Chapter 2 System Overview

2.4SYSTEM ARCHITECTURE

The Compaq D315 and HP d325 feature an architecture based on the AMD Athlon XP processor and an NVidia NForce chipset (Figure 2-6).

The AMD Athlon XP processor features an x86-class CPU that uses a highly-pipelined architecture to process a high volume of data per clock cycle to provide exceptional performance in handling audio, video, and image files. Operating at speeds up to 2.13 GHz, the Athlon XP processor is optimized for the Microsoft Windows XP operating system.

The D315 model uses a Nvidia NForce 220 chipset while the d325 model uses the NForce2 420 chipset. Both chipsets include the following functions and features:

Athon XP processor support

Integrated Graphics Processor (IGP) providing:

Integrated GeForce MX-class graphics controller

AGP interface support for graphics upgrade

SDRAM controller supporting two DDR DIMMs

Media & Communication Processor (MCP) providing:

Two IDE controllers supporting up to four ATA100 storage devices

Six USB ports

AC link interface servicing the audio controller

PCI bus controller supporting up to three 32-bit 33-MHz PCI expansion devices

LPC bus interface serving the BIOS ROM and super I/O component

Table 2-1 lists the architectural differences between the D315 and d325 models:

Table 2-2.Feature Difference Matrix

Table 2-2.

Architectural Difference Matrix

Feature

Compaq D315

hp d325

Chipset type:

NForce 220

NForce2 420

North Bridge Component

IGP-64

IGP-128

South Bridge Component

MCP

MCP-2

FSB speed (max)

266 MHz

333 MHz

DIMM type support (max)

PC2100 DDR

PC2700 DDR

Standard graphics controller

Integrated GeForce2 MX

Integrated GeForce 4 MX

AGP level of support (max)

4X

8X

USB level of support (max)

1.1

2.0

Network Interface Controller

Separate PCI card

Integrated

Multibay support?

No

Yes

Hood Sense/Hood Lock function?

No

Yes

An STC LPC47B367 Super I/O Controller provides legacy PS/2 keyboard and mouse interfaces, serial and parallel interfaces, and diskette drive interface functions.

2-8Compaq D315 and hp d325 Personal Computers Featuring the AMD Athlon XP Processor

Second Edition – March 2003

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HP D315 manual System Architecture, Architectural Difference Matrix