This document updates information contained in your PowerEdge system documentation. It describesconditions for installing multiple microprocessors in your system.To take advantage of future options in speed and functionality, you can add a second processor orreplace either the primary or secondary processor. For information on adding and replacing aprocessor, see your Microprocessor Upgrade Installation Guide. To identify the primary processor connector (labeled PROC1) on the system board, see the systemboard features illustration in your Installation and Troubleshooting Guide.The following are several examples of processor upgrade installations:• Upgrading a single processor: install the new upgrade processor in the primary connector.• Upgrading from a single to dual processor configuration: move the original processor from theprimary to the secondary connector; then, install the new upgrade processor in the primaryconnector.• Upgrading a dual processor configuration: install the new upgrade processor in the primaryconnector.Information in this document is subject to change without notice.© 2001 Dell Computer Corporation. All rights reserved. Printed in the U.S.A.Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictlyforbidden.Trademarks used in this text: Dell, the DELL logo, and PowerEdge are trademarks of Dell Computer Corporation.Other trademarks and trade names may be used in this document to refer to either the entities claiming the marksand names or their products. Dell Computer Corporation disclaims any proprietary interest in trademarks and tradenames other than its own.1H654eb1.fm Page 1 Tuesday, July 3, 2001 4:00 PM