INTEL 75-BOXDQ965GFEKR
Specifications
Audio
6-channel (5.1) audio subsystem using the SigmaTel* STAC9227 audio codec
BIOS
Intel BIOS (resident in the SPI Flash device); Support for Advanced Configuration and Power Interface ACPI), Plug and Play, and SMBIOS
Chipset
Intel Q965 Express Chipset, consisting of: Intel 82Q965 Graphics Memory Controller Hub (GMCH); Intel 82801HO I/O Controller Hub (ICH8DO)
Expansion Capabilities
Two PCI Conventional bus connectors; One PCI Express x1 bus add-in card connector; One PCI Express x16 bus add-in card connector
Form Factor
microATX Form Factor (9.60 inches by 9.60 inches [243.84 millimeters by 243.84 millimeters])
Hardware Monitor Subsystem
Intel Quiet System Technology implemented through the ICH8 Manageability Engine; Voltage sense to detect out of range power supply voltages; Thermal sense to detect out of range thermal values; Three fan headers; Three fan sense inputs used to monitor fan activity
Instantly Available PC Technology
Support for PCI Local Bus Specification Revision 2.3; Support for PCI Express Revision 1.0a; Suspend to RAM support; Wake on PCI, RS-232, front panel, PS/2 devices, and USB ports
LAN Support
Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel 82566DM Gigabit Ethernet Controller
Legacy I/O Control
Legacy I/O controller for diskette drive, serial, parallel, and optional PS/2* ports
Memory
Four 240-pin DDR2 SDRAM Dual Inline Memory Module (DIMM) sockets; Support for DDR2 800, DDR2 667, or DDR2 533 MHz DIMMs; Support for up to 8 GB of system memory using DDR2 667 or DDR2 533 DIMMs; Support for up to 4 GB of system memory using DDR2 800 DIMMs
Peripheral Interfaces
10 USB ports; One serial port; One parallel port; Six Serial ATA interfaces; One Parallel ATA IDE interface with UDMA 33, ATA-66/100/133 support; One diskette drive interface
Processor
Intel Pentium D
Support for the following: Intel Core2 Duo processor in an LGA775 socket with a 1066 or 800 MHz
USB
Support for USB 2.0 devices
Video
Intel GMA 3000 onboard graphics subsystem
Features
- 1066 MHz
- 24-pin main power connector, 4-pin ATX12V connector
- ATA-133, Serial ATA-300 (RAID)
- Celeron D, Core 2 Duo, Core 2 Quad, Pentium 4, Pentium D
- Intel Q965 Express
- LGA775 Socket
Datasheet
Extracted Text
Intel® Desktop Board
DQ965GF
Technical Product Specification
September 2006
Order Number: D56021-001US
®
The Intel Desktop Board DQ965GF may contain design defects or errors known as errata that may cause the product to deviate from published specifications. Current
characterized errata are documented in the Intel Desktop Board DQ965GF Specification Update.
Revision History
Revision Revision History Date
®
-001 First release of the Intel Desktop Board DQ965GF Technical Product September 2006
Specification.
®
This product specification applies to only the standard Intel Desktop Board DQ965GF with
BIOS identifier CO96510J.86A.
Changes to this specification will be published in the Intel Desktop Board DQ965GF Specification
Update before being incorporated into a revision of this document.
®
INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH INTEL PRODUCTS. NO LICENSE,
EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS
GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN INTEL’S TERMS AND CONDITIONS OF SALE FOR
SUCH PRODUCTS, INTEL ASSUMES NO LIABILITY WHATSOEVER, AND INTEL DISCLAIMS ANY EXPRESS OR
IMPLIED WARRANTY, RELATING TO SALE AND/OR USE OF INTEL PRODUCTS INCLUDING LIABILITY OR
WARRANTIES RELATING TO FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR INFRINGEMENT
OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. INTEL PRODUCTS ARE NOT
INTENDED FOR USE IN MEDICAL, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS.
Intel Corporation may have patents or pending patent applications, trademarks, copyrights, or other
intellectual property rights that relate to the presented subject matter. The furnishing of documents and
other materials and information does not provide any license, express or implied, by estoppel or otherwise,
to any such patents, trademarks, copyrights, or other intellectual property rights.
Intel may make changes to specifications and product descriptions at any time, without notice.
Designers must not rely on the absence or characteristics of any features or instructions marked “reserved”
or “undefined.” Intel reserves these for future definition and shall have no responsibility whatsoever for
conflicts or incompatibilities arising from future changes to them.
®
Intel desktop boards may contain design defects or errors known as errata, which may cause the product
to deviate from published specifications. Current characterized errata are available on request.
Contact your local Intel sales office or your distributor to obtain the latest specifications before placing your
product order.
Copies of documents which have an ordering number and are referenced in this document, or other Intel
literature, may be obtained from:
Intel Corporation
P.O. Box 5937
Denver, CO 80217-9808
or call in North America 1-800-548-4725, Europe 44-0-1793-431-155, France 44-0-1793-421-777,
Germany 44-0-1793-421-333, other Countries 708-296-9333.
Intel, the Intel logo, Pentium, and Celeron are registered trademarks of Intel Corporation or its subsidiaries
in the United States and other countries.
* Other names and brands may be claimed as the property of others.
Copyright © 2006, Intel Corporation. All rights reserved.
Preface
This Technical Product Specification (TPS) specifies the board layout, components,
®
connectors, power and environmental requirements, and the BIOS for the Intel
Desktop Board DQ965GF. It describes the standard product and available
manufacturing options.
Intended Audience
The TPS is intended to provide detailed, technical information about the Desktop Board
DQ965GF and its components to the vendors, system integrators, and other engineers
and technicians who need this level of information. It is specifically not intended for
general audiences.
What This Document Contains
Chapter Description
1 A description of the hardware used on the board
2 A map of the resources of the board
3 The features supported by the BIOS Setup program
4 A description of the BIOS error messages, beep codes, and POST codes
5 Regulatory compliance and battery disposal information
Typographical Conventions
This section contains information about the conventions used in this specification. Not
all of these symbols and abbreviations appear in all specifications of this type.
Notes, Cautions, and Warnings
NOTE
�
Notes call attention to important information.
INTEGRATOR’S NOTES
#
Integrator’s notes are used to call attention to information that may be useful to
system integrators.
CAUTION
Cautions are included to help you avoid damaging hardware or losing data.
iii
Intel Desktop Board DQ965GF Technical Product Specification
Other Common Notation
# Used after a signal name to identify an active-low signal (such as USBP0#).
GB Gigabyte (1,073,741,824 bytes)
GB/sec Gigabytes per second
Gbit Gigabit (1, 073,741,824 bits)
KB Kilobyte (1024 bytes)
Kbit Kilobit (1024 bits)
kbits/sec 1000 bits per second
MB Megabyte (1,048,576 bytes)
MB/sec Megabytes per second
Mbit Megabit (1,048,576 bits)
Mbit/sec Megabits per second
xxh An address or data value ending with a lowercase h indicates a hexadecimal value.
x.x V Volts. Voltages are DC unless otherwise specified.
* This symbol is used to indicate third-party brands and names that are the property of their
respective owners.
iv
Contents
1 Product Description
1.1 Overview........................................................................................ 12
1.1.1 Feature Summary ................................................................ 12
1.1.2 Manufacturing Options .......................................................... 13
1.1.3 Board Layout....................................................................... 14
1.1.4 Block Diagram ..................................................................... 16
1.2 Online Support................................................................................ 17
1.3 Processor ....................................................................................... 17
1.4 System Memory .............................................................................. 18
1.4.1 Memory Configurations ......................................................... 20
® ®
1.5 Intel Virtualization Technology (Intel VT) ........................................ 26
®
1.6 Intel vPro™ Technology Support...................................................... 27
®
1.7 Intel Q965 Express Chipset............................................................. 28
1.7.1 Intel Q965 Graphics Subsystem.............................................. 28
1.7.2 USB ................................................................................... 30
1.7.3 Serial ATA Interfaces ............................................................ 31
1.7.4 Parallel IDE Interface............................................................ 32
1.7.5 Real-Time Clock, CMOS SRAM, and Battery.............................. 32
1.8 Legacy I/O Controller....................................................................... 33
1.8.1 Serial Port Interface.............................................................. 33
1.8.2 Parallel Port Interface ........................................................... 33
1.8.3 Diskette Drive Interface ........................................................ 33
1.8.4 PS/2 Keyboard and Mouse Interface (Optional)......................... 33
1.9 Audio Subsystem............................................................................. 34
1.9.1 Audio Subsystem Software .................................................... 34
1.9.2 Audio Connectors and Headers............................................... 35
1.10 LAN Subsystem............................................................................... 36
®
1.10.1 Intel 82566DM Gigabit Ethernet Controller ............................. 36
1.10.2 LAN Subsystem Software....................................................... 36
1.10.3 RJ-45 LAN Connector with Integrated LEDs .............................. 37
® ®
1.10.4 Intel Active Management Technology (Intel AMT) with
System Defense Feature........................................................ 37
1.10.5 Alert Standard Format (ASF) 2.0 Support................................. 38
1.11 Hardware Management Subsystem .................................................... 39
1.11.1 Hardware Monitoring and Fan Control...................................... 39
1.11.2 Fan Monitoring..................................................................... 39
1.11.3 Chassis Intrusion and Detection.............................................. 39
1.11.4 Thermal Monitoring .............................................................. 40
1.12 Power Management ......................................................................... 41
1.12.1 ACPI .................................................................................. 41
1.12.2 Hardware Support ................................................................ 43
1.13 Trusted Platform Module (TPM).......................................................... 48
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Intel Desktop Board DQ965GF Technical Product Specification
2 Technical Reference
2.1 Memory Map................................................................................... 49
2.1.1 Addressable Memory............................................................. 49
2.2 DMA Channels................................................................................. 51
2.3 Fixed I/O Map................................................................................. 52
2.4 PCI Configuration Space Map ............................................................ 53
2.5 Interrupts ...................................................................................... 54
2.6 PCI Interrupt Routing Map ................................................................ 55
2.7 Connectors and Headers................................................................... 56
2.7.1 Back Panel Connectors.......................................................... 57
2.7.2 Component-side Connectors and Headers ................................ 58
2.8 Jumper Block.................................................................................. 67
2.9 Mechanical Considerations ................................................................ 68
2.9.1 Form Factor......................................................................... 68
2.9.2 I/O Shield ........................................................................... 69
2.10 Electrical Considerations................................................................... 73
2.10.1 DC Loading.......................................................................... 73
2.10.2 Fan Header Current Capability................................................ 73
2.10.3 Add-in Board Considerations .................................................. 74
2.10.4 Power Supply Considerations ................................................. 74
2.11 Thermal Considerations.................................................................... 75
2.12 Reliability ....................................................................................... 77
2.13 Environmental ................................................................................ 78
3 Overview of BIOS Features
3.1 Introduction ................................................................................... 79
3.2 BIOS Flash Memory Organization....................................................... 80
3.3 Resource Configuration .................................................................... 80
3.3.1 PCI Autoconfiguration ........................................................... 80
3.3.2 PCI IDE Support................................................................... 81
3.4 System Management BIOS (SMBIOS)................................................. 81
3.5 Legacy USB Support ........................................................................ 82
3.6 BIOS Updates ................................................................................. 82
3.6.1 Language Support ................................................................ 83
3.6.2 Custom Splash Screen .......................................................... 83
3.7 BIOS Recovery................................................................................ 83
3.8 Boot Options................................................................................... 84
3.8.1 CD-ROM Boot ...................................................................... 84
3.8.2 Network Boot....................................................................... 84
3.8.3 Booting Without Attached Devices........................................... 84
3.8.4 Changing the Default Boot Device During POST ........................ 84
3.9 Adjusting Boot Speed....................................................................... 85
3.9.1 Peripheral Selection and Configuration..................................... 85
3.9.2 BIOS Boot Optimizations ....................................................... 85
3.10 BIOS Security Features .................................................................... 86
vi
Contents
4 Error Messages and Beep Codes
4.1 Speaker ......................................................................................... 87
4.2 BIOS Beep Codes ............................................................................ 87
4.3 BIOS Error Messages ....................................................................... 87
4.4 Port 80h POST Codes ....................................................................... 88
5 Regulatory Compliance and Battery Disposal Information
5.1 Regulatory Compliance..................................................................... 93
5.1.1 Safety Regulations................................................................ 93
5.1.2 European Union Declaration of Conformity Statement................ 94
