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
®
915P Chipset...................................................................................................... 26
1.8 PCI Express Connectors.............................................................................................. 28
1.9 I/O Controller................................................................................................................ 29
1.10 Audio Subsystem ......................................................................................................... 30
1.11 LAN Subsystem ........................................................................................................... 32
1.12 Hardware Management Subsystem............................................................................. 34
1.13 Power Management ..................................................................................................... 38
1.14 Trusted Platform Module (Optional) ............................................................................. 46
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: D915PGN and D915PSY. The Desktop Boards
are identical with the exception of the items listed in Table 1.
Table 1. Summary of Board Differences
D915PGN
• ATX Form Factor
• Four PCI Conventional bus connectors
• Two PCI Express* x1 bus add-in card connectors
• Three chassis fan connectors (front chassis, rear chassis 1, and rear chassis 2)
D915PSY
• microATX Form Factor
• Two PCI Conventional bus connectors
• One PCI Express x1 bus add-in card connector
• Two chassis fan connectors (front chassis and rear chassis)
11
