Produits de la Marque Dell

DellPrecision™Workstation490User'sGuide 
Notes, Notices, and Cautions 
Abbreviations and Acronyms 
For a complete list of abbreviations and acronyms, see the Glossary. 
IfyoupurchasedaDell™nSeriescomputer,anyreferencesinthisdocumenttoMicrosoft®
 
Windows®operating systems are not applicable.
 
Information in this document is subject to change without notice. 
©2006DellInc.Allrightsreserved. 
Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. 
Trademarks used in this text: Dell, the DELL logo, Inspiron, Dell Precision, Dimension, OptiPlex, Latitude, Dell TravelLite, PowerEdge, PowerVault, StrikeZone, PowerApp, and Dell 
OpenManage are trademarks of Dell Inc.; Intel, Pentium, SpeedStep, Xeon, and Celeron are registered trademarks of Intel Corporation; Microsoft and Windows are registered 
trademarks of Microsoft Corporation; Bluetooth is a registered trademark owned by Bluetooth SIG, Inc. and is used by Dell Inc. under license; ENERGY STAR is a registered 
trademark of the U.S Environmental Protection Agency.  
Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any 
proprietary interest in trademarks and trade names other than its own. 
Model DCTA 
August 2006 P/N KD769 Rev. A01 
Information About Your Computer 
About Your Computer 
Copying CDs and DVDs 
Advanced Features 
Before You Begin 
Removing the Computer Cover and Front Panel 
Chassis Intrusion Switch 
Memory 
Drives 
Changing Between Tower and Desktop Modes 
Cards 
Installing the Speaker (Optional) 
Processor 
Battery 
I/O Panel 
System Board 
Power Supply 
Replacing the Front Panel and Computer Cover 
Tools to Help Solve Problems 
Solving Problems 
Cleaning Your Computer 
Features of Microsoft®Windows®XP 
Getting Help 
FCC Notice (U.S. Only) 
Glossary  
NOTE: A NOTE indicates important information that helps you make better use of your computer. 
NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. 
 
CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. 