3

Processor/Memory Subsystem

3.1Introduction

This chapter describes the processor/memory subsystem. These systems include an Intel Celeron D, Pentium 4, Pentium D, or Core 2 Duo processor and the Q965 chipset (Figure 3-1). These models support PC2-6400 and PC2-5300 DDR2 DIMMs.

Intel

Pentium

Processor

FSB I/F

Intel

Q965 SDRAM

GMCH Cntrl

Note:

[1] Not present on USDT form factor.

 

XMM1

 

XMM2

 

Ch A

 

Ch A

 

DIMM

 

DIMM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ch B

 

Ch B

 

DIMM

 

DIMM

 

 

 

 

[1]

XMM3

 

XMM4

Figure 3-1. Processor/Memory Subsystem Architecture

This chapter includes the following topics:

■Intel Pentium processor (3.2)

■Memory subsystem (3.3)

 

Technical Reference Guide

www.hp.com

3-1