Datasheet

1 Product Description

What This Chapter Contains

1.1 PCI Bus Terminology Change......................................................................................11

1.2 Board Differences ........................................................................................................11

1.3 Overview ......................................................................................................................12

1.4 Online Support .............................................................................................................19

1.5 Processor.....................................................................................................................19

1.6 System Memory ...........................................................................................................20

1.7 Intel

925X Chipset......................................................................................................25

1.8 PCI Express Connectors..............................................................................................28

1.9 Auxiliary Power (AUX PWR) Output Connector...........................................................28

1.10 I/O Controller................................................................................................................29

1.11 Audio Subsystem .........................................................................................................31

1.12 LAN Subsystem ...........................................................................................................35

1.13 Hardware Management Subsystem.............................................................................37

1.14 Power Management.....................................................................................................40

1.1 PCI Bus Terminology Change

Previous generations of Intel

Desktop Boards used an add-in card connector referred to as PCI.

This generation of Intel Desktop Boards adds a new technology for add-in cards: PCI Express*.

The 32-bit parallel bus previously referred to as PCI is now called PCI Conventional.

1.2 Board Differences

This TPS describes these Intel Desktop Boards: D925XECV2 and D925XEBC2. The Desktop

Boards are identical with the exception of the items listed in Table 1.

Table 1. Summary of Board Differences

D925XECV2

• ATX Form Factor (10.20 inches by 9.60 inches [259.08 millimeters by

243.84 millimeters])

• Four PCI Conventional bus add-in card connectors

• Two PCI Express x1 bus add-in card connectors

• Auxiliary rear fan connector

• Option for auxiliary power output connector

• Option for SCSI hard drive indicator LED

• Option for Trusted Platform Module (TPM)

D925XEBC2

• microATX Form Factor (9.60 inches by 9.60 inches [243.84 millimeters by

243.84 millimeters])

• Two PCI Conventional bus add-in card connectors

• One PCI Express x1 bus add-in card connector