INTEL DB43LD
Specifications
Additional Connectors
6 x Hi-Speed USB
Audio Codec
Realtek ALC662
Audio Output Type
Sound card
BIOS Features
ACPI 1.0b support, DMI 2.0 support, SMBIOS support
BIOS Type
Intel
Chipset Type
Intel B43 Express
Compliant Standards
High Definition Audio
CPU Socket Type
LGA775 Socket
CPU Type
Celeron, Core 2 Duo, Core 2 Quad, Dual-Core Xeon 3000 series, Pentium, Quad-Core Xeon 3300 series, Xeon
Data Bus Speed
1333 MHz
Depth
24.4 cm
Form Factor
Micro ATX
Graphics Controller
Intel GMA X4500
Hardware Features
Chassis intrusion detection, Intel Fast Memory Access Technology
Hardware Monitoring
CPU core temperature, CPU core voltage, CPU fan tachometer, chassis temperature, system voltage
Installed Qty (Max Supported)
1
Interfaces
1 x audio - line-in - mini-phone stereo 3.5 mm, 1 x audio - line-out - mini-phone stereo 3.5 mm, 1 x display / video - DVI-Digital, 1 x display / video - VGA - 15 pin HD D-Sub (HD-15), 1 x keyboard - generic - 6 pin mini-DIN (PS/2 style), 1 x microphone - input - mini-phone 3.5 mm, 1 x mouse - generic - 6 pin mini-DIN (PS/2 style), 1 x network - Ethernet 10Base-T/100Base-TX/1000Base-T - RJ-45, 4 x Hi-Speed USB - 4 pin USB Type A
Manufacturer
Intel
Model
DB43LD
MPN
DB43LD
Power Connectors
24-pin main power connector, 4-pin ATX12V connector
Processor
Intel Xeon Quad-Core/Dual-Core
Product Type
Motherboard
Sleep / Wake Up Features
Keyboard wake up, mouse wake up, suspend to RAM (STR), wake on PCI device, wake on USB port
Storage Controllers
Serial ATA-300, eSATA port
Storage Interfaces
Intel ICH10D : SATA-300 - connector(s): 5 x 7pin SATA, 1 x 7pin eSATA - 6 device(s)
Supported RAM Integrity Check
Non-ECC
Supported RAM Technology
DDR2 SDRAM
Width
24.4 cm
Features
- Intel B43 Express
- LGA775 Socket
- Micro ATX
Datasheet
Intel-DB43LD-ds1-1461242959.pdf
3214 KiB
Extracted Text
Intel® Desktop Board
DB43LD
Technical Product Specification
May 2009
Order Number: E64767-001US
®
The Intel Desktop Board DB43LD 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 DB43LD Specification Update.
Revision History
Revision Revision History Date
®
-001 First release of the Intel Desktop Board DB43LD Technical Product May 2009
Specification.
®
This product specification applies to only the standard Intel Desktop Board DB43LD with BIOS
identifier LDB4310H.86A.
Changes to this specification will be published in the Intel Desktop Board DB43LD 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. UNLESS OTHERWISE AGREED IN
WRITING BY INTEL, THE INTEL PRODUCTS ARE NOT DESIGNED NOR INTENDED FOR ANY APPLICATION IN
WHICH THE FAILURE OF THE INTEL PRODUCT COULD CREATE A SITUATION WHERE PERSONAL INJURY OR
DEATH MAY OCCUR.
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, Core, Pentium, Xeon, 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 © 2009, 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 DB43LD. It describes the standard product and available
manufacturing options.
Intended Audience
The TPS is intended to provide detailed, technical information about the Intel Desktop
Board DB43LD 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 DB43LD 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.......................................................................................... 9
1.1.1 Feature Summary .................................................................. 9
1.1.2 Board Layout....................................................................... 11
1.1.3 Block Diagram ..................................................................... 13
1.2 Legacy Considerations...................................................................... 14
1.3 Online Support................................................................................ 14
1.4 Processor ....................................................................................... 15
1.5 System Memory .............................................................................. 16
1.5.1 Memory Configurations ......................................................... 17
®
1.6 Intel B43 Express Chipset ............................................................... 19
1.6.1 Intel B43 Graphics Subsystem................................................ 19
1.6.2 USB ................................................................................... 22
1.6.3 Serial ATA Interfaces ............................................................ 23
1.7 Real-Time Clock Subsystem .............................................................. 24
1.8 Legacy I/O Controller....................................................................... 24
1.8.1 Serial Port........................................................................... 24
1.9 Audio Subsystem............................................................................. 25
1.9.1 Audio Subsystem Software .................................................... 26
1.9.2 Audio Connectors and Headers............................................... 26
1.10 LAN Subsystem............................................................................... 27
®
1.10.1 Intel 82567LM Gigabit Ethernet Controller.............................. 27
1.10.2 LAN Subsystem Software....................................................... 28
1.10.3 RJ-45 LAN Connector with Integrated LEDs .............................. 28
1.11 Hardware Management Subsystem .................................................... 29
1.11.1 Hardware Monitoring and Fan Control...................................... 29
1.11.2 Fan Monitoring..................................................................... 29
1.11.3 Chassis Intrusion and Detection.............................................. 29
1.11.4 Thermal Monitoring .............................................................. 30
1.12 Power Management ......................................................................... 31
1.12.1 ACPI................................................................................... 31
1.12.2 Hardware Support ................................................................ 34
1.12.3 ENERGY STAR* .................................................................... 37
1.13 Chipset Upgrade with Purchased Permit.............................................. 38
1.14 Intel Standard Manageability Technology ............................................ 38
1.14.1 Intel Standard Manageability Features..................................... 38
®
1.14.2 Intel Active Management Technology Software and Drivers....... 40
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Intel Desktop Board DB43LD Technical Product Specification
2 Technical Reference
2.1 Memory Map................................................................................... 41
2.1.1 Addressable Memory............................................................. 41
2.2 Connectors and Headers................................................................... 44
2.2.1 Back Panel Connectors.......................................................... 45
2.2.2 Component-side Connectors and Headers ................................ 46
2.3 BIOS Configuration Jumper Block....................................................... 55
2.4 Mechanical Considerations ................................................................ 57
2.4.1 Form Factor......................................................................... 57
2.5 Electrical Considerations................................................................... 58
2.5.1 Power Supply Considerations ................................................. 58
2.5.2 Fan Header Current Capability................................................ 58
2.5.3 Add-in Board Considerations .................................................. 59
2.6 Thermal Considerations.................................................................... 59
2.7 Reliability ....................................................................................... 61
2.8 Environmental ................................................................................ 61
3 Overview of BIOS Features
3.1 Introduction ................................................................................... 63
3.2 BIOS Flash Memory Organization....................................................... 64
3.3 Resource Configuration .................................................................... 64
