Dell Inspiron 3480, Service Manual, Page: 135 / 138

Identifier GUID-EE9A5D95-88BE-4EE7-983E-D97C680BDECD
Status Released
Enhanced Pre-Boot System Assessment (ePSA)
diagnostics
CAUTION: Use the ePSA diagnostics to test only your computer. Using this program with other computers may cause invalid
results or error messages.
The ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with the
BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device
groups allowing you to:
• Run tests automatically or in an interactive mode
• Repeat tests
• Display or save test results
• Run thorough tests to introduce additional test options to provide extra information about the failed device(s)
• View status messages that inform you if tests are completed successfully
• View error messages that inform you of problems encountered during testing
NOTE: Some tests for specific devices require user interaction. Always ensure that you are present at the computer terminal
when the diagnostic tests are performed.
Identifier GUID-0B893EED-EFBC-4831-A9C4-7298A7A9F619
Status Released
Running the ePSA diagnostics
1 Turn on your 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 at the bottom left corner.
Diagnostics front page is displayed.
5 Click 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 the diagnostic 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.
Identifier GUID-700A87A2-F7DE-45C3-8AAA-E6585D53E11B
Status Released
System diagnostic lights
Power 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-status light and hard-drive activity light.
Troubleshooting 135