The uninterruptible power supply (UPS) might be the failing component.

Perform the following:

1. Is the problem that the system has a UPS reference code, but the UPS does not have a fault code?
   • Yes: Continue with the next step.
   • No: Go to step 3.

2. Remove the UPS signal cable from the system connector. Does the system report a UPS reference code now?
   • No: Continue with the next step.
   • Yes: Replace the following, one at a time, until the problem is resolved, use the following table to determine the part number for the field replaceable unit (FRU):

     CCIN or FFC	Type and model	Part number	Description	Location code
     	8204-E8A	10N9369	System backplane	Un-P1
     	9406-MMA, 9117-MMA	10N8752	Service processor card (SPCN function for the system unit)	Un-P1-C11
     	UPS		Remote power controller (RPC)

     This ends the procedure.

3. Perform the following:
   1. Verify the UPS signal cable, between the UPS and the system, is connected and seated properly.
   2. Have the customer call the UPS provider for service if a problem is found.
   3. Call service support if the problem prevails after the UPS is verified as working correctly.

This ends the procedure.