3.3.1 PCI* Autoconfiguration.......................................................... 64
3.4 System Management BIOS (SMBIOS)................................................. 65
3.5 Legacy USB Support ........................................................................ 66
3.6 BIOS Updates ................................................................................. 67
3.6.1 Language Support ................................................................ 67
3.6.2 Custom Splash Screen .......................................................... 67
3.7 BIOS Recovery................................................................................ 68
3.8 Boot Options................................................................................... 68
3.8.1 CD-ROM Boot ...................................................................... 68
3.8.2 Network Boot....................................................................... 68
3.8.3 Booting Without Attached Devices........................................... 69
3.8.4 Changing the Default Boot Device During POST ........................ 69
3.9 Adjusting Boot Speed....................................................................... 69
3.9.1 Peripheral Selection and Configuration..................................... 69
3.9.2 BIOS Boot Optimizations ....................................................... 70
3.10 BIOS Security Features .................................................................... 71
4 Error Messages and Beep Codes
4.1 Speaker ......................................................................................... 73
4.2 BIOS Beep Codes ............................................................................ 73
4.3 Front-panel Power LED Blink Codes.................................................... 74
4.4 BIOS Error Messages ....................................................................... 74
4.5 Port 80h POST Codes ....................................................................... 75
vi
Contents
5 Regulatory Compliance and Battery Disposal Information
5.1 Regulatory Compliance..................................................................... 81
5.1.1 Safety Standards.................................................................. 81
5.1.2 European Union Declaration of Conformity Statement................ 82
5.1.3 Product Ecology Statements................................................... 83
5.1.4 EMC Regulations .................................................................. 87
5.1.5 Product Certification Markings (Board Level)............................. 88
5.2 Battery Disposal Information............................................................. 89
Figures
1. Major Board Components.................................................................. 11
2. Block Diagram................................................................................ 13
3. Memory Channel and DIMM Configuration ........................................... 18
4. Back Panel Audio Connector Options .................................................. 26
5. LAN Connector LED Locations............................................................ 28
6. Thermal Sensors and Fan Headers ..................................................... 30
7. Location of the Standby Power Indicator LED....................................... 37
8. Detailed System Memory Address Map ............................................... 42
9. Back Panel Connectors ..................................................................... 45
10. Component-side Connectors and Headers ........................................... 46
11. Connection Diagram for Front Panel Header ........................................ 51
12. Connection Diagram for Front Panel USB Headers ................................ 54
13. Location of the BIOS Configuration Jumper Block ................................. 55
14. Board Dimensions........................................................................... 57
15. Localized High Temperature Zones..................................................... 60
Tables
1. Feature Summary.............................................................................. 9
2. Board Components Shown in Figure 1 ................................................ 12
3. Supported Memory Configurations ..................................................... 16
4. DVI Port Status Conditions................................................................ 21
5. Audio Jack Retasking Support ........................................................... 25
6. LAN Connector LED States................................................................ 28
7. Effects of Pressing the Power Switch .................................................. 31
8. Power States and Targeted System Power........................................... 32
9. Wake-up Devices and Events ............................................................ 33
10. System Memory Map ....................................................................... 43
11. Component-side Connectors and Headers Shown in Figure 10................ 47
12. Front Panel Audio Header for HD Audio............................................... 48
13. Front Panel Audio Header for AC ’97 Audio .......................................... 48
14. Serial ATA Connectors...................................................................... 48
15. Serial Port Header ........................................................................... 48
16. Chassis Intrusion Header.................................................................. 49
17. Front, Rear, and Processor (4-Pin) Fan Header .................................... 49
18. Processor Core Power Connector........................................................ 50
vii
Intel Desktop Board DB43LD Technical Product Specification
19. Main Power Connector...................................................................... 50
20. Front Panel Header .......................................................................... 51
21. States for a One-Color Power LED...................................................... 52
22. States for a Two-Color Power LED...................................................... 52
23. Alternate Front Panel Power LED Header............................................. 53
24. Intel AMT “M” State LED Behavior...................................................... 53
25. BIOS Setup Configuration Jumper Settings.......................................... 56
26. Recommended Power Supply Current Values ....................................... 58
27. Fan Header Current Capability........................................................... 58
28. Thermal Considerations for Components ............................................. 60
29. Intel Desktop Board DB43LD Environmental Specifications .................... 61
30. BIOS Setup Program Menu Bar.......................................................... 64
31. BIOS Setup Program Function Keys.................................................... 64
32. AcceptableDrives/Media Types for BIOS Recovery ................................ 68
33. Boot Device Menu Options ................................................................ 69
34. Supervisor and User Password Functions............................................. 71
35. Beep Codes.................................................................................... 73
36. BIOS Error Messages ....................................................................... 74
37. Port 80h POST Code Ranges.............................................................. 75
38. Port 80h POST Codes ....................................................................... 76
39. Typical Port 80h POST Sequence........................................................ 79
40. Safety Standards............................................................................. 81
41. Lead-Free Board Markings ................................................................ 86
42. EMC Regulations............................................................................. 87
43. Product Certification Markings ........................................................... 88
viii
1 Product Description
1.1 Overview
1.1.1 Feature Summary
Table 1 summarizes the major features of Intel Desktop Board DB43LD.