5.1.3 Product Ecology Statements................................................... 96
5.1.4 EMC Regulations .................................................................. 99
5.1.5 Product Certification Markings (Board Level)............................100
5.2 Battery Disposal Information............................................................101
Figures
1. Major Board Components.................................................................. 14
2. Block Diagram................................................................................ 16
3. Memory Channel Configuration and DIMM Configuration........................ 21
4. Dual Channel (Interleaved) Mode Configuration with Two DIMMs............ 22
5. Dual Channel (Interleaved) Mode Configuration with Three DIMMs ......... 22
6. Dual Channel (Interleaved) Mode Configuration with Four DIMMs ........... 23
7. Single Channel (Asymmetric) Mode Configuration with One DIMM .......... 24
8. Single Channel (Asymmetric) Mode Configuration with Three DIMMs....... 24
9. Flex Mode Configuration with Two DIMMs............................................ 25
10. Front/Back Panel Audio Connector Options.......................................... 35
11. LAN Connector LED Locations............................................................ 37
12. Thermal Sensors and Fan Headers ..................................................... 40
13. Location of the Onboard Power Indicator LEDs..................................... 47
14. Detailed System Memory Address Map ............................................... 50
15. Back Panel Connectors ..................................................................... 57
16. Component-side Connectors and Headers ........................................... 58
17. Connection Diagram for Front Panel Header ........................................ 64
18. Connection Diagram for Front Panel USB Headers ................................ 66
19. Connection Diagram for IEEE-1394a Header........................................ 66
20. Location of the Jumper Block............................................................. 67
21. Board Dimensions........................................................................... 68
22. I/O Shield Dimensions for Boards with IEEE-1394a and
PS/2 Connectors ............................................................................. 70
23. I/O Shield Dimensions for Boards without PS/2 Connectors ................... 71
24. I/O Shield Dimensions for Boards without IEEE-1394a and
PS/2 Connectors ............................................................................. 72
25. Localized High Temperature Zones..................................................... 76
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Intel Desktop Board DQ965GF Technical Product Specification
Tables
1. Feature Summary............................................................................ 12
2. Manufacturing Options ..................................................................... 13
3. Board Components Shown in Figure 1 ................................................ 15
4. Supported Memory Configurations ..................................................... 18
5. Memory Operating Frequencies ......................................................... 19
6. Audio Jack Retasking Support ........................................................... 34
7. LAN Connector LED States................................................................ 37
8. Effects of Pressing the Power Switch .................................................. 41
9. Power States and Targeted System Power........................................... 42
10. Wake-up Devices and Events ............................................................ 43
11. System Memory Map ....................................................................... 51
12. DMA Channels................................................................................. 51
13. I/O Map ......................................................................................... 52
14. PCI Configuration Space Map ............................................................ 53
15. Interrupts ...................................................................................... 54
16. PCI Interrupt Routing Map ................................................................ 55
17. Component-side Connectors and Headers Shown in Figure 16................ 59
18. High Definition Audio Link Header ...................................................... 60
19. Serial ATA Connectors...................................................................... 60
20. Chassis Intrusion Header.................................................................. 60
21. Serial Port Header ........................................................................... 60
22. Front and Rear Chassis Fan Headers .................................................. 60
23. Processor Fan Header ...................................................................... 61
24. Front Panel Audio Header ................................................................. 61
25. Processor Core Power Connector........................................................ 63
26. Main Power Connector...................................................................... 63
27. Front Panel Header .......................................................................... 64
28. States for a One-Color Power LED...................................................... 65
29. States for a Two-Color Power LED...................................................... 65
30. Auxiliary Front Panel Power LED Header.............................................. 65
31. BIOS Setup Configuration Jumper Settings.......................................... 67
32. Compatible I/O shields ..................................................................... 69
33. DC Loading Characteristics ............................................................... 73
34. Fan Header Current Capability........................................................... 73
35. Thermal Considerations for Components ............................................. 77
36. Desktop Board DQ965GF Environmental Specifications.......................... 78
37. BIOS Setup Program Menu Bar.......................................................... 80
38. BIOS Setup Program Function Keys.................................................... 80
39. Acceptable Drives/Media Types for BIOS Recovery ............................... 83
40. Boot Device Menu Options ................................................................ 84
41. Supervisor and User Password Functions............................................. 86
42. Beep Codes .................................................................................... 87
43. BIOS Error Messages ....................................................................... 87
44. Port 80h POST Code Ranges.............................................................. 88
45. Port 80h POST Codes ....................................................................... 89
46. Typical Port 80h POST Sequence........................................................ 92
viii
Contents
47. Safety Regulations........................................................................... 93
48. Lead-Free Board Markings ................................................................ 98
49. EMC Regulations ............................................................................. 99
50. Product Certification Markings ..........................................................100
ix
Intel Desktop Board DQ965GF Technical Product Specification
x
1 Product Description
What This Chapter Contains
1.1 Overview........................................................................................ 12
1.2 Online Support................................................................................ 17
1.3 Processor ....................................................................................... 17
1.4 System Memory .............................................................................. 18
® ®
1.5 Intel Virtualization Technology (Intel VT)........................................ 26
®
1.6 Intel vPro™ Technology Support...................................................... 27
®
1.7 Intel Q965 Express Chipset............................................................. 28
1.8 Legacy I/O Controller....................................................................... 33
1.9 Audio Subsystem............................................................................. 34
1.10 LAN Subsystem............................................................................... 36
1.11 Hardware Management Subsystem .................................................... 39
1.12 Power Management ......................................................................... 41
1.13 Trusted Platform Module (TPM).......................................................... 48
11
Intel Desktop Board DQ965GF Technical Product Specification
1.1 Overview
1.1.1 Feature Summary
Table 1 summarizes the major features of the Desktop Board DQ965GF.
Table 1. Feature Summary
Form Factor microATX Form Factor (9.60 inches by 9.60 inches [243.84 millimeters by 243.84
millimeters])
Processor Support for the following:
®
• Intel Core™2 Duo processor in an LGA775 socket with a 1066 or 800 MHz
system bus
® ®
• Intel Pentium D processor in an LGA775 socket with an 800 or 533 MHz
system bus
® ®
• Intel Pentium 4 processor in an LGA775 socket with an 800 or 533 MHz
system bus
® ®
• Intel Celeron D processor in an LGA775 socket with a 533 MHz system bus
• Four 240-pin DDR2 SDRAM Dual Inline Memory Module (DIMM) sockets
Memory
• Support for DDR2 800, DDR2 667, or DDR2 533 MHz DIMMs
• Support for up to 8 GB of system memory using DDR2 667 or DDR2 533
DIMMs
• Support for up to 4 GB of system memory using DDR2 800 DIMMs
®
Chipset
Intel Q965 Express Chipset, consisting of:
®
• Intel 82Q965 Graphics Memory Controller Hub (GMCH)
®
• Intel 82801HO I/O Controller Hub (ICH8DO)
®
Video Intel GMA 3000 onboard graphics subsystem
Audio 6-channel (5.1) audio subsystem using the SigmaTel* STAC9227 audio codec
Legacy I/O Control Legacy I/O controller for diskette drive, serial, parallel, and optional PS/2* ports
USB Support for USB 2.0 devices
• 10 USB ports
Peripheral
Interfaces
• One serial port
• One parallel port
• Six Serial ATA interfaces
• One Parallel ATA IDE interface with UDMA 33, ATA-66/100/133 support
• One diskette drive interface
®
LAN Support Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel 82566DM
Gigabit Ethernet Controller
®
• Intel BIOS (resident in the SPI Flash device)
BIOS
• Support for Advanced Configuration and Power Interface (ACPI), Plug and Play,
and SMBIOS
A component that enhances platform security
Trusted Platform
Module (TPM),
revision 1.2
continued
12
Product Description
Table 1. Feature Summary (continued)
• Support for PCI Local Bus Specification Revision 2.3
Instantly Available
PC Technology • Support for PCI Express* Revision 1.0a
• Suspend to RAM support
• Wake on PCI, RS-232, front panel, PS/2 devices, and USB ports
• Two PCI Conventional* bus connectors
Expansion
Capabilities
• One PCI Express x1 bus add-in card connector
• One PCI Express x16 bus add-in card connector
®
• Intel Quiet System Technology implemented through the ICH8
Hardware Monitor
Manageability Engine
Subsystem
• Voltage sense to detect out of range power supply voltages
• Thermal sense to detect out of range thermal values
• Three fan headers
• Three fan sense inputs used to monitor fan activity
® Provides remote management, improved security, and energy-efficient
Intel vPro™
performance
Technology
support
1.1.2 Manufacturing Options
Table 2 describes the manufacturing options. Not every manufacturing option is
available in all marketing channels. Please contact your Intel representative to
determine which manufacturing options are available to you.
Table 2. Manufacturing Options
Two IEEE-1394a interfaces: one back panel connector and one front-panel header
IEEE-1394a
interfaces
Back panel PS/2 ports for mouse and keyboard connection
PS/2 ports
For information about Refer to
Available configurations for the Desktop Board DQ965GF Section 1.2, page 17
13
Intel Desktop Board DQ965GF Technical Product Specification
1.1.3 Board Layout
Figure 1 shows the location of the major components.
A B C D E F
G
H
DD
CC
I
BB
J
AA
K
Z
Y
L
M
N
W V U TS R Q O
X P
OM18440
Figure 1. Major Board Components
Table 3 lists the components identified in Figure 1.
14
Product Description
Table 3. Board Components Shown in Figure 1
Item/callout
from Figure 1 Description
A IEEE-1394a front panel header (optional)
B Front panel audio header
C PCI Conventional bus add-in card connector 1
D PCI Express x1 connector
E PCI Express x16 connector
F Back panel connectors
G Processor core power connector
H Rear chassis fan header
I LGA775 processor socket
J Intel 82Q965 GMCH
K Processor fan header
L DIMM Channel A sockets
M Serial port header
N DIMM Channel B sockets
O Diskette drive connector
P Main Power connector
Q Battery
R Front chassis fan header
S Chassis intrusion header
T Intel 82801HO I/O Controller Hub (ICH8DO)
U BIOS Setup configuration jumper block
V Auxiliary front panel power LED header
W Front panel header
X Serial ATA connectors [6]
Y Front panel USB header
Z Speaker
AA Front panel USB header
BB Parallel ATE IDE connector
CC PCI Conventional bus add-in card connector 2
DD High Definition Audio header
15
Intel Desktop Board DQ965GF Technical Product Specification
1.1.4 Block Diagram
Figure 2 is a block diagram of the major functional areas.
Gigabit Ethernet LAN
PCI Express x1 Interface
Controller Connector
PCI Express x1 Slot 1 Back Panel/Front
USB Panel
USB Ports
Parallel ATA Parallel ATA
IDE IDE
Serial Port
Connector Controller
Legacy
Parallel Port
I/O
System Bus
LGA775
PS/2 Mouse*
Controller
(1066/800/533
Processor
PS/2 Keyboard*
MHz)
Socket
LPC
PCI Express Diskette Drive
Bus
x16 Connector
Connector
Intel Q965 Express Chipset
Intel 82Q965
PCI Express
Serial
Graphics and Intel 82801HO
x16 Interface
Peripheral
I/O Controller Hub
Memory
Interface (SPI)
Display (ICH8DO)
Controller Hub
Flash Device
Interface
(GMCH)
VGA
Port
TPM
LPC Bus
Component
Dual-Channel
Memory Bus
Channel A
SMBus
DIMMs (2)
Serial ATA Serial ATA IDE
IDE Interface Connectors (6)
Channel B
DIMMs (2)
Mic In
IEEE-1394a IEEE-1394a PCI
Line Out
Connector/Header* Controller* Bus
Audio
Line In/Retasking Jack
Codec
Line Out/Retasking Jack
PCI Bus
Mic In/Retasking Jack
PCI Slot 1
High Definition
PCI Slot 2
SMBus
Audio Link
Header
* = Optional
OM18449
Figure 2. Block Diagram
16
DMI Interconnect
High Definition Audio Link
Product Description
1.2 Online Support
To find information about… Visit this World Wide Web site:
®
Intel Desktop Board DQ965GF under http://www.intel.com/design/motherbd
“Desktop Board Products” or “Desktop
Board Support”
http://support.intel.com/support/motherboards/desktop
Available configurations for the http://developer.intel.com/design/motherbd/gf/gf_available.htm
Desktop Board DQ965GF
Processor data sheets http://www.intel.com/products/index.htm
ICH8DO addressing http://developer.intel.com/design/chipsets/datashts
Audio software and utilities http://www.intel.com/design/motherbd
LAN software and drivers http://www.intel.com/design/motherbd
Supported video modes http://www.intel.com/design/motherbd/gf/gf_documentation.htm
1.3 Processor
The board is designed to support the following processors:
• Intel Core 2 Duo processor in an LGA775 socket with a 1066 or 800 MHz
system bus
• Intel Pentium D processor in an LGA775 processor socket with an 800 or 533 MHz
system bus
• Intel Pentium 4 processor in an LGA775 processor socket with an 800 or 533 MHz
system bus
• Intel Celeron D processor in an LGA775 processor socket with a 533 MHz
system bus
See the Intel web site listed below for the most up-to-date list of supported
processors.
For information about… Refer to:
Supported processors http://www.intel.com/design/motherbd/gf/gf_proc.htm
CAUTION
Use only the processors listed on web site above. Use of unsupported processors can
damage the board, the processor, and the power supply.
