Troubleshooting
Topics:
• Enhanced Pre-Boot System Assessment — ePSA diagnostics
•
Diagnostics
• Power-Supply Unit Built-in Self-Test
• Diagnostic error messages
• System error messages
• Recovering the operating system
• Real Time Clock—RTC reset
• Backup media and recovery options
• WiFi power cycle
Enhanced Pre-Boot System Assessment — ePSA
diagnostics
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
CAUTION:
Use the system diagnostics to test only your computer. Using this program with other computers
may cause invalid results or error messages.
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.
Running the ePSA Diagnostics
1. Invoke diagnostics boot by either of the methods suggested above
2. Once on one time boot menu use up/down arrow key to navigate to ePSA or diagnostics and press <return> key to launch
Fn+PWR will flash diagnostics boot selected on screen and launch ePSA/diagnostics directly.
3. On the boot menu screen, select the Diagnostics option.
4. Press the arrow in the lower-right corner to go to the page listing.
The items detected are listed and will be tested
5. If there are any issues, error codes are displayed.
Note the error code and validation number and contact Dell.
To run a diagnostic test on a specific device
1. Press Esc and click Yes to stop the diagnostic test.
2. Select the device from the left pane and click Run Tests.
3. If there are any issues, error codes are displayed.
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