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Power supply LED

This topic provides information about various power supply LED status and corresponding action suggestions.

  • The following minimal configuration is required for the node to start:
    • One processor in socket 1
    • One memory module in DIMM slot 4
    • One power supply in PSU slot 1
    • Three system fans

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

Figure 1. Power supply LED
Power supply LED
LEDDescription
1 Power supply status
The power supply status LED can be in one of the following states:

  • Green: The power supply is connected to the AC power source and working normally.

  • Off: The power supply is disconnected from the AC power source.

  • Slow blinking green (about one flash every second): The power supply is in PSU standby state with AC present, cold standby state, or always standby state.

  • Amber: The AC power cord is unplugged, AC power lost (with a second power supply in parallel still in AC power input power), or power supply has failed. To resolve the issue, replace the power supply.

  • Slow blinking amber (about one flash every second): Power supply warning events where the power supply continues to operate.