INTEGRATOR’S NOTE
#
Use only ATX12V-compliant power supplies.
For information about Refer to
Power supply connectors Section 2.7.2.2, page 63
17
Intel Desktop Board DQ965GF Technical Product Specification
1.4 System Memory
The board has four DIMM sockets and supports the following memory features:
• 1.8 V (only) DDR2 SDRAM DIMMs with gold-plated contacts
• Unbuffered, single-sided or double-sided DIMMs with the following restriction:
Double-sided DIMMS with x16 organization are not supported.
• 8 GB maximum total system memory using DDR2 667 or DDR2 533 DIMMs;
4 GB maximum total system memory using DDR2 800 DIMMs. Refer to
Section 2.1.1 on page 49 for information on the total amount of addressable
memory.
• Minimum total system memory: 512 MB
• Non-ECC DIMMs
• Serial Presence Detect
• DDR2 800, DDR2 667, or DDR2 533 MHz SDRAM DIMMs
• DDR2 800 DIMMs with SPD timings of only 5-5-5 or 6-6-6 (tCL-tRCD-tRP)
NOTE
�
A minimum of 512 MB of system memory is required to fully enable both the onboard
graphics and the manageability engine.
� NOTE
To be fully compliant with all applicable DDR SDRAM memory specifications, the board
should be populated with DIMMs that support the Serial Presence Detect (SPD) data
structure. This enables the BIOS to read the SPD data and program the chipset to
accurately configure memory settings for optimum performance. If non-SPD memory
is installed, the BIOS will attempt to correctly configure the memory settings, but
performance and reliability may be impacted or the DIMMs may not function under the
determined frequency.
Table 4 lists the supported DIMM configurations.
Table 4. Supported Memory Configurations
Smallest usable Largest usable Maximum capacity
DIMM (one x16 DIMM (one x8 with four identical
DIMM SDRAM Single-sided Double-sided x8 Double-sided
Type Technology DIMM) DIMM) DIMMs
DDR2 533 256 Mbit 128 MB 512 MB 2 GB
DDR2 533 512 Mbit 256 MB 1 GB 4 GB
DDR2 533 1 Gbit 512 MB 2 GB 8 GB
DDR2 667 256 Mbit 128 MB 512 MB 2 GB
DDR2 667 512 Mbit 256 MB 1 GB 4 GB
DDR2 667 1 Gbit 512 MB 2 GB 8 GB
DDR2 800 256 Mbit 128 MB 512 MB 2 GB
DDR2 800 512 Mbit 256 MB 1 GB 4 GB
18
Product Description
NOTE
�
Regardless of the DIMM type used, the memory frequency will either be equal to or
less than the processor system bus frequency. For example, if DDR2 800 memory is
used with a 533 MHz system bus frequency processor, the memory will operate at
533 MHz. Table 5 lists the resulting operating memory frequencies based on the
combination of DIMMs and processors.
Table 5. Memory Operating Frequencies
DIMM Type Processor system bus frequency Resulting memory frequency
DDR2 533 533 MHz 533 MHz
DDR2 533 800 MHz 533 MHz
DDR2 533 1066 MHz 533 MHz
DDR2 667 533 MHz 533 MHz
DDR2 667 800 MHz 667 MHz
DDR2 667 1066 MHz 667 MHz
DDR2 800 533 MHz 533 MHz
DDR2 800 800 MHz 800 MHz
DDR2 800 1066 MHz 800 MHz
19
Intel Desktop Board DQ965GF Technical Product Specification
1.4.1 Memory Configurations
The Intel 82Q965 GMCH supports the following types of memory organization:
• Dual channel (Interleaved) mode. This mode offers the highest throughput for
real world applications. Dual channel mode is enabled when the installed memory
capacities of both DIMM channels are equal. Technology and device width can vary
from one channel to the other but the installed memory capacity for each channel
must be equal. If different speed DIMMs are used between channels, the slowest
memory timing will be used.
• Single channel (Asymmetric) mode. This mode is equivalent to single channel
bandwidth operation for real world applications. This mode is used when only a
single DIMM is installed or the memory capacities are unequal. Technology and
device width can vary from one channel to the other. If different speed DIMMs are
used between channels, the slowest memory timing will be used.
• Flex mode. This mode provides the most flexible performance characteristics.
The bottommost DRAM memory (the memory that is lowest within the system
memory map) is mapped to dual channel operation; the topmost DRAM memory
(the memory that is nearest to the 8 GB address space limit), if any, is mapped to
single channel operation. Flex mode results in multiple zones of dual and single
channel operation across the whole of DRAM memory. To use flex mode, it is
necessary to populate both channels.
Figure 3 illustrates the memory channel and DIMM configuration.
NOTE
�
The DIMM0 sockets of both channels are blue. The DIMM1 sockets of both channels
are black.
20
Product Description
Figure 3. Memory Channel Configuration and DIMM Configuration
INTEGRATOR’S NOTE
#
Regardless of the memory configuration used (dual channel, single channel, or flex
mode), DIMM 0 of Channel A must always be populated. This is a requirement of the
ICH8 Manageability Engine feature.
21
Intel Desktop Board DQ965GF Technical Product Specification
1.4.1.1 Dual Channel (Interleaved) Mode Configurations
Figure 4 shows a dual channel configuration using two DIMMs. In this example, the
DIMM0 (blue) sockets of both channels are populated with identical DIMMs.
1 GB
Channel A, DIMM 0
Channel A, DIMM 1
1 GB Channel B, DIMM 0
Channel B, DIMM 1
OM18339
Figure 4. Dual Channel (Interleaved) Mode Configuration with Two DIMMs
Figure 5 shows a dual channel configuration using three DIMMs. In this example, the
combined capacity of the two DIMMs in Channel A equal the capacity of the single
DIMM in the DIMM0 (blue) socket of Channel B.
512 MB
Channel A, DIMM 0
1 GB Channel A, DIMM 1
512 MB
1 GB
Channel B, DIMM 0
Channel B, DIMM 1
OM18340
Figure 5. Dual Channel (Interleaved) Mode Configuration with Three DIMMs
22
Product Description
Figure 6 shows a dual channel configuration using four DIMMs. In this example, the
combined capacity of the two DIMMs in Channel A equal the combined capacity of the
two DIMMs in Channel B. Also, the DIMMs are matched between DIMM0 and DIMM1
of both channels.
512 MB
Channel A, DIMM 0
1 GB 1 GB Channel A, DIMM 1
512 MB
Channel B, DIMM 0
1 GB
Channel B, DIMM 1
OM18341
Figure 6. Dual Channel (Interleaved) Mode Configuration with Four DIMMs
23
Intel Desktop Board DQ965GF Technical Product Specification
1.4.1.2 Single Channel (Asymmetric) Mode Configurations
NOTE
�
Dual channel (Interleaved) mode configurations provide the highest memory
throughput.
Figure 7 shows a single channel configuration using one DIMM. In this example, only
the DIMM0 (blue) socket of Channel A is populated. Channel B is not populated.
1 GB Channel A, DIMM 0
Channel A, DIMM 1
Channel B, DIMM 0
Channel B, DIMM 1
OM18344
Figure 7. Single Channel (Asymmetric) Mode Configuration with One DIMM
Figure 8 shows a single channel configuration using three DIMMs. In this example, the
combined capacity of the two DIMMs in Channel A does not equal the capacity of the
single DIMM in the DIMM0 (blue) socket of Channel B.
512 MB
Channel A, DIMM 0
1 GB 1 GB
Channel A, DIMM 1
1 GB
Channel B, DIMM 0
Channel B, DIMM 1
OM18343
Figure 8. Single Channel (Asymmetric) Mode Configuration with Three
DIMMs
24
Product Description
1.4.1.3 Flex Mode Configuration
NOTE
�
The use of flex mode requires DIMMs to be installed in both channels.
Figure 9 shows a flex mode configuration using two DIMMs. The operation is as
follows:
• The 512 MB DIMM in the Channel A, DIMM 0 socket and the lower 512 MB of the
DIMM in the Channel B, DIMM 0 socket operate together in dual channel mode.
• The remaining (upper) 512 MB of the DIMM in Channel B operates in single
channel mode.
512 MB
Channel A, DIMM 0
Channel A, DIMM 1
1 GB
Channel B, DIMM 0
Channel B, DIMM 1
OM18404
Figure 9. Flex Mode Configuration with Two DIMMs
25
Intel Desktop Board DQ965GF Technical Product Specification
® ®
1.5 Intel Virtualization Technology (Intel VT)
Virtualization is a proven technology that enables one computer to function as multiple
“virtual” systems. It enables multiple operating systems and application stacks to be
hosted in logically isolated partitions — also known as virtual machines. Partitions are
independent virtualized environments within the same PC with shared, prioritized
access to system hardware. Platform resources, such as processors, memory,
storage, and network adapters can be allocated and prioritized for the different
partitions to meet specific business and application requirements.
® ®
Intel Virtualization Technology (Intel VT) offers silicon-level support for core
®
virtualization processes and a new, dedicated space in the software stack for an Intel
®
Lightweight Virtual Machine Monitor (Intel LVMM) — a software layer that controls
and prioritizes each partition’s access to the system hardware.
Intel provides the virtualization capability within Intel Virtualization Technology-
enabled processors and validated chipsets. An Intel Virtualization Technology-enabled
BIOS is also needed. Standard memory, storage, and graphics cards work with the
Intel Virtualization Technology solution. However, because the quality and amount of
such system resources directly affect virtualization performance, it is advisable to be
®
generous in these areas. Using an Intel network adapter and compatible driver
ensures the ability to take advantage of the advanced security and manageability
capabilities of Intel Virtualization Technology.
A Virtual Machine Monitor enabled for Intel Virtualization Technology, such as
®
Intel LVMM, is also required. Intel LVMM is available to Independent Software
Vendors (ISVs). After the system hardware and VMM are in place, Intel Virtualization
Technology-enabled applications will need to be installed to take advantage of the
built-in hardware capabilities of Intel Virtualization Technology and the virtualization
enhancement of Intel LVMM.
For information about Refer to
Intel Virtualization Technology http://www.intel.com/go/dovirtualization/
INTEGRATOR’S NOTE
#
Intel Virtualization Technology-based platforms require system hardware,
virtualization software, and applications that are enabled for Intel Virtualization
Technology.
Individual PC manufacturers will determine whether to ship their platforms with Intel
Virtualization Technology enabled or disabled by default. Also, each PC manufacturer
may choose to ship Intel LVMM already installed on their platforms or on separate
CD-ROMs.
26
Product Description
®
1.6 Intel vPro™ Technology Support
The board supports Intel vPro technology, Intel’s platform for the digital office.
Intel vPro technology with Active Management Technology provides remote
management, improved security, and energy-efficient performance.
The management engine microcontroller in the Intel Q965 Express Chipset provides
remote hardware management capabilities regardless of the state of the operating
system. The embedded packet filters and sensors in ICH8DO provide enhanced
security features customizable through third party applications.
INTEGRATOR’S NOTE
#
In addition to the hardware support on the board (the Intel 82801HO ICH8DO and the
Intel 82566DM Gigabit Ethernet Controller), Intel vPro technology requires the use of
an Intel Core 2 Duo processor and compatible third-party applications.
For information about Refer to
Intel vPro technology and compatible third-party applications http://www.intel.com/vpro/
27
Intel Desktop Board DQ965GF Technical Product Specification
®
1.7 Intel Q965 Express Chipset
The Intel Q965 Express chipset consists of the following devices:
• Intel 82Q965 Graphics and Memory Controller Hub (GMCH) with Direct Media
Interface (DMI) interconnect
• Intel 82801HO I/O Controller Hub (ICH8DO) with DMI interconnect
The GMCH component provides interfaces to the CPU, memory, PCI Express, and the
DMI interconnect. The component also provides integrated graphics capabilities
supporting 3D, 2D and display capabilities. The ICH8DO is a centralized controller for
the board’s I/O paths.
For information about Refer to
The Intel Q965 Express chipset http://developer.intel.com/
Resources used by the chipset Chapter 2
1.7.1 Intel Q965 Graphics Subsystem
The Intel Q965 Express chipset contains two separate, mutually exclusive graphics
options. Either the GMA 3000 graphics controller (contained within the 82Q965
GMCH) is used, or a PCI Express x16 add-in card can be used. When a PCI Express
x16 add-in card is installed, the GMA 3000 graphics controller is disabled.