Table 1. Feature Summary
Form Factor Micro-ATX (9.60 inches by 9.60 inches [243.84 millimeters by
243.84 millimeters])
Processor Support for the following:
®
• Intel Core™2 Quad processor Q6000/Q8000/Q9000 Series in an LGA775
socket
®
• Intel Core™2 Duo processor E4000/E5000/E6000/E8000/E9000 Series in an
LGA775 socket
® ®
• Intel Pentium Dual-Core processor E2000 Series in an LGA775 socket
® ®
• Intel Celeron Dual-Core processor 1000 Series in an LGA775 socket
® ®
• Intel Xeon processor 3000 Series in an LGA775 socket
• Two 240-pin DDR2 SDRAM Dual Inline Memory Module (DIMM) sockets
Memory
• Support for non-ECC DDR2 800 or 667 MHz DIMMs
• Support for up to 8 GB of system memory using non-ECC DDR2 800 or
667 MHz DIMMs
®
Chipset
Intel B43 Express Chipset, consisting of:
®
• Intel 82B43 Graphics and Memory Controller Hub (GMCH)
®
• Intel 82801JD I/O Controller Hub (ICH10D)
Audio 2+2 channel audio subsystem with S/PDIF support using the Realtek* ALC662
high definition audio codec
Video Internal Graphics:
®
• Intel GMA4500 onboard graphics subsystem with support for:
― Analog displays (VGA)
― Digital displays (DVI-D)
• External Graphics:
― One PCI Express 2.0 x16 add-in graphics card connector
― One PCI Express x1 add-in graphics card connector
Legacy I/O Control Winbond W83627DHG-A based Legacy I/O controller for hardware management,
serial, parallel, and PS/2* ports
continued
9
Intel Desktop Board DB43LD Technical Product Specification
Table 1. Feature Summary (continued)
• Ten USB 2.0 ports:
Peripheral
Interfaces
― Four ports are implemented with stacked back panel connectors
― Six ports are routed to three separate front panel headers
• Six Serial ATA (3 Gbps) interfaces, including one red external Serial ATA
(eSATA) interface
• One parallel port back panel connector
• One serial port header
• PS/2 keyboard and mouse ports on the back panel
®
LAN Support Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel 82567LM
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
• 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, PCI Express, PS/2 devices, serial port, front panel, USB ports,
and LAN
• One PCI Express x16 bus add-in card connector
Expansion
Capabilities • One PCI Express x1 bus add-in card connector
• Two PCI Conventional bus connectors
® ® ®
Hardware Monitor • Intel Quiet System Technology (Intel QST) implemented through the Intel
®
Management Engine (Intel ME) in ICH10D
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
10
Product Description
1.1.2 Board Layout
Figure 1 shows the location of the board’s major components.
Figure 1. Major Board Components
Table 2 lists the components identified in Figure 1.
11
Intel Desktop Board DB43LD Technical Product Specification
Table 2. Board Components Shown in Figure 1
Item/callout
from Figure 1 Description
A Front panel audio header
B PCI Conventional bus add-in card connector
C PCI Conventional bus add-in card connector
D Battery
E PCI Express x1 connector
F PCI Express x16 connector
G Back panel connectors
H Processor core power connector (2 X 2)
I Rear chassis fan header
J LGA775 processor socket
K Processor fan header
L Intel 82B43 GMCH
M DIMM Channel A socket
N DIMM Channel B socket
O Front chassis fan header
P Serial port header
Q Main power connector (2 x 12)
R Intel 82801JD I/O Controller Hub (ICH10D)
S Serial ATA connectors (5)
T eSATA connector (red)
U Front panel header
V Alternate front panel power LED header
W Front panel USB header
X Front panel USB header
Y Front panel USB header
Z Speaker
AA BIOS setup configuration jumper block
BB Chassis intrusion header
CC S/PDIF header
12
Product Description
1.1.3 Block Diagram
Figure 2 is a block diagram of the board’s major functional areas.
Figure 2. Block Diagram
13
Intel Desktop Board DB43LD Technical Product Specification
1.2 Legacy Considerations
This board differs from other Intel Desktop Board products, with specific changes
including (but not limited to) the following:
• No serial port on the back panel
• No diskette drive connector
• No parallel ATA connector
• The serial port header is located near the 2 x 12 power connector and may require
a specialized chassis or cabling solution to use
1.3 Online Support
To find information about… Visit this World Wide Web site:
Intel Desktop Board DB43LD http://www.intel.com/products/motherboard/DB43LD/index.htm
Desktop Board Support http://support.intel.com/support/motherboards/desktop
Available configurations for the Intel http://www.intel.com/products/motherboard/DB43LD/index.htm
Desktop Board DB43LD
Supported processors http://processormatch.intel.com
Chipset information http://www.intel.com/products/desktop/chipsets/index.htm
BIOS and driver updates http://downloadcenter.intel.com
Tested memory http://support.intel.com/support/motherboards/desktop/sb/CS-
025414.htm
Integration information http://www.intel.com/support/go/buildit
14
Product Description
1.4 Processor
The board is designed to support the following processors:
®
• Intel Core™2 Quad processor Q6000/Q8000/Q9000 Series in an LGA775 socket
®
• Intel Core™2 Duo processor E4000/E5000/E6000/E8000/E9000 Series in an
LGA775 socket
® ®
• Intel Pentium Dual-Core processor E2000 Series in an LGA775 socket
® ®
• Intel Celeron Dual-Core processor 1000 Series in an LGA775 socket
® ®
• Intel Xeon processor 3000 Series in an LGA775 socket
Other processors may be supported in the future. This board is designed to support
processors with a maximum wattage of 95 W. The processors listed above are only
supported when falling within the wattage requirements of the board. 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://processormatch.intel.com
CAUTION
Use only the processors listed on the 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 2.2.2.3, page 50
15
Intel Desktop Board DB43LD Technical Product Specification
1.5 System Memory
The board has two DIMM sockets and supports the following memory features:
• 1.8 V DDR2 SDRAM DIMMs with gold plated contacts, with the option to raise the
voltage to 1.92 V to support higher performance DDR2 SDRAM DIMMs
• Dual channel interleaved mode support
• 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 800 MHz or DDR2 667 MHz
DIMMs; refer to Section 2.1.1 on page 41 for information on the total amount of
addressable memory.
• Minimum total system memory: 512 MB
• Non-ECC DIMMs
• Serial Presence Detect
• DDR2 800 MHz or DDR2 667 MHz SDRAM DIMMs
⎯ DDR2 667 MHz DIMMs with SPD timings of only 5-5-5 (tCL-tRCD-tRP)
⎯ DDR2 800 MHz DIMMs with SPD timings of only 5-5-5 or 6-6-6 (tCL-tRCD-tRP)
� 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 allows 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 3. Supported Memory Configurations
Smallest usable Largest usable Maximum capacity
DIMM (one x16 DIMM (one x8 with two identical
DIMM SDRAM Single-sided Double-sided x8 Double-sided
Type Technology DIMM) DIMM) DIMMs
DDR2 667 512 Mbit 256 MB 1 GB 2 GB
DDR2 667 1 Gbit 512 MB 2 GB 4 GB
DDR2 800 512 Mbit 256 MB 1 GB 2 GB
DDR2 800 1 Gbit 512 MB 2 GB 4 GB
DDR 667 2 Gbit 1 GB 4 GB 8 GB
DDR 800 2 Gbit 1 GB 4 GB 8 GB
For information about… Refer to:
Tested Memory http://support.intel.com/support/motherboards/desktop/sb/
CS-025414.htm
16
Product Description
1.5.1 Memory Configurations
The Intel 82B43 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.
