4
Diagnostics
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.
1.
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.
The
Enhanced Pre-boot System Assessment
window is displayed, listing all devices detected in the
computer. The diagnostics starts running the tests on all the detected devices.
4.
If you wish to run a diagnostic test on a specific device, press <Esc> and click
Yes
to stop the
diagnostic test.
5.
Select the device from the left pane and click
Run Tests
.
6.
If there are any issues, error codes are displayed.
Note the error code and contact Dell.
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