Light Path Diagnostics Leds - Lenovo System x3550 M3 Problem Determination And Service Manual

• Reset button: Press this button to reset the server and run the power-on self-test (POST). You might have
to use a pen or the end of a straightened paper clip to press the button. The Reset button is in the lower-
right corner of the light path diagnostics panel.

Light path diagnostics LEDs

The following table describes the LEDs on the light path diagnostics panel and suggested actions to correct
the detected problems.
Note: Check the system-error log or system event log for additional information before replacing a FRU.
System x3550 M3Problem Determination and Service Guide
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