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.

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. © 2003 Dell Computer Corporation. All rights reserved.

Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, Inspiron, Dell Precision, Dimension, OptiPlex, Dell OpenManage, and Latitude are trademarks of Dell Computer Corporation; Intel, Pentium, and Celeron are registered trademarks and Xeon is a trademark of Intel Corporation; Microsoft, MS-DOS, Windows NT, and Windows are registered trademarks of Microsoft Corporation; IBM and OS/2 are registered trademarks of International Business Machines Corporation; ENERGY STAR is a registered trademark of the U.S. Environmental Protection Agency. As an ENERGY STAR partner, Dell Computer Corporation has determined that this product meets the ENERGY STAR guidelines for energy efficiency.

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 Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.

Models: WHL and WHM

April 2003

P/N 6T345

Rev. A03

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Dell PRECISION WORKSTATION 450 manual