®
1.7.1.1 Intel GMA 3000 Graphics Controller
The Intel GMA 3000 graphics controller features the following:
• 667 MHz core frequency
• High performance 3-D setup and render engine
• High quality texture engine
⎯ DX9.0c* and OpenGL* 1.4 + extensions compliant
⎯ Vertex Shader Model 2.0 / 3.0 (Software Only)
⎯ Hardware Pixel Shader 2.0
⎯ 32-bit and 16-bit Full Precision Floating Point Operations
⎯ Up to eight Multiple Render Targets (MRTs)
⎯ Occlusion Query
⎯ 128-bit floating point texture formats
⎯ Bilinear, Trilinear, and Anisotropic MipMap filtering
⎯ Shadow maps and double sided stencils
⎯ Alpha and luminance maps
⎯ Texture color-keying/chroma-keying
⎯ Cubic environment reflection mapping
⎯ Enhanced texture blending functions
• 3D Graphics Rendering enhancements
⎯ 1.3 dual texture GigaPixel/sec fill rate
⎯ 16 and 32 bit color
28
Product Description
⎯ Maximum 3D supported resolution of 1600 x 1200 x 32 at 85 Hz
⎯ Vertex cache
⎯ Anti-aliased lines
⎯ OpenGL version 1.5 support with vertex buffer and EXT_Shadow extensions
• 2D Graphics enhancements
⎯ 8, 16, and 32 bit color
⎯ Optimized 256-bit BLT engine
⎯ Color space conversion
⎯ Anti-aliased lines
• Video
⎯ Hardware motion compensation for MPEG2 and HD video
⎯ Software DVD at 30 fps full screen
⎯ Motion adaptive de-interlacing
• Display
⎯ Integrated 24-bit 400 MHz RAMDAC
⎯ Up to 2048 x 1536 at 75 Hz refresh (QXGA)
⎯ DVI specification 1.0 compliant
⎯ Dual independent display options with digital display
⎯ 180-degree hardware screen rotation
⎯ Hardware color cursor support
⎯ Supports TMDS transmitters or TV-out encoders
⎯ HDCP support
⎯ DDC2B compliant interface with Advanced Digital Display 2 card or Media
Expansion Card (ADD2/MEC), support for TV-out/TV-in and DVI digital display
connections
⎯ Supports flat panels up to 2048 x 1536 at 75 Hz (when in dual-channel mode)
or digital CRT/HDTV at 1920 x 1080 at 85 Hz (with ADD2/MEC)
⎯ Two multiplexed SDVO port interfaces with 270 MHz pixel clocks using an
ADD2/MEC card
• Dynamic Video Memory Technology (DVMT) support up to 256 MB
®
• Intel Zoom Utility
1.7.1.2 Dynamic Video Memory Technology (DVMT)
DVMT enables enhanced graphics and memory performance through highly efficient
memory utilization. DVMT ensures the most efficient use of available system memory
for maximum 2-D/3-D graphics performance. Up to 256 MB of system memory can be
allocated to DVMT on systems that have 512 MB or more of total system memory
installed. DVMT returns system memory back to the operating system when the
additional system memory is no longer required by the graphics subsystem.
DVMT will always use a minimal fixed portion of system physical memory (as set in the
BIOS Setup program) for compatibility with legacy applications. An example of this
would be when using VGA graphics under DOS. Once loaded, the operating system
29
Intel Desktop Board DQ965GF Technical Product Specification
and graphics drivers allocate additional system memory to the graphics buffer as
needed for performing graphics functions.
NOTE
�
The use of DVMT requires operating system driver support.
1.7.1.3 Configuration Modes
A list of supported modes for the Intel GMA 3000 graphics controller is available as a
downloadable document.
For information about Refer to
Supported video modes for the board Section 1.2, page 17
1.7.1.4 Advanced Digital Display (ADD2/MEC) Card Support
The GMCH routes two multiplexed SDVO ports that are each capable of driving up to a
200 MHz pixel clock to the PCI Express x16 connector. The SDVO ports can be paired
for a dual channel configuration to support up to a 400 MHz pixel clock. When an
ADD2/MEC card is detected, the Intel GMA 3000 graphics controller is enabled and the
PCI Express x16 connector is configured for SDVO mode. SDVO mode enables the
SDVO ports to be accessed by the ADD2/MEC card. An ADD2/MEC card can either be
configured to support simultaneous display with the primary VGA display or can be
configured to support dual independent display as an extended desktop configuration
with different color depths and resolutions. ADD2/MEC cards can be designed to
support the following configurations:
• TV-Out (composite video)
• Transition Minimized Differential Signaling (TMDS) for DVI 1.0
• Low Voltage Differential Signaling (LVDS)
• Single device operating in dual channel mode
• VGA output
• HDTV output
• HDMI/UDI support (when used with the HD Audio Link)
1.7.2 USB
The board supports up to 10 USB 2.0 ports, supports UHCI and EHCI, and uses UHCI-
and EHCI-compatible drivers.
The ICH8DO provides the USB controller for all ports. The port arrangement is as
follows:
• Six ports are implemented with stacked back panel connectors
• Four ports are routed to two separate front panel USB headers
30
Product Description
NOTE
�
Computer systems that have an unshielded cable attached to a USB port may not
meet FCC Class B requirements, even if no device is attached to the cable. Use
shielded cable that meets the requirements for full-speed devices.
For information about Refer to
The location of the USB connectors on the back panel Figure 15, page 57
The location of the front panel USB headers Figure 16, page 58
1.7.3 Serial ATA Interfaces
The board provides six Serial ATA (SATA) connectors, which support one device per
connector.
1.7.3.1 Serial ATA Support
The ICH8DO’s Serial ATA controller offers six independent Serial ATA ports with a
theoretical maximum transfer rate of 3 Gbits/sec per port. One device can be installed
on each port for a maximum of six Serial ATA devices. A point-to-point interface is
used for host to device connections, unlike Parallel ATA IDE which supports a
master/slave configuration and two devices per channel.
For compatibility, the underlying Serial ATA functionality is transparent to the
operating system. The Serial ATA controller can operate in both legacy and native
modes. In legacy mode, standard IDE I/O and IRQ resources are assigned (IRQ 14
and 15). In Native mode, standard PCI Conventional bus resource steering is used.
Native mode is the preferred mode for configurations using the Windows* XP and
Windows 2000 operating systems.
NOTE
�
Many Serial ATA drives use new low-voltage power connectors and require adaptors or
power supplies equipped with low-voltage power connectors.
For more information, see: http://www.serialata.org/
For information about Refer to
The location of the Serial ATA connectors Figure 16, page 58
1.7.3.2 Serial ATA RAID
The ICH8DO supports the following RAID (Redundant Array of Independent Drives)
levels:
• RAID 0 - data striping
• RAID 1 - data mirroring
• RAID 0+1 (or RAID 10) - data striping and mirroring
• RAID 5 - distributed parity
31
Intel Desktop Board DQ965GF Technical Product Specification
1.7.4 Parallel IDE Interface
The Parallel ATA IDE controller has one bus-mastering Parallel ATA IDE interface. The
Parallel ATA IDE interface supports the following modes:
• Programmed I/O (PIO): processor controls data transfer.
• 8237-style DMA: DMA offloads the processor, supporting transfer rates of up to
16 MB/sec.
• Ultra DMA: DMA protocol on IDE bus supporting host and target throttling and
transfer rates of up to 33 MB/sec.
• ATA-66: DMA protocol on IDE bus supporting host and target throttling and
transfer rates of up to 66 MB/sec. ATA-66 protocol is similar to Ultra DMA and is
device driver compatible.
• ATA-100: DMA protocol on IDE bus allows host and target throttling. The ATA-100
logic can achieve read transfer rates up to 100 MB/sec and write transfer rates up
to 88 MB/sec.
• ATA-133: DMA protocol on IDE bus allows host and target throttling. The ATA-133
logic is designed to achieve read transfer rates up to 133 MB/sec and write transfer
rates in excess of 100 MB/sec.
� NOTE
ATA-66, ATA-100, and ATA-133 are faster timings and require a specialized cable to
reduce reflections, noise, and inductive coupling.
The Parallel ATA IDE interface also supports ATAPI devices (such as CD-ROM drives)
and ATA devices. The BIOS supports Logical Block Addressing (LBA) and Extended
Cylinder Head Sector (ECHS) translation modes. The drive reports the transfer rate
and translation mode to the BIOS.
For information about Refer to
The location of the Parallel ATA IDE connector Figure 16, page 58
1.7.5 Real-Time Clock, CMOS SRAM, and Battery
A coin-cell battery (CR2032) powers the real-time clock and CMOS memory. When
the computer is not plugged into a wall socket, the battery has an estimated life of
three years. When the computer is plugged in, the standby current from the power
supply extends the life of the battery. The clock is accurate to ± 13 minutes/year at
25 ºC with 3.3 VSB applied.
� NOTE
If the battery and AC power fail, custom defaults, if previously saved, will be loaded
into CMOS RAM at power-on.
When the voltage drops below a certain level, the BIOS Setup program settings stored
in CMOS RAM (for example, the date and time) might not be accurate. Replace the
battery with an equivalent one. Figure 1 on page 14 shows the location of the battery.
32
Product Description
1.8 Legacy I/O Controller
The I/O controller provides the following features:
• One serial port
• One parallel port with Extended Capabilities Port (ECP) and Enhanced Parallel Port
(EPP) support
• Serial IRQ interface compatible with serialized IRQ support for PCI systems
• PS/2-style mouse and keyboard interfaces
• Interface for one 1.44 MB or 2.88 MB diskette drive
• Intelligent power management, including a programmable wake-up event interface
• PCI power management support
The BIOS Setup program provides configuration options for the I/O controller.
1.8.1 Serial Port Interface
The serial port header is located on the component side of the board. The serial port
supports data transfers at speeds up to 115.2 kbits/sec with BIOS support.
For information about Refer to
The location of the serial port header Figure 16, page 58
1.8.2 Parallel Port Interface
The parallel port connector is located on the back panel. Use the BIOS Setup program
to set the parallel port mode.
For information about Refer to
The location of the parallel port connector Figure 15, page 57
1.8.3 Diskette Drive Interface
The I/O controller supports one diskette drive. Use the BIOS Setup program to
configure the diskette drive interface.
For information about Refer to
The location of the diskette drive connector Figure 16, page 58
1.8.4 PS/2 Keyboard and Mouse Interface (Optional)
The optional PS/2 keyboard and mouse connectors are located on the back panel.
NOTE
�
The keyboard is supported in the bottom PS/2 connector and the mouse is supported
in the top PS/2 connector. Power to the computer should be turned off before a
keyboard or mouse is connected or disconnected.
For information about Refer to
The location of the optional keyboard and mouse connectors Figure 15, page 57
33
Intel Desktop Board DQ965GF Technical Product Specification
1.9 Audio Subsystem
The onboard audio subsystem consists of the following:
• Intel 82801HO ICH8DO
• Sigmatel STAC9227 audio codec
• Back panel audio connectors
• Component-side audio headers:
⎯ Front panel audio header
⎯ HD audio link header
⎯ Advanced jack sense for the front/back panel audio jacks that enables the
audio codec to recognize the device that is connected to an audio port. Within
hardware constraints, the back panel audio jacks are capable of retasking
according to the user’s definition, or can be automatically switched depending
on the recognized device type.
⎯ A signal-to-noise (S/N) ratio of 95 dB
Table 6 lists the supported retasking functions of the front panel and back panel audio
jacks.
Table 6. Audio Jack Retasking Support
Supports Supports Supports Supports
Audio Jack Line in? Line out? Microphone? Headphones?
Front panel – Green Yes Yes No Yes
Front panel – Pink Yes No Yes No
Back panel – Blue Yes Yes No No
Back panel – Green No Yes No Yes
Back panel – Pink Yes Yes Yes No
1.9.1 Audio Subsystem Software
Audio software and drivers are available from Intel’s World Wide Web site.
For information about Refer to
Obtaining audio software and drivers Section 1.2, page 17
34
Product Description
1.9.2 Audio Connectors and Headers
The board contains audio connectors and headers on both the back panel and the
component side of the board. The front panel audio header provides mic in and line
out signals for the front panel. Microphone bias is supported for both the front and
back panel microphone connectors.
The front/back panel audio connectors are configurable through the audio device
drivers. The available configurable audio ports are shown in Figure 10.
Front Panel Audio Connectors
Back Panel Audio Connectors
[Routed from Front Panel Audio Header]
Line In/Retasking Jack
[Blue]
Line Out/ Mic In/
Retasking Jack
Retasking Jack
Line Out/Retasking Jack
[Green] [Pink]
[Green]
Mic In/Retasking Jack
[Pink]
OM18469
Figure 10. Front/Back Panel Audio Connector Options
For information about Refer to
The location of the front panel audio header Figure 16, page 58
The signal names of the front panel audio header Table 24, page 61
The location of the HD Audio Link header Figure 16, page 58
The signal names of the HD Audio Link header Table 18, page 60
The back panel audio connectors Section 2.7.1, page 57
35
Intel Desktop Board DQ965GF Technical Product Specification
1.10 LAN Subsystem
The LAN subsystem consists of the following:
• Intel 82566DM Gigabit (10/100/1000 Mbits/sec) Ethernet LAN controller
• Intel 82801HO ICH8DO
• RJ-45 LAN connector with integrated status LEDs
Additional features of the LAN subsystem include:
• CSMA/CD protocol engine
• LAN connect interface between ICH8DO and LAN controller
• PCI Conventional bus power management
⎯ Supports ACPI technology
⎯ Supports LAN wake capabilities
⎯ LAN Subsystem Software
LAN software and drivers are available from Intel’s World Wide Web site.
