Dell DCSLF 4 T roubleshooting T ools

6Contents
Video and Monitor Problems . . . . . . . . . . . . . . 77
If the screen is blank . . . . . . . . . . . . . . . . 77
If the screen is difficult to read . . . . . . . . . . . 78
4 Troubleshooting Tools . . . . . . . . . . . . . . . 79
Power Lights . . . . . . . . . . . . . . . . . . . . . . . 79
Beep Codes . . . . . . . . . . . . . . . . . . . . . . . 80
System Messages . . . . . . . . . . . . . . . . . . . . 82
Dell Diagnostics . . . . . . . . . . . . . . . . . . . . . 84
When to Use the Dell Diagnostics . . . . . . . . . 84
Starting the Dell Diagnostics From Your
Hard Drive . . . . . . . . . . . . . . . . . . . . . 84
Starting the Dell Diagnostics From the Drivers
and Utilities Media . . . . . . . . . . . . . . . . . 85
Dell Diagnostics Main Menu . . . . . . . . . . . . 85
Drivers . . . . . . . . . . . . . . . . . . . . . . . . . . 87
What Is a Driver? . . . . . . . . . . . . . . . . . . 87
Identifying Drivers . . . . . . . . . . . . . . . . . 88
Reinstalling Drivers and Utilities . . . . . . . . . . 88
Restoring Your Operating System . . . . . . . . . . . . 91
Using Microsoft Windows System Restore . . . . 92
Using Dell PC Restore and Dell Factory
Image Restore . . . . . . . . . . . . . . . . . . . 93
Using the Operating System Media . . . . . . . . 96
Troubleshooting Software and Hardware
Problems . . . . . . . . . . . . . . . . . . . . . . 97