For information about… Refer to:
Memory configuration examples http://www.intel.com/support/motherboards/desktop/sb/
cs-011965.htm
17
Intel Desktop Board DB43LD Technical Product Specification
Figure 3 illustrates the memory channel and DIMM configuration.
Figure 3. Memory Channel and DIMM Configuration
INTEGRATOR’S NOTE
#
Regardless of the memory configuration used (dual channel, single channel, or flex
mode), Channel A must always be populated. This is a requirement of the Intel
Management Engine.
18
Product Description
®
1.6 Intel B43 Express Chipset
The Intel B43 Express chipset consists of the following devices:
• Intel 82B43 Graphics and Memory Controller Hub (GMCH) with Direct Media
Interface (DMI) interconnect
• Intel 82801JD I/O Controller Hub (ICH10D)
The GMCH component provides interfaces to the CPU, memory, and the DMI
interconnect. The component also provides integrated graphics capabilities supporting
3D, 2D, and display capabilities. The ICH10D is a centralized controller for the board’s
I/O paths.
The chipset supports the following features:
• Onboard graphics
• Dynamic Video Memory Technology
• USB
• Serial ATA
For information about Refer to
The Intel B43 Express chipset http://www.intel.com/products/desktop/chipsets/index.htm
Resources used by the chipset Chapter 2
1.6.1 Intel B43 Graphics Subsystem
The Intel B43 Express chipset contains two separate, mutually exclusive graphics
options. Either the Intel Graphics Media Accelerator 4500 (Intel GMA 4500) graphics
controller (contained within the 82B43 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 Intel GMA
4500 graphics controller is disabled.
®
1.6.1.1 Intel Graphics Media Accelerator 4500 Graphics
Controller
The Intel GMA 4500 graphics controller features the following:
• High quality texture engine
⎯ DirectX10* and OpenGL* 2.0 compliant
⎯ Shader Model 4.0
• 3D Graphics Rendering enhancements
⎯ 1.6 dual texture GigaPixel/sec max fill rate
⎯ 16-bit and 32-bit color
⎯ Vertex cache
• Video
⎯ Hi-Definition playback (partial hardware acceleration for MPEG-2, full hardware
acceleration for VC1 and AVC)
⎯ Dynamic Video Memory Technology (DVMT) 5.0 uses system memory based on
the operating system and the amount of memory installed
19
Intel Desktop Board DB43LD Technical Product Specification
• Display
⎯ Supports digital and analog displays up to 2048 x 1536 at 75 Hz refresh
(QXGA); also supports 1920 x 1080 resolution for full High Definition video
playback quality
⎯ Dual independent display support (VGA and DVI-D)
1.6.1.2 Dynamic Video Memory Technology (DVMT 5.0)
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. The amount of system memory
allocated to DVMT varies depending on the amount of total system memory installed
as well as the operating system being used. For Windows Vista*, a minimum of
128 MB can be allocated to DVMT and a maximum of over 2 GB can be allocated to
DVMT with the correct amount of 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
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.
1.6.1.3 Configuration Modes
The video modes supported by this board are based on the Extended Display
Identification Data (EDID) modes of the monitor to which the system is connected.
Standard monitors are assumed.
20
Product Description
1.6.1.4 Digital Visual Interface (DVI)
The DVI-D port supports digital DVI displays. The maximum supported resolution is
2048 x 1536 at 75 Hz refresh (QXGA). The DVI-D port is compliant with the DVI 1.0
specification.
Depending on the type of add-in card installed in the PCI Express x16 connector, the
DVI port will behave as described in Table 4.
Table 4. DVI Port Status Conditions
DVI Digital (DVI-D)
PCI Express x16 Connector Status Port Status
No add-in card installed Enabled
Non-video PCI Express x1 add-in card Enabled
installed
PCI Express x4, x8, or x16 add-in card Disabled
installed
ADD2 or MEC card installed Disabled
1.6.1.5 Advanced Digital Display (ADD2/MEC/ADD2+) Card
Support
The GMCH routes two multiplexed SDVO ports that are each capable of driving up to a
400 MHz pixel clock to the PCI Express x16 connector. When an ADD2/MEC/ADD2+
card is detected, the Intel GMA 4500 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/ADD2+ card. An ADD2/MEC/ADD2+ card can
either be configured to support simultaneous display or can be configured to support
dual independent display as an extended desktop configuration with different color
depths and resolutions with DVI analog output only. ADD2/MEC/ADD2+ cards can be
designed to support the following configurations:
• Low Voltage Differential Signaling (LVDS)
• Single device operating in dual channel mode
• HDTV output
• HDMI support (when used with the HD Audio Link header)
21
Intel Desktop Board DB43LD Technical Product Specification
1.6.1.6 PCI Express x16 Graphics
The GMCH supports discrete add in graphics cards via the PCI Express 2.0 x16
graphics connector:
• Supports PCI Express GEN1 frequency of 1.25 GHz resulting in 2.5 Gb/s each
direction (500 MB/s total). Maximum theoretical bandwidth on interface of 4 GB/s
in each direction simultaneously, for an aggregate of 8 GB/s when operating in x16
mode.
• Supports PCI Express GEN2 frequency of 2.5 GHz resulting in 5.0 Gb/s each
direction (1000 MB/s total). Maximum theoretical bandwidth on interface of 8 GB/s
in each direction simultaneously, for an aggregate of 16 GB/s when operating in
x16 mode.
For information about Refer to
PCI Express technology http://www.pcisig.com
1.6.2 USB
The board supports up to ten USB 2.0 ports, supports UHCI and EHCI, and uses UHCI-
and EHCI-compatible drivers.
