IBM-AUSTRIA - PC-HW-Support    30 Aug 1999

Status LEDs

•  Information panel
   For more information, see 'Information LED Panel'.
•  Hard disk drive trays
   For more information, see 'Controls and Indicators'.
•  Power supply
   For more information, see (below) 'Power Supply LEDs.'
•  Diagnostic panel
   For more information, see 'Diagnostics Panel LEDs'.
•  Processor board
   See 'Processor Board Component Locations'  for locations of the LEDs on the processor board.
•  System board
   See 'System Board Component Locations'  for locations of the LEDs on the system board.

Power Supply LEDs: The AC and DC Power LEDs on the power supply provide status information about the power supply. See 'Power Supplies' for the location of these LEDs.

The following table describes the AC and DC Power LEDs.

AC Power LED	DC Power LED	Description and Action
On	On	The power supply is on and operating correctly.
On	Off	There is a DC power problem. Possible causes: 1. The Power Control button on the front of the server is in the Off position. Action: Press the Power Control button to start the server. 2. The Power switch on the power supply is in the Off position. Action: Turn the Power switch to the On position. 3. The power supply has failed. Action: Replace the power supply.
Off	Off	There is an AC power problem. Possible causes: 1. There is no AC power to the power supply. Actions: Verify that: a. The power cord is properly connected to the server. b. The power outlet functions properly. 2. The power supply has failed. Action: Replace the power supply.

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