® Intel Desktop Board D945PSN Technical Product Specification May 2005 Order Number: D14073-001US ® The Intel Desktop Board D945PSN 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 D945PSN Specification Update. Intel Desktop Board D945PSN Technical Product Specification 1.1 Overview 1.1.1 Feature Summary Table 1 summarizes the major features of the board. Table 1. Feature Summary Form Factor ATX (12.00 inches by 9.60 inches [304.80 millimeters by 243.84 millimeters]) ® ® Processor Support for an Intel Pentium 4 processor in an LGA775 socket with a 1066, 800, or 533 MHz system bus Memory • Four 240-pin DDR2 SDRAM Dual Inline Memory Module (DIMM) sockets • Support for DDR2 667, DDR2 533, or DDR2 400 MHz DIMMs • Support for up to 4 GB of system memory Chipset ® Intel 945P Chipset, consisting of: ® • Intel 82945P Memory Controller Hub (MCH) ® • Intel 82801G I/O Controller Hub (ICH7) Video One PCI Express* x16 bus add-in card connector Audio 6-channel (5.1) audio subsystem with three analog audio outputs using the Sigmatel 9220 audio codec Legacy I/O Control Legacy I/O controller for diskette drive, serial, parallel, and PS/2* ports USB Support for USB 2.0 devices Peripheral • Eight USB ports Interfaces • One serial port • One parallel port • Four Serial ATA interfaces • One Parallel ATA IDE interface with UDMA 33, ATA-66/100 support • One diskette drive interface • PS/2 keyboard and mouse ports LAN Support Refer to Table 2 on page 11 for a description of LAN subsystem options. ® BIOS • Intel BIOS (resident in the SPI Flash device) • Support for Advanced Configuration and Power Interface (ACPI), Plug and Play, and SMBIOS Expansion • Four PCI Conventional* bus connectors Capabilities • Two PCI Express x1 bus add-in card connectors • One PCI Express x16 bus add-in card connector Instantly Available • Support for PCI Local Bus Specification Revision 2.3 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 Hardware Monitor • Hardware monitoring and fan control ASIC Subsystem • Voltage sense to detect out of range power supply voltages • Thermal sense to detect out of range thermal values • Three fan connectors • Three fan sense inputs used to monitor fan activity • Fan speed control 10 Product Description 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 Auxiliary fan Additional fan connector for use in larger chassis connector IEEE-1394a IEEE-1394a controller and three IEEE-1394a connectors (one back panel connector, two front-panel connectors) Interface LAN subsystem The board provides one of the following: ® • Gigabit (10/100/1000 Mbits/sec) LAN subsystem using the Intel 82573V/82574V Gigabit Ethernet Controller ® • 10/100 Mbits/sec LAN subsystem using the Intel 82562GX Platform LAN Connect (PLC) device ® SATA RAID Intel 82801GR I/O Controller Hub (ICH7-R) for RAID support (levels 0,1, 0+1, and 5) on the SATA interface Allows add-in hard drive controllers (SCSI or other) to use the same LED as the SCSI Hard Drive onboard IDE controller. Activity LED Connector A component that enhances platform security Trusted Platform Module (TPM), revision 1.2 For information about Refer to Available configurations for the board Section 1.2, page 15 11