Troubleshooting
Topics:
• SupportAssist diagnostics
•
Display built-in self test
• Diagnostics
• Recovering the operating system
• Flashing BIOS (USB key)
• Flashing the BIOS
• WiFi power cycle
• Flea power release
SupportAssist diagnostics
About this task
The SupportAssist diagnostics (previously known as ePSA diagnostics) performs a complete check of your hardware. The
SupportAssist diagnostics is embedded in the BIOS and is launched by it internally. The SupportAssist diagnostics provides a set
of options for particular devices or device groups. It allows 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 and provide extra information about the failed device(s)
● View status messages that indicate if the tests are completed successfully
● View error messages that indicate if problems were encountered during the test
NOTE:
Some tests are meant for specific devices and require user interaction. Ensure that you are present in front of the
computer when the diagnostic tests are performed.
For more information, see SupportAssist Pre-Boot System Performance Check.
Display built-in self test
About this task
The following procedure provides the instructions on how to run the built-in self test for the display:
Steps
1. Turn off your computer.
2. Press and hold the display built-in self test button.
3. Press and hold the power button.
4. Release the power button.
5. Hold the display built-in self test button until the test starts.
Diagnostics
Power status indicator light: Indicates the power status.
Solid amber—The system is unable to boot to the operating system. This indicates that the power supply or another device in
the system is failing.
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