Dell OptiPlex 990 (Early 2011) - Manual (Page 2)

Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better use of your
computer.
CAUTION: A CAUTION indicates potential damage to hardware or loss of data if
instructions are not followed.
WARNING: A WARNING indicates a potential for property damage, personal injury, or
death.
Information in this publication is subject to change without notice.
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2011 Dell Inc. All rights reserved.
Reproduction of these materials in any manner whatsoever without the written permission of Dell Inc. is
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Trademarks used in this text: Dell
™ , the DELL logo, Dell Precision ™ , Precision ON ™ ,ExpressCharge ™ ,
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Other trademarks and trade names may be used in this publication to refer to either the entities claiming the
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2011 — 06
Rev. A00