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Technical Reference Guide www.hp.com 1-1

Introduction

1.1 A b o u t t h i s G u i d e

This guide provides technical information about HP Compaq dc7800 Business PC personal

computers that feature Intel processors and the Intel Q35 Express chipset. This document

describes in detail the system's design and operation for programmers, engineers, technicians,

and system administrators, as well as end-users wanting detailed information.

The chapters of this guide primarily describe the hardware and firmware elements and primarily

deal with the system board and the power supply assembly. The appendices contain general data

such as error codes and information about standard peripheral devices such as keyboards,

graphics cards, and communications adapters.

This guide can be used either as an online document or in hardcopy form.

1.1.1 O n l i n e V i ew i n g

Online viewing allows for quick navigating and convenient searching through the document. A

color monitor will also allow the user to view the color shading used to highlight differential

data. A softcopy of the latest edition of this guide is available for downloading in .pdf file format

at the following URL:

www.hp.com

Viewing the file requires a copy of Adobe Acrobat Reader available at no charge from Adobe

Systems, Inc. at the following URL:

www.adobe.com

1.1. 2 H a r d c o py

A hardcopy of this guide may be obtained by printing from the .pdf file. The document is

designed for printing in an 8 ½ x 11-inch format.

1.2 Additional Information Sources

For more information on components mentioned in this guide refer to the indicated

manufacturers' documentation, which may be available at the following online sources:

■ HP Corporation: www.hp.com

■

Intel Corporation: www.intel.com

■

Standard Microsystems Corporation: www.smsc.com

■

Serial ATA International Organization (SATA-IO): www.serialATA.org.

■

USB user group: www.usb.org

1. 3 M o d e l N u m b e r i n g C o nv e n t i o n

The current model numbering convention for HP systems is shown as follows:

HP Compaq dc7800 Series User Manual

Questions and Answers: