50 Solving Problemsw w w . d e l l . c o m | s u p p o r t . d e l l . c o m 5 When the boot device list appears, highlight Diagnostics and press .The computer runs the Pre-boot System Assessment, a series of initial tests of your systemboard, keyboard, hard drive, and display.• During the assessment, answer any questions that appear.• If a failure is detected, the computer stops and beeps. To stop the assessment and restartthe computer, press ; to continue to the next test, press ; to retest thecomponent that failed, press .• If failures are detected during the Pre-boot System Assessment, write down the errorcode(s) and contact Dell before continuing on to the Dell Diagnostics.If the Pre-boot System Assessment completes successfully, you receive the message BootingDell Diagnostic Utility Partition. Press any key to continue.6 Press any key to start the Dell Diagnostics from the diagnostics utility partition on your harddrive.7 When the Dell Diagnostics Main Menu appears, select the test you want to run.Dell Diagnostics Main Menu1 After the Dell Diagnostics loads and the Main Menu screen appears, click the button for theoption you want.2 If a problem is encountered during a test, a message appears with an error code and adescription of the problem. Write down the error code and problem description and followthe instructions on the screen.If you cannot resolve the error condition, contact Dell.NOTE: The Service Tag for your computer is located at the top of each test screen. If you contactDell, technical support will ask for your Service Tag.Option FunctionExpress Test Performs a quick test of devices. This test typically takes10 to 20 minutes and requires no interaction on yourpart. Run Express Test first to increase the possibility oftracing the problem quickly.Extended Test Performs a thorough check of devices. This test typicallytakes an hour or more and requires you to answerquestions periodically.Custom Test Tests a specific device. You can customize the tests youwant to run.Symptom Tree Lists the most common symptoms encountered andallows you to select a test based on the symptom of theproblem you are having.
