Troubleshooting 792 After you have selected the Test System option from the main menu, the following menu appears.NOTE: It is recommended that you select Extended Test from the menu below to run a more thoroughcheck of devices in the computer.3 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 contact Dell (see "Contacting Dell"on page 137).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.4 If you run a test from the Custom Test or Symptom Tree option, click the applicable tabdescribed in the following table for more information.Option FunctionTest Memory Runs the stand-alone memory testTest System Runs System DiagnosticsExit Exits the DiagnosticsOption FunctionExpress Test Performs a quick test of devices in thesystem. This typically can take 10 to 20minutes.Extended Test Performs a thorough check of devices inthe system. This typically can take anhour or more.Custom Test Use to test a specific device orcustomize the tests to be run.Symptom Tree This option allows you to select testsbased on a symptom of the problem youare having. This option lists the mostcommon symptoms.Tab FunctionResults Displays the results of the test and anyerror conditions encountered.Errors Displays error conditions encountered,error codes, and the problemdescription.