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DC power-supply LEDs

Use this information to view DC power-supply LEDs.

The following illustration shows the locations of the power-supply LEDs on the dc power supply.
Figure 1. DC power-supply LEDs
DC power-supply LEDs

The following table describes the problems that are indicated by various combinations of the power-supply LEDs on a dc power supply and suggested actions to correct the detected problems.

DC power-supply LEDsDescriptionActionNotes
IN OKOUT OKError (!)
OnOnOffNormal operation  
OffOffOffNo dc power to the server or a problem with the dc power source.
  1. Check the dc power to the server.
  2. Make sure that the power cord is connected to a functioning power source.
  3. Restart the server. If the error remains, check the power-supply LEDs.
  4. Replace the power-supply.
This is a normal condition when no dc power is present.
OffOffOnNo dc power to the server or a problem with the dc power source and the power-supply had detected an internal problem.
  • Make sure that the power cord is connected to a functioning power source.
  • Replace the power supply (see the documentation that comes with the power supply for instructions).
 
OffOnOffFaulty power-supplyReplace the power supply. 
OffOnOnFaulty power-supplyReplace the power supply. 
OnOffOffPower-supply not fully seated, faulty system board, or faulty power-supply
  1. (Trained service technician only) Reseat the power supply.
  2. If a power channel error LED on the system board is not lit, replace the power-supply (see the documentation that comes with the power supply for instructions).
  3. If a power channel error LED on the system board is lit, (trained service technician only) replace the system board.
Typically indicates a power-supply is not fully seated.
OnOffOnFaulty power-supplyReplace the power supply. 
OnOnOnPower-supply is faulty but still operationalReplace the power supply.