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Dell XPS 720 - Page 5

Dell XPS 720
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Contents 5
Diagnostic Lights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Beep Codes
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
System Messages
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70
Dell Diagnostics
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
When to Use Dell Diagnostics
. . . . . . . . . . . . . . . . . . . . . . . 72
Starting Dell Diagnostics From Your Hard Drive
. . . . . . . . . . . . . . 72
Starting Dell Diagnostics From the Drivers and Utilities Media
. . . . . . 73
Dell Diagnostics Main Menu
. . . . . . . . . . . . . . . . . . . . . . . . 74
Drivers
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
What Is a Driver?
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Identifying Drivers
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Reinstalling Drivers and Utilities
. . . . . . . . . . . . . . . . . . . . . . 76
Using Windows Device Driver Rollback
. . . . . . . . . . . . . . . . . . 76
Using the Drivers and Utilities Media
. . . . . . . . . . . . . . . . . . . . 76
Restoring Your Operating System
. . . . . . . . . . . . . . . . . . . . . . . . 78
Using Microsoft
Windows
System Restore. . . . . . . . . . . . . . . . . 78
Using Dell PC Restore and Dell Factory Image Restore
. . . . . . . . . . 79
Using the Operating System Media
. . . . . . . . . . . . . . . . . . . . . 82
Troubleshooting Software and Hardware Problems
. . . . . . . . . . . . 83
5 Removing and Installing Parts. . . . . . . . . . . . . . . . . . . . . 85
Before You Begin. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Recommended Tools
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Preparing to Work Inside Your Computer
. . . . . . . . . . . . . . . . . . 85
Removing the Computer Cover
. . . . . . . . . . . . . . . . . . . . . . . . . . 86
Inside View of Your Computer
. . . . . . . . . . . . . . . . . . . . . . . 88
System Board Components
. . . . . . . . . . . . . . . . . . . . . . . . . 89
Memory
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
DDR2 Memory Overview
. . . . . . . . . . . . . . . . . . . . . . . . . . 90
Addressing Memory Configurations
. . . . . . . . . . . . . . . . . . . . 91
Installing Memory
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Removing Memory
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93

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