Vostro 5402 Service Manual

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System board built-in self-test (M-BIST)

About this task

Image: System board built-in self-test (M-BIST)

Steps

  1. Press and hold both the M key and the power button to initiate M-BIST.
  2. The battery-status light illuminates in amber when there is a system board failure.
  3. Replace the system board to fix the issue.
    NOTE:The battery status LED does not illuminate if the system board is functioning properly.

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