The ICH10D provides the USB controller for all ports. The port arrangement is as
follows:
• Four ports are implemented with stacked back panel connectors
• Six ports are routed to three separate front panel USB headers
For information about Refer to
The location of the USB connectors on the back panel Figure 9, page 45
The location of the front panel USB headers Figure 10, page 46
22
Product Description
1.6.3 Serial ATA Interfaces
The board provides five Serial ATA (SATA) connectors, which support one device per
connector. The board also provides one red external Serial ATA (eSATA) connector.
1.6.3.1 Serial ATA Support
The board’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 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 Vista operating systems.
NOTE
�
Many Serial ATA drives use new low-voltage power connectors and require adapters 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 10, page 46
23
Intel Desktop Board DB43LD Technical Product Specification
1.7 Real-Time Clock Subsystem
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 11 shows the location of the battery.
1.8 Legacy I/O Controller
The Legacy I/O controller provides the following features:
• One serial port header
• One parallel port back panel connector
• PS/2-style keyboard and mouse interfaces
• Serial IRQ interface compatible with serialized IRQ support for PCI systems
• 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
The board has one serial port header 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 10, page 46
The signal names of the serial port header Table 15, page 48
24
Product Description
1.9 Audio Subsystem
The audio subsystem consists of the following:
• Intel 82801JD (ICH10D)
• Realtek ALC662 audio codec
The audio subsystem supports the following audio interfaces:
• S/PDIF header
® ®
• Front panel audio header with support for Intel High Definition Audio (Intel HD
Audio) and AC ’97 audio
• Back panel audio connectors
NOTE
�
Systems built with an AC ‘97 audio front panel will not be able to obtain the Microsoft
Windows Vista logo.
Table 5 lists the supported functions of the front panel and back panel audio jacks.
Table 5. Audio Jack Retasking Support
Supports Supports Front Supports Supports
Audio Jack Microphone? Speaker? Headphones? Line in?
Front panel – Green No Yes Yes No
Front panel – Pink Yes No No No
Back panel – Blue No No No Yes
Back panel – Green No Yes Yes No
Back panel – Pink Yes No No No
25
Intel Desktop Board DB43LD Technical Product Specification
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 14
1.9.2 Audio Connectors and Headers
The board contains audio connectors on the back panel and audio headers on 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 back panel audio connectors are shown in Figure 4.
Item Description
A Line in
B Line out
C Mic in
Figure 4. Back Panel Audio Connector Options
For information about Refer to
The location of the front panel audio header Figure 10, page 46
The signal names of the front panel audio header Table 12, page 48
26
Product Description
1.10 LAN Subsystem
The LAN subsystem consists of the following:
• Intel 82567LM Gigabit Ethernet Controller (10/100/1000 Mbits/sec)
• Intel 82801JD (ICH10D)
• RJ-45 LAN connector with integrated status LEDs
Additional features of the LAN subsystem include:
• CSMA/CD protocol engine
• LAN connect interface between ICH10D and the LAN controller
• PCI Conventional bus power management
⎯ ACPI technology support
⎯ LAN wake capabilities
• LAN subsystem software
For information about Refer to
LAN software and drivers http://downloadcenter.intel.com
®
1.10.1 Intel 82567LM Gigabit Ethernet Controller
The Intel 82567LM 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
• 802.1p and 802.1q
• TCP, IP, and UDP checksum offload (for IPv4 and IPv6)
• Transmit TCP segmentation
• Full device driver compatibility
• PCI Express power management support
27
Intel Desktop Board DB43LD Technical Product Specification
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 14
1.10.3 RJ-45 LAN Connector with Integrated LEDs
Two LEDs are built into the RJ-45 LAN connector (shown in Figure 5 below).
Item Description
A Link LED (Green)
B Data Rate LED (Green/Yellow)
Figure 5. LAN Connector LED Locations
Table 6 describes the LED states when the board is powered up and the LAN
subsystem is operating.
Table 6. LAN Connector LED States
LED Color State Condition
N/A Off LAN link is not established
Link (A) On LAN link is established
Green
Blinking LAN activity occurring
N/A Off 10 Mb/s data rate
Speed (B)
Green On 100 Mb/s data rate
Yellow On 1000 Mb/s data rate
28
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 ICH10D
• Remote thermal diode sensor for ambient temperature sensing
• Thermal sensors in the processor, 82B43 GMCH, and 82801JD ICH10D
• Power supply monitoring of five voltages (+5 V, +12 V, +3.3 V, +1.125 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 according to thermal conditions
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 35
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 10, page 46
29
Intel Desktop Board DB43LD Technical Product Specification
1.11.4 Thermal Monitoring
Figure 6 shows the locations of the thermal sensors and fan headers.
Item Description
A Rear chassis fan header
B Thermal diode, located on the processor die
C Processor fan header
D Thermal diode, located on the GMCH die
E Front chassis fan header
F Thermal diode, located on the ICH10D die
Figure 6. Thermal Sensors and Fan Headers
NOTE
�
The minimum thermal reporting threshold for the GMCH is 66 °C. The GMCH thermal
sensor will display 66 °C until the temperature rises above this point.
30
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
⎯ Wake from USB (S1 and S3 only)
⎯ Power Management Event signal (PME#) wake-up support
⎯ WAKE# signal wake-up support
⎯ Wake from PS/2 devices
⎯ Wake from serial port
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 9 on page 33)
• Support for a front panel power and sleep mode switch
Table 7 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 7. 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)
31
Intel Desktop Board DB43LD 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 8 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 8. 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 > 50 W
state state.
G0 – idle state S0 – idle state C3 – sleep D0 Full power < 50 W
G0 – idle state S0 – idle state C4 – deep D0 Full power < 50 W
sleep
G1 – sleeping S1 – Processor C1 – stop D1, D2, D3 – 5 W < power < 50 W
state stopped grant device
specification
specific.
(Note 2)
G1 – sleeping S3 – Suspend to No power D3 – no power Power < 4.7 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 < 2.7 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 < 2.7 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 inclusive of Wake
® ®
on LAN allowance of 0.7 W. Intel Management Engine Interface (Intel MEI) is assumed to be in Wake
on LAN mode.
32
Product Description
1.12.1.2 Wake-up Devices and Events
Table 9 lists the devices or specific events that can wake the computer from specific
states.
