Dell Precision T5400 User's Guide - Page 7
Reinstalling Software, Adding and Replacing Parts, Troubleshooting Software and Hardware Problems - error codes
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Diagnostic Light Codes Before POST 121 Diagnostic Light Codes During POST 123 Beep Codes 129 Error Messages 130 Dell Diagnostics 136 When to Use the Dell Diagnostics 136 Starting the Dell Diagnostics From Your Hard Drive 137 Starting the Dell Diagnostics From the Drivers and Utilities Disc 137 Dell Diagnostics Main Menu 138 11 Reinstalling Software 141 Drivers 141 What Is a Driver 141 Identifying Drivers 141 Reinstalling Drivers and Utilities 142 Troubleshooting Software and Hardware Problems in the Microsoft® Windows® XP and Microsoft Windows Vista™ Operating Systems 143 Restoring Your Operating System 144 Using Microsoft Windows System Restore . . . . 144 Using Dell™ PC Restore and Dell Factory Image Restore 146 Using the Operating System Disc 149 12 Adding and Replacing Parts 151 Before You Begin 151 Contents 7