3

Processor/Memory Subsystem

3.1Introduction

This chapter describes the processor/memory subsystem. These systems feature the Intel Pentium 4 processor and the 915G chipset (Figure 3-1). The dx6100 and dc7100 models support PC2700 or PC3200 DDR memory and come standard with PC3200 DIMMs installed. The dx6120 models support PC2-4300 DDR2 DIMMs only.

Pentium 4

Processor

FSB I/F

82915G

SDRAM

GMCH

Cntrl

 

 

Note:

[1] SFF, ST, MT, and CMT models only.

XMM1

 

XMM2 [1]

Ch A

 

Ch A

 

DIMM

 

DIMM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Ch B

 

Ch B

DIMM

 

DIMM

 

 

 

XMM3

 

XMM4

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 3-4

Technical Reference Guide

361834-002

3-1