20 Quick Reference GuideDell Diagnostics Main Menu1 After the Dell Diagnostics loads and the Main Menu screen appears, click the button for the optionyou want.2 If a problem is encountered during a test, a message appears with an error code and a description of theproblem. Write down the error code and problem description and follow the instructions on thescreen.If you cannot resolve the error condition, contact Dell (see "Contacting Dell" in your User’s Guide).NOTE: The Service Tag for your computer is located at the top of each test screen. If you contact Dell,technical support will ask for your Service Tag.3 If you run a test from the Custom Test or Symptom Tree option, click the applicable tab described inthe following table for more information.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 1 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.Tab FunctionResults Displays the results of the test and any error conditionsencountered.Errors Displays error conditions encountered, error codes, andthe problem description.Help Describes the test and may indicate requirements forrunning the test.