Table 9. Wake-up Devices and Events
These devices/events can wake up the computer… …from this state
(Note 1)
LAN S1, S3, S4, S5
(Note 1)
PME# signal S1, S3, S4, S5
Power switch S1, S3, S4, S5
RTC alarm S1, S3, S4, S5
Serial port S1, S3
USB S1, S3
(Note 2)
WAKE# signal S1, S3, S4, S5
(Note 1)
PS/2 port S1, S3, S4, S5
Note 1: S4 implies operating system support only. USB ports are turned off during S4/S5 states.
Note 2: The PCI Express WAKE# signal is controlled by the enable/disable option in the BIOS.
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.
33
Intel Desktop Board DB43LD Technical Product Specification
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
• LAN wake capabilities
• Instantly Available PC technology
• Wake from USB (S1 and S3 only)
• Power Management Event signal (PME#) wake-up support
• WAKE# signal wake-up support
• Wake from PS/2 devices
• Wake from serial port
• +5 V Standby Power Indicator LED
LAN wake capabilities and Instantly Available PC technology require power from the
+5 V standby line.
NOTE
�
The use of 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 10, page 46
The signal names of the main power connector Table 19, page 50
34
Product Description
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.
• The processor fan header is wired to a fan tachometer input. The front and rear fan
headers each have independent tachometer input to the hardware monitoring and
fan control device. All fan headers support closed-loop fan control that can adjust
the fan speed according to thermal conditions.
• All fan headers have a +12 V DC connection.
For information about Refer to
The locations of the fan headers and thermal sensors Figure 6, page 30
The signal names of the fan headers Table 17, page 49
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
⎯ By Ping
⎯ Magic Packet
• The onboard LAN subsystem
35
Intel Desktop Board DB43LD Technical Product Specification
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 9 on page 33 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 Wake from USB
USB bus activity wakes the computer from ACPI S1 or S3 state.
NOTE
�
Wake from USB requires the use of a USB peripheral that supports Wake from USB
and support in the operating system.
1.12.2.6 PME# Signal Wake-up Support
When the PME# signal on the PCI bus is asserted, the computer wakes from an ACPI
S1, S3, S4, or S5 state (with Wake on PME enabled in the BIOS).
1.12.2.7 WAKE# Signal Wake-up Support
When the WAKE# signal on the PCI Express bus is asserted, the computer wakes from
an ACPI S1, S3, S4, or S5 state.
1.12.2.8 Wake from PS/2 Devices
PS/2 device activity wakes the computer from an ACPI S1, S3, S4, or S5 state.
However, when the computer is in an S4 or S5 state, the only PS/2 activity that will
wake the computer is the alt-PrtScrn key combination on the keyboard.
1.12.2.9 Wake from Serial Port
Serial port activity wakes the computer from an ACPI S1 or S3 state.
36
Product Description
1.12.2.10 +5 V Standby Power Indicator LED
The +5 V standby power indicator LED shows that power is still present even when the
computer appears to be off. Figure 7 shows the location of the standby power
indicator LED.
CAUTION
If AC power has been switched off and the 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.
Figure 7. Location of the Standby Power Indicator LED
1.12.3 ENERGY STAR*
In 2007, the US Department of Energy and the US Environmental Protection Agency
revised the ENERGY STAR* requirements. Intel has worked directly with these two
governmental agencies to define the new requirements. The Intel Desktop Board
DB43LD meets the Category A requirements.
For information about Refer to
ENERGY STAR requirements and recommended configurations http://www.intel.com/go/energystar
37
Intel Desktop Board DB43LD Technical Product Specification
1.13 Chipset Upgrade with Purchased Permit
Intel Desktop Board DB43LD may be upgraded through the purchase and installation
® ®
of a permit. This permit enables Intel Standard Manageability and Intel Fast Call for
Help.
For information about Refer to
Obtaining a permit to upgrade your chipset http://upgrades.intel.com/
1.14 Intel Standard Manageability Technology
Intel offers IT organizations tamper-resistant and persistent management capabilities.
Specifically, Intel Standard Manageability is a hardware-based solution that uses out of
band communication to manage access to client systems in addition to offering
encrypted and persistent asset management and remote diagnostics and/or recovery
capabilities for networked platforms. With Intel manageability, 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 or the power state of the system.
The Intel manageability subsystem consists of:
• ARC4 micro-controller embedded in the Intel 82B43 Graphics and Memory
Controller Hub (GMCH)
• Intel 82801JD Controller Hub (ICH10D)
• Intel 82567LM Gigabit (10/100/1000 Mbits/sec) Ethernet LAN controller
• Channel A DIMM(s)
• BIOS/SPI Flash (32 Mbits)
® ®
• On-board Intel Active Management Technology (Intel AMT) status LED
NOTE
�
Software with manageability capability is required to take advantage of Intel platform
management capabilities.
1.14.1 Intel Standard Manageability Features
The key features of Intel manageability include:
• Secure Out of Band (OOB) system management that allows remote management
of PCs regardless of system power or operating system state.
⎯ SSL 3.1/TLS encryption
⎯ HTTP authentication
⎯ TCP/IP
⎯ HTTP web GUI
⎯ XML/SOAP API
⎯ Web Services for Management (WS-MAN) protocol support
38
Product Description
• Remote troubleshooting and recovery that can significantly reduce desk-side visits
and potentially increasing efficiency of IT technical staff.
⎯ Intel Fast Call for Help
⎯ System event log
⎯ IDE Redirection (IDE-R) or PXE boot: remote CD or network drive boot
⎯ Serial over LAN
⎯ OOB diagnostics
⎯ Remote control
⎯ Operating system repair
• Proactive alerting that decreases downtime and minimizes time to repair.
⎯ Programmable policies
⎯ Operating system lock-up alert
⎯ Boot failure alert
⎯ Hardware failure alerts
• Third party non-volatile storage that prevents users from removing critical
inventory, remote control, or virus protection agents.
⎯ Nonvolatile storage for agents
⎯ Tamper-resistant
• Remote hardware and software asset tracking that eliminates time-consuming
manual inventory tracking, which also reduces asset accounting costs.
⎯ E-Asset Tag
⎯ HW/SW inventory
• System Defense 2 - In addition to the in-bound and out-bound packet filtering of
the previous generation, System Defense 2 is an Intel manageability feature that
uses advanced heuristics to help protect against the propagation of worms through
the use of preset packet filters. The number of new connections made to a specific
port or IP address are counted over a specific time window. If a preset threshold is
exceeded, it will alert the Management Console and suspend the client’s network
activity until the system can be remediated.
