• View status messages that inform you if tests are completed successfully• View error messages that inform you of problems encountered during testingCAUTION: Use the system diagnostics to test only your computer. Usingthis program with other computers may cause invalid results or errormessages.NOTE: Some tests for specific devices require user interaction. Alwaysensure that you are present at the computer terminal when the diagnostictests are performed.For more information, see Dell EPSA Diagnostic 3.0.Running the ePSA diagnostics1 Power-on the computer.2 As the computer boots, press the F12 key as the Dell logo appears.3 On the boot menu screen, select the Diagnostics option.4 Click the arrow key at the bottom left corner.Diagnostics front page is displayed.5 Press the arrow in the lower-right corner to go to the page listing.The items detected are listed.6 To run a diagnostic test on a specific device, press Esc and click Yes to stop thediagnostic test.7 Select the device from the left pane and click Run Tests.8 If there are any issues, error codes are displayed.Note the error code and validation number and contact Dell.System diagnostic lightsPower and battery-status light/hard-drive activity light: Indicates the battery-charge status or the hard-drive activity.NOTE: Press Fn+H to toggle this light between power and battery-statuslight and hard-drive activity light.Hard-drive activity lightTurns on when the computer reads from or writes to the hard drive.Power and battery-status lightIndicates the power and battery-charge status.112
