Table A-1Diagnostic Front Panel LEDs and Audible Codes (continued)

Activity

Beeps

Possible Cause

Recommended Action

Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn on green then:

1. Check that the unit is plugged into a working AC outlet.

2. Ensure that the DC power cable is plugged into the I/O panel.

3. Replace the power supply.

Interpreting POST diagnostic front panel LEDs and audible codes 35