Dell YH242 owner manual Resolving Software and Hardware Incompatibilities, 100, 101, 102, 103

4Troubleshooting Tools . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Diagnostic Lights	65
Dell Diagnostics	68
Dell Diagnostics Main Menu	69
Drivers	70
What Is a Driver?	70
Identifying Drivers	70
Reinstalling Drivers	71
Resolving Software and Hardware Incompatibilities	72
Restoring Your Operating System	72
Using Microsoft Windows XP System Restore	72
Using Dell PC Restore by Symantec	74

5 Removing and Installing Parts	77
Before You Begin	77
Recommended Tools	77
Turning Off Your Computer	77
Before Working Inside Your Computer	78
Removing the Computer Cover	78
Inside View of Your Computer	80
System Board Components	81
Memory	82
Memory Overview	82
Installing Memory	83
Removing Memory	85
Cards	86
PCI Cards	86
PCI Express Cards	91
Drive Panels	100
Removing the Drive Panel	100
Removing the Drive-Panel Insert	101
Replacing the Drive-Panel Insert	102
Replacing the Drive Panel	103

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Contents