®
1.10.1 Intel 82566DM Gigabit Ethernet Controller
The Intel 82566DM Gigabit Ethernet Controller supports the following features:
• PCI Express link
• 10/100/1000 IEEE 802.3 compliant
• Compliant to IEEE 802.3x flow control support
• Jumbo frame support
• TCP, IP, UDP checksum offload
• Transmit TCP segmentation
• Advanced packet filtering
• Full device driver compatibility
• PCI Express Power Management Support
The Intel 82566DM also provides support for:
• Alert Standard Format (ASF) 2.0
® ®
• Intel Active Management Technology (Intel AMT)
• Virtual LAN driver support for Intel VT partitions
1.10.2 LAN Subsystem Software
LAN software and drivers are available from Intel’s World Wide Web site.
For information about Refer to
Obtaining LAN software and drivers Section 1.2, page 17
36
Product Description
1.10.3 RJ-45 LAN Connector with Integrated LEDs
Two LEDs are built into the RJ-45 LAN connector (shown in Figure 11 below).
Link LED
Data Rate LED
(Green) (Green/Yellow)
OM18329
Figure 11. LAN Connector LED Locations
Table 7 describes the LED states when the board is powered up and the LAN
subsystem is operating.
Table 7. LAN Connector LED States
LED LED Color LED State Condition
Off LAN link is not established.
Link Green
On LAN link is established.
Blinking LAN activity is occurring.
Off 10 Mbits/sec data rate is selected.
Data Rate Green/Yellow Green 100 Mbits/sec data rate is selected.
Yellow 1000 Mbits/sec data rate is selected.
® ®
1.10.4 Intel Active Management Technology (Intel
AMT) with System Defense Feature
Intel Active Management Technology offers IT organizations tamper-resistant and
persistent management capabilities. Specifically, Intel AMT is a hardware-based
solution that uses out of band communication to manage access client systems in
addition to offering encrypted and persistent asset management and remote
diagnostics and/or recovery capabilities for networked platforms. With Intel AMT, IT
organizations can easily get accurate platform information, and can perform remote
updating, diagnostics, debugging and repair of a system, regardless of the state of the
operating system and the power state of the system.
NOTE
�
Software with AMT capability is required to take advantage of Intel AMT platform
management capabilities.
The key features of Intel AMT include:
• Secure Out of Band (OOB) system management that allows remote management
of PCs regardless of system power or operating system state.
• Remote troubleshooting and recovery that can significantly reduce desk-side visits
and potentially increasing efficiency of IT technical staff.
• Proactive alerting that decreases downtime and minimizes time to repair.
37
Intel Desktop Board DQ965GF Technical Product Specification
• Third party non-volatile storage that prevents users from removing critical
inventory, remote control, or virus protection agents.
• Remote hardware and software asset tracking that eliminates time-consuming
manual inventory tracking, which also reduces asset accounting costs.
• System Defense Feature - an Intel AMT feature for stopping the propagation of
worms and viruses through the use of programmable packet filters in the
integrated LAN controller. The packet filters inspect all incoming and all outgoing
packets and determine whether to block or pass the packets as configured. There
is no indication to the host that a packet has been blocked or accepted.
For information about Refer to
Intel Active Management http://www.intel.com/technology/manage/iamt/index.htm
Technology
1.10.5 Alert Standard Format (ASF) 2.0 Support
The board provides the following ASF support for PCI Express x1 bus add-in LAN cards
and PCI Conventional bus add-in LAN cards:
• Monitoring of system firmware progress events, including:
⎯ BIOS present
⎯ Primary processor initialization
⎯ Memory initialization
⎯ Video initialization
⎯ PCI resource configuration
⎯ Hard-disk initialization
⎯ User authentication
⎯ Starting operating system boot process
• Monitoring of system firmware error events, including:
⎯ Memory missing
⎯ Memory failure
⎯ No video device
⎯ Keyboard failure
⎯ Hard-disk failure
⎯ No boot media
• Boot options to boot from different types of boot devices
• Reset, shutdown, power cycle, and power up options
• LAN Subsystem Software
LAN software and drivers are available from Intel’s World Wide Web site.
38
Product Description
1.11 Hardware Management Subsystem
The hardware management features enable the board to be compatible with the Wired
for Management (WfM) specification. The board has several hardware management
features, including the following:
• Fan monitoring and control
• Thermal and voltage monitoring
• Chassis intrusion detection
1.11.1 Hardware Monitoring and Fan Control
The features of the hardware monitoring and fan control include:
• Intel Quiet System Technology, delivering acoustically-optimized thermal
management
• Fan speed control controllers and sensors integrated into the ICH8DO
• Four thermal sensors (processor, 82Q965 GMCH, 82801HO ICH8DO, and a remote
thermal sensor)
• Power supply monitoring of five voltages (+5 V, +12 V, +3.3 VSB, +1.25 V, and
+VCCP) to detect levels above or below acceptable values
• Thermally monitored closed-loop fan control, for all three fans, that can adjust the
fan speed or switch the fans on or off as needed
1.11.2 Fan Monitoring
Fan monitoring can be implemented using Intel Desktop Utilities or third-party
software.
For information about Refer to
The functions of the fan headers Section 1.12.2.2, page 44
1.11.3 Chassis Intrusion and Detection
The board supports a chassis security feature that detects if the chassis cover is
removed. The security feature uses a mechanical switch on the chassis that attaches
to the chassis intrusion header. When the chassis cover is removed, the mechanical
switch is in the closed position.
For information about Refer to
The location of the chassis intrusion header Figure 16, page 58
39
Intel Desktop Board DQ965GF Technical Product Specification
1.11.4 Thermal Monitoring
Figure 12 shows the locations of the thermal sensors and fan headers.
G
A
B
E
C F D
OM18441
Item Description
A Thermal diode, located on processor die
B Thermal diode, located on the GMCH die
C Thermal diode, located on the ICH8DO die
D Remote thermal sensor
E Processor fan
F Front chassis fan
G Rear chassis fan
Figure 12. Thermal Sensors and Fan Headers
40
Product Description
1.12 Power Management
Power management is implemented at several levels, including:
• Software support through Advanced Configuration and Power Interface (ACPI)
• Hardware support:
⎯ Power connector
⎯ Fan headers
⎯ LAN wake capabilities
⎯ Instantly Available PC technology
⎯ Resume on Ring
⎯ Wake from USB
⎯ Wake from PS/2 devices
⎯ Power Management Event signal (PME#) wake-up support
1.12.1 ACPI
ACPI gives the operating system direct control over the power management and Plug
and Play functions of a computer. The use of ACPI with the board requires an
operating system that provides full ACPI support. ACPI features include:
• Plug and Play (including bus and device enumeration)
• Power management control of individual devices, add-in boards (some add-in
boards may require an ACPI-aware driver), video displays, and hard disk drives
• Methods for achieving less than 15-watt system operation in the power-on/standby
sleeping state
• A Soft-off feature that enables the operating system to power-off the computer
• Support for multiple wake-up events (see Table 10 on page 43)
• Support for a front panel power and sleep mode switch
Table 8 lists the system states based on how long the power switch is pressed,
depending on how ACPI is configured with an ACPI-aware operating system.
Table 8. Effects of Pressing the Power Switch
If the system is in this …and the power switch
state… is pressed for …the system enters this state
Off Less than four seconds Power-on
(ACPI G2/G5 – Soft off) (ACPI G0 – working state)
On Less than four seconds Soft-off/Standby
(ACPI G0 – working state) (ACPI G1 – sleeping state)
On More than four seconds Fail safe power-off
(ACPI G0 – working state) (ACPI G2/G5 – Soft off)
Sleep Less than four seconds Wake-up
(ACPI G1 – sleeping state) (ACPI G0 – working state)
Sleep More than four seconds Power-off
(ACPI G1 – sleeping state) (ACPI G2/G5 – Soft off)
41
Intel Desktop Board DQ965GF Technical Product Specification
1.12.1.1 System States and Power States
Under ACPI, the operating system directs all system and device power state
transitions. The operating system puts devices in and out of low-power states based
on user preferences and knowledge of how devices are being used by applications.
Devices that are not being used can be turned off. The operating system uses
information from applications and user settings to put the system as a whole into a
low-power state.
Table 9 lists the power states supported by the board along with the associated
system power targets. See the ACPI specification for a complete description of the
various system and power states.
Table 9. Power States and Targeted System Power
Global Processor Targeted System
(Note 1)
States Sleeping States States Device States Power
G0 – working S0 – working C0 – working D0 – working Full power > 30 W
state state.
G1 – sleeping N/A C1 – stop D1, D2, D3 – 5 W < power < 52.5 W
state grant device
specification
specific.
(Note 2)
G1 – sleeping S3 – Suspend to No power D3 – no power Power < 5 W
state RAM. Context except for
saved to RAM. wake-up logic.
(Note 2)
G1 – sleeping S4 – Suspend to No power D3 – no power Power < 5 W
state disk. Context except for
saved to disk. wake-up logic.
(Note 2)
G2/S5 S5 – Soft off. No power D3 – no power Power < 5 W
Context not saved. except for
Cold boot is wake-up logic.
required.
G3 – No power to the No power D3 – no power for No power to the system.
mechanical off. system. wake-up logic, Service can be performed
AC power is except when safely.
disconnected provided by
from the battery or
computer. external source.
Notes:
1. Total system power is dependent on the system configuration, including add-in boards and peripherals
powered by the system chassis’ power supply.
2. Dependent on the standby power consumption of wake-up devices used in the system.
42
Product Description
1.12.1.2 Two-Watt Standby
In 2001, the U.S. government issued an executive order requiring a reduction in
power for appliances and personal computers. This board meets that requirement by
operating at 1.5 W (or less) in S5 (Standby) mode. Two-Watt operation applies only
to the S5 state when the computer is turned off, but still connected to AC power.
Two-Watt operation does not apply to the S3 (Suspend to RAM) or S4 (Suspend to
disk) states.
Newer energy-efficient power supplies using less than 0.5 W (in Standby mode) may
also be needed to achieve this goal.
1.12.1.3 Wake-up Devices and Events
Table 10 lists the devices or specific events that can wake the computer from specific
states.
Table 10. Wake-up Devices and Events
These devices/events can wake up the computer… …from this state
(Note)
LAN S3, S4, S5
(Note)
PME# signal S3, S4, S5
Power switch S3, S4, S5
PS/2 devices S3
RTC alarm S3, S4, S5
Serial port S3
USB S3
WAKE# signal S3, S4, S5
Note: For LAN and PME# signal, S5 is disabled by default in the BIOS Setup program. Setting this option to
Power On will enable a wake-up event from LAN in the S5 state.
NOTE
�
The use of these wake-up events from an ACPI state requires an operating system
that provides full ACPI support. In addition, software, drivers, and peripherals must
fully support ACPI wake events.
1.12.2 Hardware Support
CAUTION
Ensure that the power supply provides adequate +5 V standby current if LAN wake
capabilities and Instantly Available PC technology features are used. Failure to do so
can damage the power supply. The total amount of standby current required depends
on the wake devices supported and manufacturing options.
The board provides several power management hardware features, including:
• Power connector
• Fan headers
43
Intel Desktop Board DQ965GF Technical Product Specification
• LAN wake capabilities
• Instantly Available PC technology
• Resume on Ring
• Wake from USB
• Wake from PS/2 keyboard
• PME# signal wake-up support
• WAKE# signal wake-up support
LAN wake capabilities and Instantly Available PC technology require power from the
+5 V standby line.
Resume on Ring enables telephony devices to access the computer when it is in a
power-managed state. The method used depends on the type of telephony device
(external or internal).
NOTE
�
The use of Resume on Ring and Wake from USB technologies from an ACPI state
requires an operating system that provides full ACPI support.
1.12.2.1 Power Connector
ATX12V-compliant power supplies can turn off the system power through system
control. When an ACPI-enabled system receives the correct command, the power
supply removes all non-standby voltages.
When resuming from an AC power failure, the computer returns to the power state it
was in before power was interrupted (on or off). The computer’s response can be set
using the Last Power State feature in the BIOS Setup program’s Boot menu.
For information about Refer to
The location of the main power connector Figure 16, page 58
The signal names of the main power connector Table 26, page 63
1.12.2.2 Fan Headers
The function/operation of the fan headers is as follows:
• The fans are on when the board is in the S0 state.
• The fans are off when the board is off or in the S3, S4, or S5 state.
• Each fan header is wired to a fan tachometer input of the hardware monitoring and
fan control device.
• All fan headers support closed-loop fan control that can adjust the fan speed or
switch the fan on or off as needed.
• All fan headers have a +12 V DC connection.
