Dell Latitude 3500 Service Manual

M-BIST

M-BIST is the system board's built-in self-test diagnostics tool that improves the diagnostics accuracy of system board embedded controller (EC) failures. M-BIST can be manually initiated before POST.

NOTE: M-BIST can be manually initiated before POST(Power On Self Test).

How to run M-BIST?

M-BIST must be initiated on the system from a power-off state that is either connected to AC power or with battery only.

  1. Press and hold both the M key on the keyboard and the power button to initiate M-BIST.
  2. With both the M key and thepower button that is held down, the battery indicator LED may exhibit two states.
    1. OFF: No fault detected with the system board.
    2. SOLID AMBER: Indicates a problem with the system board.

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