Power supply issues

Symptom

The server will not power on.

Cause

  • The power supply cable is disconnected from the system board.

  • AC power is unavailable.

  • The power supply failed.

  • The power supply is in standby mode.

  • The power supply has exceeded the current limit.

  • The power supply is not supported on the server.

Action
  1. Verify that no loose connections exist.

    For more information, see Loose connections.

  2. Verify that the power supply is supported on the server.
  3. Check the system power LED to see if it indicates an issue.

    • If the system power LED is red, replace the power supply.

    • If the system power LED is amber, then the power supply is in standby mode.

    • If the system power LED is off, check the power source. Then, power on the server again.

      If the power source is working properly, and the LED remains off, replace the power supply.