System Overview

2.4 System Architecture

The systems covered in this guide feature an architecture based on the Intel Q965 Express chipset (Figure 2-13). All systems covered in this guide include the following key components:

■Intel Pentium 4, Pentium D, or Core 2 Duo processor.

■Intel Q965 Express chipset - Includes Q965 GMCH north bridge and 82801 ICH8-DO south bridge

■SMC SCH5317 super I/O controller supporting PS/2 keyboard and mouse peripherals

■ALC262 audio controller supporting line in, line out, microphone in, and headphones out

■Intel 82566DM 10/100/1000 network interface controller

The Q965 chipset provides a major portion of system functionality. Designed to compliment the latest Intel processors, the Q965 GMCH intefaces with the processor through a 533/800/1066-MB Front-Side Bus (FSB) and communicates with the ICH8-DO component through the Direct Media Interface (DMI). The integrated graphics controller of the Q965 may be upgraded through a PCI Express x16 graphics slot. All systems include at least one PCI 2.3 slot and feature as standard a serial ATA (SATA) hard drive. The USDT model supports a Slimline Optical Drive through a legacy parallel ATA 100 interface.

Table 2-3 lists the differences between models by form factor.

Table 2-3.

Architectural Differences By Form Factor

Model

USDT

SFF

ST

MT

CMT

 

 

 

 

 

 

Memory sockets

3

4

4

4

4

 

 

 

 

 

 

PCI Express x16

Yes [1]

Yes [2]

Yes [2]

Yes

Yes

graphics slot?

 

 

 

 

 

 

 

 

 

 

 

# of PCI Express x1

0

Yes [2]

Yes [2]

Yes

Yes

slots

 

 

 

 

 

 

 

 

 

 

 

# of PCI 2.3 slots

1 [3]

2 [4]

2 [4]

2

4

 

 

 

 

 

 

Serial / parallel ports

Optional [5]

Standard [6]

Standard [6]

Standard [6]

Standard [6]

 

 

 

 

 

 

SATA interfaces

1

3

3

4

4

 

 

 

 

 

 

Notes:

[1]Supports an ADD2 card in the reverse-layout. or a PCIe x16 graphics card (with PCIe riser card installed)

[2]Slot not accessible if PCI riser is installed.

[3]Full-height slot (requires PCI riser)

[4]Low-profile slots without PCI riser, full-height slots with optional PCI riser

[5]Requires adapter.

[6]2nd serial port requires adapter

 

Technical Reference Guide

www.hp.com

2-17