Compaq W4000 manual Fsb I/F, Agp Mch, XMM1 XMM2 XMM3 Dimm

Technical Reference Guide

Chapter 3

PROCESSOR/

MEMORY SUBSYSTEM

3.Chapter 3 PROCESSOR/MEMORY SUBSYSTEM

3.1INTRODUCTION

This chapter describes the processor/memory subsystem of Compaq Deskpro Personal Computers featuring the Pentium 4 processor. These systems feature the Pentium 4 processor and the 845 chipset (Figure 3-1). The 82845 MCH component of the 845 chipset supports SDRAM memory of either the standard PC133 or the DDR type, depending on model.

Pentium 4

Processor

400-MHz		Cntl
64-Bit FSB
	FSB I/F
	82845		Memory		Mem. Bus
AGP
I/F	MCH			Cntlr.
	Hub I/F

Present in PC133 systems only.

Covered in Chapter 4

System Memory

XMM1 XMM2 XMM3

DIMM	DIMM	DIMM
In	Socket	Socket
Socket

Figure 3–1.Processor/Memory Subsystem Architecture

This chapter includes the following topics:
♦ Pentium 4 processor [3.2]		page 3-2
♦	Memory subsystem [3.3]	page 3-5
♦	Subsystem configuration {3.4]	page 3-8

Compaq Evo and Workstation Personal Computer 3-1

Featuring the Intel Pentium 4 Processor

Second Edition - January 2003