Running The Self-Test - HP 200 Series Hardware Support Document

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Troubleshooting and Diagnostics
Running the Self-test
To run the turn-on self-test, follow this procedure:
1. Turn the computer on and observe the self-test LED display.
Self-test LEDs Location
All the LEOs should turn on, then turn off in sequence from back to front. Then they should start
displaying test numbers. If the LEOs fail to go through this routine or display meaningless data, not
enough of the computer is functioning for the self-test to produce results. Refer to the initial
troubleshooting procedure.