For information about Refer to
The locations of the fan headers and thermal sensors Figure 12, page 40
The signal names of the processor fan header Table 23, page 61
The signal names of the chassis fan headers Table 22, page 60
44
Product Description
1.12.2.3 LAN Wake Capabilities
CAUTION
For LAN wake capabilities, the +5 V standby line from the power supply must be
capable of providing adequate +5 V standby current. Failure to provide adequate
standby current when implementing LAN wake capabilities can damage the power
supply.
LAN wake capabilities enable remote wake-up of the computer through a network.
The LAN subsystem PCI bus network adapter monitors network traffic at the Media
Independent Interface. Upon detecting a Magic Packet* frame, the LAN subsystem
asserts a wake-up signal that powers up the computer. Depending on the LAN
implementation, the board supports LAN wake capabilities with ACPI in the following
ways:
• The PCI Express WAKE# signal
• The PCI bus PME# signal for PCI 2.3 compliant LAN designs
• The onboard LAN subsystem
1.12.2.4 Instantly Available PC Technology
CAUTION
For Instantly Available PC technology, the +5 V standby line from the power supply
must be capable of providing adequate +5 V standby current. Failure to provide
adequate standby current when implementing Instantly Available PC technology can
damage the power supply.
Instantly Available PC technology enables the board to enter the ACPI S3 (Suspend-to-
RAM) sleep-state. While in the S3 sleep-state, the computer will appear to be off (the
power supply is off, and the front panel LED is amber if dual colored, or off if single
colored.) When signaled by a wake-up device or event, the system quickly returns to
its last known wake state. Table 10 on page 43 lists the devices and events that can
wake the computer from the S3 state.
The board supports the PCI Bus Power Management Interface Specification. Add-in
boards that also support this specification can participate in power management and
can be used to wake the computer.
The use of Instantly Available PC technology requires operating system support and
PCI 2.3 compliant add-in cards and drivers.
1.12.2.5 Resume on Ring
The operation of Resume on Ring can be summarized as follows:
• Resumes operation from ACPI S3 state
• Detects incoming call similarly for external and internal modems
• Requires modem interrupt be unmasked for correct operation
45
Intel Desktop Board DQ965GF Technical Product Specification
1.12.2.6 Wake from USB
USB bus activity wakes the computer from ACPI S3 state.
NOTE
�
Wake from USB requires the use of a USB peripheral that supports Wake from USB.
1.12.2.7 Wake from PS/2 Devices
PS/2 device activity wakes the computer from an ACPI S3 state.
1.12.2.8 PME# Signal Wake-up Support
When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI
S3, S4, or S5 state (with Wake on PME enabled in BIOS).
1.12.2.9 WAKE# Signal Wake-up Support
When the WAKE# signal on the PCI Express bus is asserted, the computer wakes from
an ACPI S3, S4, or S5 state.
46
Product Description
1.12.2.10 Onboard Power Indicator LEDs
CAUTION
If AC power has been switched off and the +5 V standby power indicator is still lit,
disconnect the power cord before installing or removing any devices connected to the
board. Failure to do so could damage the board and any attached devices.
CAUTION
When connected to AC power, the memory slots on the board will be powered on and
in use. A red LED (shown in Figure 13), located near the memory slots, will be lit if
the memory slots are powered.
Installing or removing memory while the memory slots are powered may result in
damage to both the memory and the board. Before installing or removing memory,
disconnect the computer from AC power and wait for the LED to go off before
proceeding.
Figure 13 shows the location of the two power indicators:
• +5 V standby power indicator LED. The +5 V standby power indicator LED is lit
when there is standby power still present even when the computer appears to be
off.
• Memory power indicator LED. The memory power indicator LED is lit when there is
power to the memory slots.
A
B
OM18490
Item Description LED color
A +5 V standby power indicator LED Green
B Memory power indicator LED Red
Figure 13. Location of the Onboard Power Indicator LEDs
47
Intel Desktop Board DQ965GF Technical Product Specification
1.13 Trusted Platform Module (TPM)
The TPM 1.2 component is specifically designed to enhance platform security above-
and-beyond the capabilities of today’s software by providing a protected space for key
operations and other security critical tasks. Using both hardware and software, the
TPM protects encryption and signature keys at their most vulnerable stages—
operations when the keys are being used unencrypted in plain-text form. The TPM is
specifically designed to shield unencrypted keys and platform authentication
information from software-based attacks.
For information about Refer to
TPM 1.2 http://www.intel.com/design/motherbd/gf/
48
2 Technical Reference
What This Chapter Contains
2.1 Memory Map................................................................................... 49
2.2 DMA Channels................................................................................. 51
2.3 Fixed I/O Map................................................................................. 52
2.4 PCI Configuration Space Map ............................................................ 53
2.5 Interrupts ...................................................................................... 54
2.6 PCI Interrupt Routing Map ................................................................ 55
2.7 Connectors and Headers................................................................... 56
2.8 Jumper Block.................................................................................. 67
2.9 Mechanical Considerations ................................................................ 68
2.10 Electrical Considerations................................................................... 73
2.11 Thermal Considerations.................................................................... 75
2.12 Reliability ....................................................................................... 77
2.13 Environmental ................................................................................ 78
2.1 Memory Map
2.1.1 Addressable Memory
The board utilizes 8 GB of addressable system memory. Typically the address space
that is allocated for PCI Conventional bus add-in cards, PCI Express configuration
space, BIOS (SPI Flash), and chipset overhead resides above the top of DRAM (total
system memory). On a system that has 8 GB of system memory installed, it is not
possible to use all of the installed memory due to system address space being
allocated for other system critical functions. These functions include the following:
• BIOS/ SPI Flash (16 Mbits)
• Local APIC (19 MB)
• Digital Media Interface (40 MB)
• Front side bus interrupts (17 MB)
• PCI Express configuration space (256 MB)
• GMCH base address registers, internal graphics ranges, PCI Express ports (up to
512 MB)
• Memory-mapped I/O that is dynamically allocated for PCI Conventional and PCI
Express add-in cards
• Manageability Engine support (6 MB)
• Base graphics memory support (1 MB or 8 MB)
49
Intel Desktop Board DQ965GF Technical Product Specification
The amount of installed memory that can be used will vary based on add-in cards and
BIOS settings. Figure 14 shows a schematic of the system memory map. All installed
system memory can be used when there is no overlap of system addresses.
8 GB
Top of System Address Space
Upper
4 GB of
address
space
FLASH
APIC
~20 MB
Reserved
PCI Memory Range -
contains PCI, chipsets,
1 MB
Direct Media Interface
0FFFFFH
(DMI), and ICH ranges Upper BIOS
(approximately 750 MB)
area (64 KB)
0F0000H
960 KB
0EFFFFH
Lower BIOS
area
Top of usable
(64 KB;
DRAM (memory
16 KB x 4)
visible to the 0E0000H
operating system) 896 KB
0DFFFFH
Add-in Card
BIOS and
Buffer area
(128 KB;
16 KB x 8)
0C0000H
DRAM 768 KB
0BFFFFH
Range
Standard PCI/
ISA Video
Memory (SMM
1 MB
Memory)
128 KB
640 KB
0A0000H
DOS 640 KB
09FFFFH
Compatibility
DOS area
Memory
(640 KB)
00000H
0 MB 0 KB
OM18311
Figure 14. Detailed System Memory Address Map
50
Technical Reference
Table 11 lists the system memory map.
Table 11. System Memory Map
Address Range Address Range
(decimal) (hex) Size Description
1024 K - 8388608 K 100000 - 1FFFFFFFF 8191 MB Extended memory
960 K - 1024 K F0000 - FFFFF 64 KB Runtime BIOS
896 K - 960 K E0000 - EFFFF 64 KB Reserved
800 K - 896 K C8000 - DFFFF 96 KB Potential available high DOS
memory (open to the PCI bus).
Dependent on video adapter used.
640 K - 800 K A0000 - C7FFF 160 KB Video memory and BIOS
639 K - 640 K 9FC00 - 9FFFF 1 KB Extended BIOS data (movable by
memory manager software)
512 K - 639 K 80000 - 9FBFF 127 KB Extended conventional memory
0 K - 512 K 00000 - 7FFFF 512 KB Conventional memory
2.2 DMA Channels
Table 12. DMA Channels
DMA Channel Number Data Width System Resource
0 8 or 16 bits Open
1 8 or 16 bits Parallel port
2 8 or 16 bits Diskette drive
3 8 or 16 bits Parallel port (for ECP or EPP)
4 8 or 16 bits DMA controller
5 16 bits Open
6 16 bits Open
7 16 bits Open
51
Intel Desktop Board DQ965GF Technical Product Specification
2.3 Fixed I/O Map
Table 13. I/O Map
Address (hex) Size Description
0000 - 00FF 256 bytes Used by the Desktop Board DQ965GF. Refer to the ICH8DO
data sheet for dynamic addressing information.
01F0 - 01F7 8 bytes Primary Parallel ATE IDE channel command block
(Note 1)
0228 - 022F 8 bytes LPT3
(Note 1)
0278 - 027F 8 bytes LPT2
(Note 1)
02E8 - 02EF 8 bytes COM4
(Note 1)
02F8 - 02FF 8 bytes COM2
0378 - 037F 8 bytes LPT1
03B0 - 03BB 12 bytes Intel 82Q965 GMCH
03C0 - 03DF 32 bytes Intel 82Q965 GMCH
03E8 - 03EF 8 bytes COM3
03F0 - 03F5 6 bytes Diskette channel
03F4 - 03F7 4 bytes Primary Parallel ATA IDE channel control block
03F8 - 03FF 8 bytes COM1
04D0 - 04D1 2 bytes Edge/level triggered PIC
LPTn + 400 8 bytes ECP port, LPTn base address + 400h
(Note 2)
0CF8 - 0CFB 4 bytes PCI configuration address register
(Note 3)
0CF9 1 byte Reset control register
0CFC - 0CFF 4 bytes PCI configuration data register
FFA0 - FFA7 8 bytes Primary Parallel ATA IDE bus master registers
Notes:
1. Default, but can be changed to another address range
2. Dword access only
3. Byte access only
� NOTE
Some additional I/O addresses are not available due to ICH8DO address aliasing. The
ICH8DO data sheet provides more information on address aliasing.
For information about Refer to
Obtaining the ICH8DO data sheet Section 1.2 on page 17
52
Technical Reference
2.4 PCI Configuration Space Map
Table 14. PCI Configuration Space Map
Bus Device Function
Number (hex) Number (hex) Number (hex) Description
00 00 00 Memory controller of Intel 82Q965 component
(Note 1)
00 01 00 PCI Express x16 graphics port
00 02 00 Integrated graphics controller
00 1B 00 Intel High Definition Audio Controller
00 1C 00 PCI Express port 1
00 1C 01 PCI Express port 2
00 1C 02 PCI Express port 3
00 1C 03 PCI Express port 4
00 1C 04 PCI Express port 5
00 1D 00 USB UHCI controller 1
00 1D 01 USB UHCI controller 2
00 1D 02 USB UHCI controller 3
00 1D 00 USB UHCI controller 4
00 1A 01 USB UHCI controller 5
00 1D 07 EHCI controller #1
00 1A 07 EHCI controller #2
00 1E 00 PCI bridge
00 1F 00 PCI controller
00 1F 01 Parallel ATA IDE controller
00 1F 02 Serial ATA controller #1
00 1F 05 Serial ATA controller #2
00 1F 03 SMBus controller
00 19 00 Gigabit LAN controller
(Note 2)
00 00 PCI Conventional bus connector 1
(Note 2)
01 00 PCI Conventional bus connector 2
(Note 2)
03 00 IEEE-1394a controller (optional)
(Note 1)
01 00 00 PCI Express video controller
Notes:
1. Present only when a PCI Express x16 graphics card is installed.
2. Bus number is dynamic and can change based on add-in cards used.
53
Intel Desktop Board DQ965GF Technical Product Specification
2.5 Interrupts
The interrupts can be routed through either the Programmable Interrupt Controller
(PIC) or the Advanced Programmable Interrupt Controller (APIC) portion of the
ICH8DO component. The PIC is supported in Windows 98 SE and Windows ME and
uses the first 16 interrupts. The APIC is supported in Windows 2000 and Windows XP
and supports a total of 24 interrupts.
