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Troubleshooting Tools and Utilities
Dell™OptiPlex™SX280User'sGuide
Dell Diagnostics
Power Adapter Light
System Lights
Diagnostic Lights
Beep Codes
Error Messages
Resolving Software and Hardware Incompatibilities
If you experience a problem with your computer, run the Dell Diagnostics and perform the checks in this section before you contact Dell for technical
assistance.
Dell Diagnostics
It is recommended that you print these procedures before you begin.
Enter system setup, review your computer's configuration information, and ensure that the device you want to test displays in system setup and is active.
Start the Dell Diagnostics from either your hard drive or from the Drivers and Utilities CD (also known as the ResourceCD).
Starting the Dell Diagnostics From Your Hard Drive
1. Shut down and restart the computer.
2. WhentheDELL™logoappears,press<F12>immediately.
If you wait too long and the Microsoft®Windows®logo appears, continue to wait until you see the Windows desktop. Then shut down your computer
through the Start menu and try again.
3. When the boot device list appears, highlight Boot to Utility Partition and press <Enter>.
4. When the Dell Diagnostics Main Menu appears, select the test you want to run.
Starting the Dell Diagnostics From the Drivers and Utilities CD
1. Insert the Drivers and Utilities CD.
2. Shut down and restart the computer.
When the DELL logo appears, press <F12> immediately.
If you wait too long and the Windows logo appears, continue to wait until you see the Windows desktop. Then shut down your computer through the
Start menu and try again.
CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide.
NOTICE: TheDellDiagnosticsworksonlyonDell™computers.
NOTE: If you see a message stating that no diagnostics utility partition has been found, run the Dell Diagnostics from your Drivers and Utilities CD.
NOTE: The next steps change the boot sequence for one time only. On the next start-up, the computer boots according to the devices specified in
system setup.