Light Pattern | Problem Description | Suggested Resolution |
|
|
|
| The computer is in a normal operating | None. |
| condition after POST. |
|
A B C D
= yellow = green = off
Dell Diagnostics
If you experience a problem with your computer, perform the checks in "Solving Problems" (see page 19) and run the Dell Diagnostics before you contact Dell for technical assistance. Running the Dell Diagnostics may help you resolve the problem without contacting Dell. If you do contact Dell, the test results can provide important information for Dell's service and support personnel.
The Dell Diagnostics allows you to:
•Perform express, extended, or custom tests on one or all devices
•Select tests based on a symptom of the problem you are having
•Choose how many times a test is run
•Display test results
•Suspend testing if an error is detected
•Access online help information that describes the tests and devices
•Receive status messages that tell you whether tests completed successfully
•Receive error messages if problems are detected
Starting the Dell Diagnostics
NOTICE: Only use the Dell Diagnostics to test your Dell™ computer. Using this program with other computers can result in error messages.
1Shut down and restart the computer.
2When the DELL™ logo appears, press <F12> immediately.
3If 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.
4When the boot device list appears, highlight Boot to Utility Partition and press <Enter>.
5When the Dell Diagnostics Main Menu appears, select the test you want to run (see page 44).
Advanced Troubleshooting
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