Table 15. Interrupts
IRQ System Resource
NMI I/O channel check
0 Reserved, interval timer
1 Reserved, keyboard buffer full
2 Reserved, cascade interrupt from slave PIC
(Note 1)
3 COM2
(Note 1)
4 COM1
5 LPT2 (Plug and Play option)/User available
6 Diskette drive
(Note 1)
7 LPT1
8 Real-time clock
9 Reserved for ICH8DO system management bus
10 User available
11 User available
12 Onboard mouse port (if present, else user available)
13 Reserved, math coprocessor
14 Primary IDE/Serial ATA (if present, else user available)
15 Secondary IDE/Serial ATA (if present, else user available)
(Note 2)
16 USB UHCI controller 1 / USB UHCI controller 4 (through PIRQA)
(Note 2)
17 AC ‘97 audio/modem/User available (through PIRQB)
(Note 2)
18 ICH8DO USB controller 3 (through PIRQC)
(Note 2)
19 ICH8DO USB controller 2 (through PIRQD)
(Note 2)
20 ICH8DO LAN (through PIRQE)
(Note 2)
21 User available (through PIRQF)
(Note 2)
22 User available (through PIRQG)
(Note 2)
23 ICH8DO USB 2.0 EHCI controller/User available (through PIRQH)
Notes:
1. Default, but can be changed to another IRQ.
2. Available in APIC mode only.
54
Technical Reference
2.6 PCI Interrupt Routing Map
This section describes interrupt sharing and how the interrupt signals are connected
between the PCI bus connectors and onboard PCI devices. The PCI specification
specifies how interrupts can be shared between devices attached to the PCI bus. In
most cases, the small amount of latency added by interrupt sharing does not affect
the operation or throughput of the devices. In some special cases where maximum
performance is needed from a device, a PCI device should not share an interrupt with
other PCI devices. Use the following information to avoid sharing an interrupt with a
PCI add-in card.
PCI devices are categorized as follows to specify their interrupt grouping:
• INTA: By default, all add-in cards that require only one interrupt are in this
category. For almost all cards that require more than one interrupt, the first
interrupt on the card is also classified as INTA.
• INTB: Generally, the second interrupt on add-in cards that require two or more
interrupts is classified as INTB. (This is not an absolute requirement.)
• INTC and INTD: Generally, a third interrupt on add-in cards is classified as INTC
and a fourth interrupt is classified as INTD.
The ICH8DO has eight Programmable Interrupt Request (PIRQ) input signals. All PCI
interrupt sources either onboard or from a PCI add-in card connect to one of these
PIRQ signals. Some PCI interrupt sources are electrically tied together on the board
and therefore share the same interrupt. Table 16 shows an example of how the
PIRQ signals are routed.
Table 16. PCI Interrupt Routing Map
ICH8DO PIRQ Signal Name
PCI Interrupt Source
PIRQA PIRQB PIRQC PIRQD PIRQE PIRQF PIRQG PIRQH
ICH8DO LAN INTA
PCI bus connector 1 INTD INTA INTB INTC
PCI bus connector 2 INTC INTB INTA INTD
IEEE-1394a controller INTA
NOTE
�
In PIC mode, the ICH8DO can connect each PIRQ line internally to one of the IRQ
signals (3, 4, 5, 6, 7, 9, 10, 11, 12, 14, and 15). Typically, a device that does not
share a PIRQ line will have a unique interrupt. However, in certain interrupt-
constrained situations, it is possible for two or more of the PIRQ lines to be connected
to the same IRQ signal. Refer to Table 15 for the allocation of PIRQ lines to IRQ
signals in APIC mode.
PCI interrupt assignments to USB ports, Serial ATA ports, and PCI Express ports are
dynamic.
55
Intel Desktop Board DQ965GF Technical Product Specification
2.7 Connectors and Headers
CAUTION
Only the following connectors have overcurrent protection: Back panel and front panel
USB, PS/2, and VGA.
The other internal connectors/headers are not overcurrent protected and should
connect only to devices inside the computer’s chassis, such as fans and internal
peripherals. Do not use these connectors/headers to power devices external to the
computer’s chassis. A fault in the load presented by the external devices could cause
damage to the computer, the power cable, and the external devices themselves.
This section describes the board’s connectors and headers. The connectors and
headers can be divided into these groups:
• Back panel I/O connectors (see page 57)
• Component-side connectors and headers (see page 58)
56
Technical Reference
2.7.1 Back Panel Connectors
Figure 15 shows the locations of the back panel connectors.
A C F G
I
J K
B D E H
OM18439
Item Description
A PS/2 mouse port (optional)
B PS/2 keyboard port (optional)
C Parallel port
D VGA port
E IEEE-1394a (optional)
F USB ports [4]
G LAN
H USB ports [2]
I Audio line in
J Mic in
K Audio line out
Figure 15. Back Panel Connectors
NOTE
�
The back panel audio line out connector is designed to power headphones or amplified
speakers only. Poor audio quality occurs if passive (non-amplified) speakers are
connected to this output.
57
Intel Desktop Board DQ965GF Technical Product Specification
2.7.2 Component-side Connectors and Headers
Figure 16 shows the locations of the component-side connectors and headers.
A B C D E
1 2
2
1
F
4
9 10
16
1
G
U
1
2
T
10
S
2 1
1
2
R
H
10
1
1 2
Q
10
8
I
1
9
1
24
2
9
1
1
1
2 1
O N ML J
P K
OM18442
Figure 16. Component-side Connectors and Headers
58
Technical Reference
Table 17 lists the component-side connectors and headers identified in Figure 16.
Table 17. Component-side Connectors and Headers Shown in Figure 16
Item/callout
from Figure 16 Description
A IEEE-1394a front panel header (optional)
B Front panel audio header
C PCI Conventional bus add-in card connector 1
D PCI Express x1 connector
E PCI Express x16 connector
F Processor core power connector
G Rear chassis fan header
H Processor fan header
I Serial port header
J Diskette drive connector
K Main Power connector
L Front chassis fan header
M Chassis intrusion header
N Auxiliary front panel power LED header
O Front panel header
P Serial ATA connectors [6]
Q Front panel USB header
R Front panel USB header
S Parallel ATE IDE connector
T PCI Conventional bus add-in card connector 2
U High Definition Audio header
59
Intel Desktop Board DQ965GF Technical Product Specification
Table 18. High Definition Audio Link Header
Pin Signal Name Pin Signal Name
1 BCLK 2 Ground
3 RST 4 3.3 V/1.5 V I/O
5 SYNC 6 Ground
7 SDO 8 3.3V_CORE
9 SDI 10 +12 V
11 No connect 12 Key (no pin)
13 No connect 14 3.3 V/1.5V STBY
15 No connect 16 Ground
Table 19. Serial ATA Connectors
Pin Signal Name
1 Ground
2 TXP
3 TXN
4 Ground
5 RXN
6 RXP
7 Ground
Table 20. Chassis Intrusion Header
Pin Signal Name
1 Intruder
2 Ground
Table 21. Serial Port Header
Pin Signal Name Pin Signal Name
1 DCD 2 RXD#
3 TXD# 4 DTR
5 Ground 6 DSR
7 RTS 8 CTS
9 RI 10 Key (no pin)
Table 22. Front and Rear Chassis Fan Headers
Pin Signal Name
1 Control
2 +12 V
3 Tach
60
Technical Reference
Table 23. Processor Fan Header
Pin Signal Name
1 Ground
2 +12 V
3 FAN_TACH
4 FAN_CONTROL
Table 24. Front Panel Audio Header
Pin Signal Name Pin Signal Name
1 [Port 1] Left channel 2 Ground
3 [Port 1] Right channel 4 PRESENCE# (Dongle present)
5 [Port 2] Right channel 6 [Port 1] SENSE_RETURN
7 SENSE_SEND (Jack detection) 8 Key (no pin)
9 [Port 2] Left channel 10 [Port 2] SENSE_RETURN
61
Intel Desktop Board DQ965GF Technical Product Specification
2.7.2.1 Add-in Card Connectors
The board has the following add-in card connectors:
• PCI Express x16: one connector supporting simultaneous transfer speeds up to
4 GBytes/sec of peak bandwidth per direction and up to 8 GBytes/sec concurrent
bandwidth
• PCI Express x1: one PCI Express x1 connector. The x1 interface supports
simultaneous transfer speeds up to 250 Mbytes/sec of peak bandwidth per
direction and up to 500 MBytes/sec concurrent bandwidth
• PCI Conventional (rev 2.3 compliant) bus: two PCI Conventional bus add-in card
connectors. The SMBus is routed to PCI Conventional bus connector 2 only. PCI
Conventional bus add-in cards with SMBus support can access sensor data and
other information residing on the board.
Note the following considerations for the PCI Conventional bus connectors:
• All of the PCI Conventional bus connectors are bus master capable.
• SMBus signals are routed to PCI Conventional bus connector 2. This enables PCI
Conventional bus add-in boards with SMBus support to access sensor data on the
board. The specific SMBus signals are as follows:
⎯ The SMBus clock line is connected to pin A40.
⎯ The SMBus data line is connected to pin A41.
62
Technical Reference
2.7.2.2 Power Supply Connectors
The board has the following power supply connectors:
• Main power – a 2 x 12 connector. This connector is compatible with 2 x 10
connectors previously used on Intel Desktop boards. The board supports the use
of ATX12V power supplies with either 2 x 10 or 2 x 12 main power cables. When
using a power supply with a 2 x 10 main power cable, attach that cable on the
rightmost pins of the main power connector, leaving pins 11, 12, 23, and
24 unconnected.
• Processor core power – a 2 x 2 connector. This connector provides power
directly to the processor voltage regulator and must always be used. Failure to do
so will prevent the board from booting.
Table 25. Processor Core Power Connector
Pin Signal Name Pin Signal Name
1 Ground 2 Ground
3 +12 V 4 +12 V
Table 26. Main Power Connector
Pin Signal Name Pin Signal Name
1 +3.3 V 13 +3.3 V
2 +3.3 V 14 -12 V
3 Ground 15 Ground
4 +5 V 16 PS-ON# (power supply remote on/off)
5 Ground 17 Ground
6 +5 V 18 Ground
7 Ground 19 Ground
8 PWRGD (Power Good) 20 No connect
9 +5 V (Standby) 21 +5 V
10 +12 V 22 +5 V
(Note) (Note)
11 +12 V 23 +5 V
(Note) (Note)
12 2 x 12 connector detect 24 Ground
Note: When using a 2 x 10 power supply cable, this pin will be unconnected.
63
Intel Desktop Board DQ965GF Technical Product Specification
2.7.2.3 Front Panel Header
This section describes the functions of the front panel header. Table 27 lists the signal
names of the front panel header. Figure 17 is a connection diagram for the front panel
header.
Table 27. Front Panel Header
In/ In/
Pin Signal Out Description Pin Signal Out Description
Hard Drive Activity LED Power LED
1 HD_PWR Out Hard disk LED pull-up 2 HDR_BLNK_ Out Front panel green
to +5 V GRN LED
3 HDA# Out Hard disk active LED 4 HDR_BLNK_ Out Front panel yellow
YEL LED
Reset Switch On/Off Switch
5 Ground Ground 6 FPBUT_IN In Power switch
7 FP_RESET# In Reset switch 8 Ground Ground
Power Not Connected
9 +5 V Power 10 N/C Not connected
+5 V DC
N/C
9
87
Power Reset
Switch Switch
65
4 3 -
Hard Drive
Activity LED
2 1
+
Dual- Single-
colored colored
Power LED Power LED
OM18331
Figure 17. Connection Diagram for Front Panel Header
2.7.2.3.1 Hard Drive Activity LED Header
Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is
being read from or written to a hard drive. Proper LED function requires one of the
following:
• A Serial ATA hard drive connected to an onboard Serial ATA connector
• A Parallel ATA IDE hard drive connected to an onboard Parallel ATA IDE connector
64
-
+
+
-
Technical Reference
2.7.2.3.2 Reset Switch Header
Pins 5 and 7 can be connected to a momentary single pole, single throw (SPST) type
switch that is normally open. When the switch is closed, the board resets and runs the
POST.
2.7.2.3.3 Power/Sleep LED Header
Pins 2 and 4 can be connected to a one- or two-color LED. Table 28 shows the
possible states for a one-color LED. Table 29 shows the possible states for a two-color
LED.
Table 28. States for a One-Color Power LED
LED State Description
Off Power off/sleeping
Steady Green Running
Table 29. States for a Two-Color Power LED
LED State Description
Off Power off
Steady Green Running
Steady Yellow Sleeping
� NOTE
The colors listed in Table 28 and Table 29 are suggested colors only. Actual LED
colors are product- or customer-specific.
2.7.2.3.4 Power Switch Header
Pins 6 and 8 can be connected to a front panel momentary-contact power switch. The
switch must pull the SW_ON# pin to ground for at least 50 ms to signal the power
supply to switch on or off. (The time requirement is due to internal debounce circuitry
on the board.) At least two seconds must pass before the power supply will recognize
another on/off signal.
2.7.2.4 Auxiliary Front Panel Power LED Header
Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel
header.
Table 30. Auxiliary Front Panel Power LED Header
Pin Signal Name In/Out Description
1 HDR_BLNK_GRN Out Front panel green LED
2 Not connected
3 HDR_BLNK_YEL Out Front panel yellow LED
65
Intel Desktop Board DQ965GF Technical Product Specification
2.7.2.5 Front Panel USB Headers
Figure 18 is a connection diagram for the front panel USB headers.
INTEGRATOR’S NOTES
#
• The +5 V DC power on the front panel USB headers is fused.
• Use only a front panel USB connector that conforms to the USB 2.0 specification
for high-speed USB devices.
