Dell Precision™ Workstation T1500 Service ManualNotes, Cautions, and WarningsIf 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.© 2009 Dell Inc. All rights reserved.Reproduction of this material in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.Trademarks used in this text: Dell, the DELL logo, Dell Precision are trademarks of Dell Inc.; ATI FirePro is a trademark of Advanced Micro Devices, Inc; Intel a n d Core are eithertrademarks or registered trademarks of Intel Corporation; Blu-ray Disc is a trademark of the Blu-ray Disc Association; Microsoft, Windows, Windows Vista, and the Windows Vista startbutton are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries.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 anyproprietary interest in trademarks and trade names other than its own.July 2010 Rev. A01Working on Your ComputerRemoving and Replacing PartsSystem-Board LayoutSpecificationsDiagnosticsSystem SetupPasswordsNOTE: 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.