• Remote Configuration or Zero Touch Configuration (ZTC) minimizes the cost to
deploy Intel manageability by eliminating the need for IT personnel to touch each
client system prior to configuration. ZTC consists of a single OEM BIOS/Firmware
image that provides the Intel manageability client with information to authenticate
connections and allows it to remotely perform a secure setup procedure. IT
departments must acquire an appropriate Intel Standard Manageability Technology
-trusted certificate as well as use a remote management application that supports
ZTC.
39
Intel Desktop Board DB43LD Technical Product Specification
®
1.14.1.1 Intel Fast Call for Help
Intel Fast Call for Help allows platforms outside the enterprise firewall to trigger a
®
connection to the Internet with a gateway enabled by Intel vPro™ technology. The
platform user presses a special button or key combination to initiate the platform
connection to a remote gateway enabled with Intel vPro technology. Upon
establishing a successful connection, a standardized event, such as a Platform Event
Trap (PET) is propagated to the enterprise network to register the client, either in the
enterprise or in the remediation network.
®
1.14.2 Intel Active Management Technology Software
and Drivers
Intel AMT software and drivers are available from Intel’s World Wide Web site. The
package consists of two separate drivers: one for the Intel MEI and one for Intel AMT.
For information about Refer to
Obtaining Intel AMT software and drivers Section 1.3, page 14
.
40
2 Technical Reference
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 (32 Mbits)
• Local APIC (19 MB)
• Direct 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
• Base graphics memory support (1 MB or 8 MB)
• Intel MEI single channel (8 MB) or dual channel (16 MB)
41
Intel Desktop Board DB43LD Technical Product Specification
The amount of installed memory that can be used will vary based on add-in cards,
BIOS settings, and operating system installed. Figure 8 shows a schematic of the
system memory map. All installed system memory can be used when there is no
overlap of system addresses.
Figure 8. Detailed System Memory Address Map
42
Technical Reference
Table 10 lists the system memory map.
Table 10. 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
43
Intel Desktop Board DB43LD Technical Product Specification
2.2 Connectors and Headers
CAUTION
Only the following connectors have overcurrent protection: Back panel and front panel
USB.
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.
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 a
shielded cable that meets the requirements for full-speed devices.
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 45)
• Component-side connectors and headers (see page 46)
44
Technical Reference
2.2.1 Back Panel Connectors
Figure 9 shows the location of the back panel connectors.
Item Description
A PS/2 port
B PS/2 port
C VGA port
D Parallel port
E DVI-D output
F USB ports (2)
G LAN
H USB ports (2)
I Audio line in
J Mic in
K Audio line out
Figure 9. 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.
45
Intel Desktop Board DB43LD Technical Product Specification
2.2.2 Component-side Connectors and Headers
Figure 10 shows the locations of the component-side connectors and headers.
Figure 10. Component-side Connectors and Headers
46
Technical Reference
Table 11 lists the component-side connectors and headers identified in Figure 10.
Table 11. Component-side Connectors and Headers Shown in Figure 10
Item/callout
from Figure 10 Description
A Front panel audio header
B PCI Conventional bus add-in card connector
C PCI Conventional bus add-in card connector
D PCI Express x1 connector
E PCI Express x16 connector
F Processor core power connector (2 X 2)
G Rear chassis fan header
H Processor fan header
I Front chassis fan header
J Serial port header
K Main power connector (2 X 12)
L Serial ATA connectors (5)
M eSATA connector (red)
N Alternate front panel Power LED header
O Front panel header
P Front panel USB header
Q Front panel USB header
R Front panel USB header
S Chassis intrusion header
T S/PDIF header
47
Intel Desktop Board DB43LD Technical Product Specification
2.2.2.1 Signal Tables for the Connectors and Headers
Table 12. Front Panel Audio Header for HD Audio
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
Table 13. Front Panel Audio Header for AC ’97 Audio
Pin Signal Name Pin Signal Name
1 MIC 2 AUD_GND
3 MIC_BIAS 4 AUD_GND
5 FP_OUT_R 6 FP_RETURN_R
7 AUD_5V 8 KEY (no pin)
9 FP_OUT_L 10 FP_RETURN_L
Table 14. Serial ATA Connectors
Pin Signal Name
1 Ground
2 TXP
3 TXN
4 Ground
5 RXN
6 RXP
7 Ground
Table 15. Serial Port Header
Pin Signal Name Pin Signal Name
1 DCD (Data Carrier Detect) 2 RXD# (Receive Data)
3 TXD# (Transmit Data) 4 DTR (Data Terminal Ready)
5 Ground 6 DSR (Data Set Ready)
7 RTS (Request to Send) 8 CTS (Clear to Send)
9 RI (Ring Indicator) 10 Key (no pin)
48
Technical Reference
Table 16. Chassis Intrusion Header
Pin Signal Name
1 Intruder
2 Ground
Table 17. Front, Rear, and Processor (4-Pin) Fan Header
Pin Signal Name
1 Ground
2 +12 V
3 FAN_TACH
4 FAN_CONTROL
2.2.2.2 Add-in Card Connectors
The board has the following add-in card connectors:
• PCI Express x16:
⎯ Supports PCI Express GEN1 frequency of 1.25 GHz resulting in 2.5 Gb/s each
direction (500 MB/s total). Maximum theoretical bandwidth on interface of
4 GB/s in each direction simultaneously, for an aggregate of 8 GB/s when
operating in x16 mode.
⎯ Supports PCI Express GEN2 frequency of 2.5 GHz resulting in 5.0 Gb/s each
direction (1000 MB/s total). Maximum theoretical bandwidth on interface of
8 GB/s in each direction simultaneously, for an aggregate of 16 GB/s when
operating in x16 mode.
• PCI Express x1: one PCI Express x1 connector. The x1 interface supports
simultaneous transfer speeds up to 250 MB/s of peak bandwidth per direction and
up to 500 MB/s concurrent bandwidth
• PCI Conventional (rev. 2.3 compliant) bus: two PCI Conventional bus add-in card
connectors.
Note the following considerations for the PCI Conventional bus connectors:
• The PCI Conventional bus connectors are bus master capable.