Power Power
1 2
(+5 V DC) (+5 V DC)
D- D-
One One
3 4
USB USB
Port Port
D+ D+
5 6
7 Ground
8
Ground
10
Key (no pin)
No connect
OM18317
Figure 18. Connection Diagram for Front Panel USB Headers
2.7.2.6 Front Panel IEEE-1394a Header (Optional)
Figure 19 is a connection diagram for the optional IEEE-1394a header.
10
Ground
Key (no pin)
+12 V DC
87 +12 V DC
TPB-
65 TPB+
Ground Ground
4 3
TPA-
2 1 TPA+
OM18332
Figure 19. Connection Diagram for IEEE-1394a Header
INTEGRATOR’S NOTES
#
• The +12 V DC power on the IEEE-1394a header is fused.
• The IEEE-1394a header provides one IEEE-1394a port.
66
Technical Reference
2.8 Jumper Block
CAUTION
Do not move the jumper with the power on. Always turn off the power and unplug the
power cord from the computer before changing a jumper setting. Otherwise, the
board could be damaged.
Figure 20 shows the location of the jumper block. The jumper determines the BIOS
Setup program’s mode. Table 31 lists the jumper settings for the three modes:
normal, configure, and recovery. When the jumper is set to configure mode and the
computer is powered-up, the BIOS compares the processor version and the microcode
version in the BIOS and reports if the two match.
32 1
OM18445
Figure 20. Location of the Jumper Block
Table 31. BIOS Setup Configuration Jumper Settings
Function/Mode Jumper Setting Configuration
The BIOS uses current configuration information and
Normal 1-2
passwords for booting.
32 1
After the POST runs, Setup runs automatically. The
Configure 2-3
maintenance menu is displayed.
32 1
The BIOS attempts to recover the BIOS configuration. See
Recovery None
Section 3.7 for more information on BIOS recovery.
32 1
67
Intel Desktop Board DQ965GF Technical Product Specification
2.9 Mechanical Considerations
2.9.1 Form Factor
The board is designed to fit into an ATX- or microATX-form-factor chassis. Figure 21
illustrates the mechanical form factor of the board. Dimensions are given in inches
[millimeters]. The outer dimensions are 9.60 inches by 9.60 inches [243.84
millimeters by 243.84 millimeters].
1.800
[45.72]
6.500
[165.10]
6.100
[154.94]
5.200
[132.08]
0.00
2.850
[72.39]
3.100
6.450
[78.74]
[163.83]
2.600 0.00
3.150 6.200
[66.04]
[157.48]
[80.01]
OM18444
Figure 21. Board Dimensions
68
Technical Reference
2.9.2 I/O Shield
The back panel I/O shield for the board must meet specific dimension and material
requirements. Systems based on this board need the back panel I/O shield to pass
certification testing. Table 32 lists the compatible I/O shield design drawings.
Table 32. Compatible I/O shields
IEEE-1394a connector PS/2 connectors on For I/O shield
on back panel? back panel? dimensions, see…
Yes Yes Figure 22
Yes No Figure 23
No No Figure 24
Dimensions are given in inches [millimeters]. The figures indicate the position of each
cutout. Additional design considerations for I/O shields relative to chassis
requirements are described in the ATX specification.
NOTE
�
The I/O shield drawings are for reference only. I/O shields compliant with the ATX
specification are available from Intel.
69
Intel Desktop Board DQ965GF Technical Product Specification
0.063 – 0.005
[1.6 – 0.12]
0.787 – 0.010 TYP
[20 – 0.254]
0.061 REF
6.268 – 0.005
[1.55]
[159.2 – 0.12]
6.390 REF
0.039 [162.3]
[1]
8X R0.5 MIN
0.884
A
[22.45]
A
0.276
[7.01]
0.00
[0.00]
0.465
[11.81]
0.465
[11.81]
0.558
0.474
[14.17]
[12.04]
1.890
[48]
1.768 – 0.005
[44.9 – 0.12]
0.591 – 0.010
[15 – 0.25]
OM18446
Figure 22. I/O Shield Dimensions for Boards with IEEE-1394a and
PS/2 Connectors
70
0.00
[0.00]
0.326
[8.27]
0.780
[19.81]
1.927
[48.95]
3.288
[83.52]
3.822
[97.08]
4.573
[116.15]
5.783
[146.88]
Technical Reference
0.063 – 0.005
[1.6 – 0.12]
0.787 – 0.010 TYP
[20 – 0.254]
0.061 REF
6.268 – 0.005
[1.55]
[159.2 – 0.12]
6.390 REF
0.039 [162.3]
[1]
8X R0.5 MIN
0.884
A
[22.45]
A
0.276
[7.01]
0.00
[0.00]
0.465
[11.81]
0.474
[12.04]
0.558
[14.17]
1.890
[48]
1.768 – 0.005
[44.9 – 0.12]
0.591 – 0.010
[15 – 0.25]
OM18447
Figure 23. I/O Shield Dimensions for Boards without PS/2 Connectors
71
0.00
[0.00]
0.780
[19.81]
1.927
[48.95]
3.288
[83.52]
3.822
[97.08]
4.573
[116.15]
5.783
[146.88]
Intel Desktop Board DQ965GF Technical Product Specification
0.063 – 0.005
[1.6 – 0.12]
0.787 – 0.010 TYP
[20 – 0.254]
0.061 REF
6.268 – 0.005
[1.55]
[159.2 – 0.12]
6.390 REF
0.039 [162.3]
[1]
8X R0.5 MIN
0.884
A
[22.45]
A
0.276
[7.01]
0.00
[0.00]
0.465
[11.81]
0.474
[12.04]
0.558
[14.17]
1.890
[48]
1.768 – 0.005
[44.9 – 0.12]
0.591 – 0.010
[15 – 0.25]
OM18448
Figure 24. I/O Shield Dimensions for Boards without IEEE-1394a and
PS/2 Connectors
72
0.00
[0.00]
0.780
[19.81]
1.927
[48.95]
3.822
[97.08]
4.573
[116.15]
5.783
[146.88]
Technical Reference
2.10 Electrical Considerations
2.10.1 DC Loading
Table 33 lists the DC loading characteristics of the board. This data is based on a DC
analysis of all active components within the board that impact its power delivery
subsystems. The analysis does not include PCI add-in cards. Minimum values assume
a light load placed on the board that is similar to an environment with no applications
running and no USB current draw. Maximum values assume a load placed on the
board that is similar to a heavy gaming environment with a 500 mA current draw per
USB port. These calculations are not based on specific processor values or memory
configurations but are based on the minimum and maximum current draw possible
from the board’s power delivery subsystems to the processor, memory, and USB
ports.
Use the datasheets for add-in cards, such as PCI, to determine the overall system
power requirements. The selection of a power supply at the system level is dependent
on the system’s usage model and not necessarily tied to a particular processor speed.
Table 33. DC Loading Characteristics
DC Current at:
-12 V +12 V1 +12 V2 +5 V +3.3 v +5 VSB
Mode DC Power
(CPU)
Minimum 43.13 W 0.00 0.40 1.79 1.80 2.00 0.25 [S0]
loading 0.25 [S3]
Maximum 532.98 W 0.30 11.50 16.77 23.96 19.52 1.17 [S0]
loading 3.89 [S3]
2.10.2 Fan Header Current Capability
CAUTION
The processor fan must be connected to the processor fan header, not to a chassis fan
header. Connecting the processor fan to a chassis fan header may result in onboard
component damage that will halt fan operation.
Table 34 lists the current capability of the fan headers.
Table 34. Fan Header Current Capability
Fan Header Maximum Available Current
Processor fan 3.0 A
Front chassis fan 1.5 A
Rear chassis fan 1.5 A
73
Intel Desktop Board DQ965GF Technical Product Specification
2.10.3 Add-in Board Considerations
The board is designed to provide 2 A (average) of +5 V current for each add-in board.
The total +5 V current draw for add-in boards for a fully loaded board (all three
expansion slots and the PCI Express x16 connector filled) must not exceed 8 A.
2.10.4 Power Supply Considerations
CAUTION
The +5 V standby line from the power supply must be capable of providing adequate
+5 V standby current. Failure to do so can damage the power supply. The total
amount of standby current required depends on the wake devices supported and
manufacturing options.
System integrators should refer to the power usage values listed in Table 33 when
selecting a power supply for use with the board.
Additional power required will depend on configurations chosen by the integrator.
The power supply must comply with the indicated parameters of the ATX form factor
specification.
• The potential relation between 3.3 VDC and +5 VDC power rails
• The current capability of the +5 VSB line
• All timing parameters
• All voltage tolerances
74
Technical Reference
2.11 Thermal Considerations
CAUTION
Failure to ensure appropriate airflow may result in reduced performance of both the
processor and/or voltage regulator or, in some instances, damage to the board. For a
list of chassis that have been tested with Intel desktop boards please refer to the
following website:
http://developer.intel.com/design/motherbd/cooling.htm
All responsibility for determining the adequacy of any thermal or system design
remains solely with the reader. Intel makes no warranties or representations that
merely following the instructions presented in this document will result in a system
with adequate thermal performance.
CAUTION
Ensure that the ambient temperature does not exceed the board’s maximum operating
temperature. Failure to do so could cause components to exceed their maximum case
temperature and malfunction. For information about the maximum operating
temperature, see the environmental specifications in Section 2.13.
CAUTION
Ensure that proper airflow is maintained in the processor voltage regulator circuit.
Failure to do so may result in damage to the voltage regulator circuit. The processor
o
voltage regulator area (shown in Figure 25) can reach a temperature of up to 85 C in
an open chassis.
75
Intel Desktop Board DQ965GF Technical Product Specification
Figure 25 shows the locations of the localized high temperature zones.
A
B
C
D
OM18443
Item Description
A Processor voltage regulator area
B Processor
C Intel 82Q965 GMCH
D Intel 82801HO ICH8DO
Figure 25. Localized High Temperature Zones
76
Technical Reference
Table 35 provides maximum case temperatures for the board components that are
sensitive to thermal changes. The operating temperature, current load, or operating
frequency could affect case temperatures. Maximum case temperatures are important
when considering proper airflow to cool the board.
Table 35. Thermal Considerations for Components
Component Maximum Case Temperature
Processor For processor case temperature, see processor datasheets and
processor specification updates
o
Intel 82Q965 GMCH 97 C (under bias)
o
Intel 82801HO ICH8DO 92 C (under bias)
For information about Refer to
Processor datasheets and specification updates Section 1.2, page 17
2.12 Reliability
The Mean Time Between Failures (MTBF) prediction is calculated using component and
subassembly random failure rates. The calculation is based on the Bellcore Reliability
Prediction Procedure, TR-NWT-000332, Issue 4, September 1991. The MTBF
prediction is used to estimate repair rates and spare parts requirements.
The MTBF data is calculated from predicted data at 55 ºC. The Desktop Board
DQ965GF MTBF is 117,142 hours.
77
Intel Desktop Board DQ965GF Technical Product Specification
2.13 Environmental
Table 36 lists the environmental specifications for the board.
Table 36. Desktop Board DQ965GF Environmental Specifications
Parameter Specification
Temperature
Non-Operating -40 °C to +70 °C
Operating 0 °C to +55 °C
Shock
Unpackaged 50 g trapezoidal waveform
Velocity change of 170 inches/second²
Packaged Half sine 2 millisecond
Product weight (pounds) Free fall (inches) Velocity change
(inches/sec²)
<20 36 167
21-40 30 152
41-80 24 136
81-100 18 118
Vibration
Unpackaged 5 Hz to 20 Hz: 0.01 g² Hz sloping up to 0.02 g² Hz
20 Hz to 500 Hz: 0.02 g² Hz (flat)
Packaged 10 Hz to 40 Hz: 0.015 g² Hz (flat)
40 Hz to 500 Hz: 0.015 g² Hz sloping down to 0.00015 g² Hz
78
3 Overview of BIOS Features
What This Chapter Contains
3.1 Introduction ................................................................................... 79
3.2 BIOS Flash Memory Organization....................................................... 80
3.3 Resource Configuration .................................................................... 80
3.4 System Management BIOS (SMBIOS)................................................. 81
3.5 Legacy USB Support ........................................................................ 82
3.6 BIOS Updates ................................................................................. 82
3.7 BIOS Recovery................................................................................ 83
3.8 Boot Options................................................................................... 84
3.9 Adjusting Boot Speed....................................................................... 85
3.10 BIOS Security Features .................................................................... 86
3.1 Introduction
The board uses an Intel BIOS that is stored in the Serial Peripheral Interface Flash
Memory (SPI Flash) and can be updated using a disk-based program. The SPI Flash
contains the BIOS Setup program, POST, the PCI auto-configuration utility, and Plug
and Play support.
The BIOS displays a message during POST identifying the type of BIOS and a revision
code. The initial production BIOSs are identified as CO96510J.86A.
When the BIOS Setup configuration jumper is set to configure mode and the computer
is powered-up, the BIOS compares the CPU version and the microcode version in the
BIOS and reports if the two match.
The BIOS Setup program can be used to view and change the BIOS settings for the
computer. The BIOS Setup program is accessed by pressing the
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