Dell Precision 5540 Service Manual

Also see for Precision 5540: Owner's manual Technical guidebook External Display Connection Guide Owner's manual Owner's manual

Dell Precision 5540 Service Manual Manual pdf 47 page image

Solución de problemasEnhanced Pre-Boot System Assessment — ePSAdiagnosticsThe ePSA diagnostics (also known as system diagnostics) performs a complete check of your hardware. The ePSA is embedded with theBIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or devicegroups allowing you to:The ePSA diagnostics can be initiated by the FN+PWR buttons while powering on the computer.• 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 testingNOTA: Some tests for specific devices require user interaction. Always ensure that you are present at the computerterminal when the diagnostic tests are performed.Running the ePSA DiagnosticsInvoke diagnostics boot by either of the methods that are suggested below:1. Power on the computer.2. As the computer boots, press the F12 key when the Dell logo is displayed.3. In the boot menu screen, use Up/Down arrow key to select the Diagnostics option and then press Enter.NOTA: The Enhanced Pre-boot System Assessment window displays, listing all devices detected in the computer.The diagnostics starts running the tests on all the detected devices.4. Press the arrow in the lower-right corner to go to the page listing.The detected items are listed and tested.5. To run a diagnostic test on a specific device, press Esc and click Yes to stop the diagnostic test.6. Select the device from the left pane and click Run Tests.7. If there are any issues, error codes are displayed.Note the error code and contact Dell.or8. Shut down the computer.9. Press and hold the Fn key, while pressing the power button, and then release both.10. Repeat steps 3–7 above.5Solución de problemas 47

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