Dell PowerEdge FX2 and FX2s Enclosure Owner's Manual

Troubleshooting power supply unit mismatch

The PowerEdge FX2 chassis unit supports various power supply unit (PSU) models. Instances of PSU mismatch may occur when mixing different PSU models in a system configuration.

1. The system checks for a PSU mismatch following an AC power cycle or when a replacement PSU is connected.
2. The LED indicator in the handle of the PSU flashes green several times then turns off, this sequence indicates that there is a PSU mismatch.
   NOTE: A critical alert message is generated in the chassis management controller (CMC) logs. The log provides information on the PSU redundancy status and the log also indicates if the PSU is incompatible with the other installed PSUs.
3. Replace the incompatible PSU with a known good PSU.
4. If the problem persists, see Getting Help.