• SMBus signals are routed to the PCI Conventional bus connectors. This enables
PCI Conventional bus add-in boards with SMBus support to access sensor data on
the desktop 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.
49
Intel Desktop Board DB43LD Technical Product Specification
2.2.2.3 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 18. Processor Core Power Connector
Pin Signal Name Pin Signal Name
1 Ground 2 Ground
3 +12 V 4 +12 V
Table 19. 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.
For information about Refer to
Power supply considerations Section 2.5.1, page 58
50
Technical Reference
2.2.2.4 Front Panel Header
This section describes the functions of the front panel header. Table 20 lists the signal
names of the front panel header. Figure 11 is a connection diagram for the front panel
header.
Table 20. 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 2 HDR_BLNK_GRN Out Front panel green
pull-up to +5 V LED
3 HDA# Out Hard disk active 4 HDR_BLNK_YEL Out Front panel yellow
LED 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
Figure 11. Connection Diagram for Front Panel Header
51
Intel Desktop Board DB43LD Technical Product Specification
2.2.2.4.1 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 hard drive connected to an onboard Parallel ATA connector
2.2.2.4.2 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.
2.2.2.4.3 Power/Sleep LED Header
Pins 2 and 4 can be connected to a one- or two-color LED. Table 21 shows the
possible states for a one-color LED. Table 22 shows the possible states for a two-color
LED.
Table 21. States for a One-Color Power LED
LED State Description
Off Power off/sleeping
Steady Green Running
Table 22. 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 21 and Table 22 are suggested colors only. Actual LED
colors are chassis-specific.
2.2.2.4.4 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.
52
Technical Reference
2.2.2.5 Alternate 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 23. Alternate 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
2.2.2.6 Intel AMT “M” State LED
The board has an Intel AMT “M” state LED (red), located near the Channel A DIMM
socket. The “M” state is based on Intel ME status, as follows:
• M0 = Intel ME is in full control in S0
• M1 = Intel ME is in full control in S3-S5 for “out of bound” Intel manageability
• Moff = Intel ME is in sleep state after Intel ME timeout has occurred
Table 24. Intel AMT “M” State LED Behavior
Intel ME LED Sx/M1 Sx/Moff S0/M0
Enabled using AMTNVM LED blinks Off On
Disabled using AMTNVM Off Off On
53
Intel Desktop Board DB43LD Technical Product Specification
2.2.2.7 Front Panel USB Headers
Figure 12 is a connection diagram for the front panel USB headers.
INTEGRATOR’S NOTES
#
• The +5 V DC power on the USB headers is fused.
• Use only a front panel USB connector that conforms to the USB 2.0 specification
for high-speed USB devices.
Figure 12. Connection Diagram for Front Panel USB Headers
54
Technical Reference
2.3 BIOS Configuration 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 13 shows the location of the BIOS configuration jumper block. The jumper
determines the BIOS Setup program’s mode. Table 25 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.
Figure 13. Location of the BIOS Configuration Jumper Block
55
Intel Desktop Board DB43LD Technical Product Specification
Table 25. BIOS Setup Configuration Jumper Settings
Function/Mode Jumper Setting Configuration
Normal 1-2 The BIOS uses current configuration information and
passwords for booting.
Configure 2-3 After the POST runs, Setup runs automatically. The
maintenance menu is displayed.
Recovery None The BIOS attempts to recover the BIOS configuration. See
Section 3.7 for more information on BIOS recovery.
56
Technical Reference
2.4 Mechanical Considerations
2.4.1 Form Factor
The board is designed to fit into an ATX-form-factor chassis. Figure 14 illustrates the
mechanical form factor for 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]. Location of the I/O connectors and mounting holes are in
compliance with the ATX specification.
Figure 14. Board Dimensions
57
Intel Desktop Board DB43LD Technical Product Specification
2.5 Electrical Considerations
2.5.1 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.
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
For example, for a system consisting of a supported 65 W processor (see Section 1.4
on page 15 for a list of supported processors), 1 GB DDR2 RAM, one hard disk drive,
one optical drive, and all board peripherals enabled, the minimum recommended
power supply is 90 W. Table 26 lists the recommended power supply current values.
Table 26. Recommended Power Supply Current Values
3.3 V 5 V 12 V1 12 V2 -12 V 5 VSB
Output Voltage
Current 3.71 A 7.89 A 3.03 A 8.16 A 0.05 A 1.28 A
2.5.2 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 27 lists the current capability of the fan headers.
Table 27. Fan Header Current Capability
Fan Header Maximum Available Current
Processor fan 2.0 A
Front chassis fan 2.0 A
Rear chassis fan 2.0 A
58
Technical Reference
2.5.3 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.
2.6 Thermal Considerations
CAUTION
o
A chassis with a maximum internal ambient temperature of 38 C at the processor fan
inlet is a requirement. Use a processor heat sink that provides omni-directional
airflow to maintain required airflow across the processor voltage regulator area.
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://www3.intel.com/cd/channel/reseller/asmo-na/eng/tech_reference/53211.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 2.8.
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 15) can reach a temperature of up to 85 C in
an open chassis.
59
Intel Desktop Board DB43LD Technical Product Specification
Figure 15 shows the locations of the localized high temperature zones.
Item Description
A Processor voltage regulator area
B Processor
C Intel 82B43 GMCH
D Intel 82801JD (ICH10D)
Figure 15. Localized High Temperature Zones
Table 28 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 28. Thermal Considerations for Components
Component Maximum Case Temperature
Processor For processor case temperature, see processor datasheets and
processor specification updates
o
Intel 82B43 GMCH 103 C (under bias)
o
Intel 82801JD (ICH10D) 112 C (under bias)
60
Technical Reference
For information about Refer to
Processor datasheets and specification updates Section 1.2, page 14
Intel B43 Express chipset datasheets, specification updates, http://www.intel.com/products/chip
and design guides sets/index.htm
2.7 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 Intel Desktop Board
DB43LD MTBF is 132,790 hours.
2.8 Environmental
Table 29 lists the environmental specifications for the board.
Table 29. Intel Desktop Board DB43LD Environmental Specifications
Parameter Specification
Temperature
Non-Operating -20 °C to +70 °C at 95% humidity
Operating 0 °C to +50 °C at 90% humidity
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
61
Intel Desktop Board DB43LD Technical Product Specification
62
3 Overview of BIOS Features
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, LAN
EEPROM information, 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 LDB4310H.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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