Reference Guide

Notes

NOTE: A NOTE indicates important information that helps you make better use of

your computer.

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Information in this publication is subject to change without notice.

Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc.

is strictly forbidden.

Trademarks used in this text: Dell™, the DELL logo, OptiPlex™, Precision™, Latitude ON™, and

Latitude™

are trademarks of Dell Inc. Microsoft

and Windows

are either trademarks or registered

trademarks of Microsoft Corporation in the United States and/or other countries. AMD® is a registered

trademark and AMD Opteron™, AMD Phenom™, and AMD Sempron™ are trademarks of Advanced

Micro Devices, Inc. Intel

is a registered trademark of Intel Corporation in the U.S. and other countries.

Red Hat

and Red Hat Enterprise Linux

are registered trademarks of Red Hat, Inc. in the United

States and other countries.

Other trademarks and trade names may be used in this publication 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.

2011-05