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Dell Precision 7720 Owner's Manual

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Testing memory using ePSA

  1. Turn on or restart your computer.
  2. Press F12 or press Fn+PWR to invoke the ePSA diagnostics.
    The PreBoot System Assessment (PSA) starts on your computer.
    NOTE If you wait too long and the operating system logo appears, continue to wait until you see the login screen/desktop screen. Turn off the computer and try again.
If the memory test results in 25 or less errors, then the RMT basic feature automatically fixes the issues. The test will indicate a pass result since the defect(s) have been removed. If the memory test results in 26 - 50 errors, the RMT basic feature masks the defective memory blocks and results in pass with no memory replacement requirement. If the memory test results in more than 50 errors, then the test is stalled and the result indicates that memory module replacement is required.

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