If you receive symbolic FRU FWPCI5, perform the following procedure:

1. Is a location code associated with the checkpoint?
   • No: go to PFW1548: Memory and processor subsystem problem isolation procedure, or see "PFW1548: Memory and processor subsystem problem isolation procedure" in the service guide for the server. This ends the procedure.
   • Yes: Continue with the next step.
2. Replace the following, one at a time, until the problem is resolved:
   1. The FRU identified by the location code, see the system unit service guide for the FRU part numbers.
   2. I/O backplane, 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	42R7352	I/O backplane	Un-P1
      	5790, 7311-D11	80P6626	I/O backplane	Un-P1
      	0595, 5095, 7311-D20	39J0515	I/O backplane	Un-P1
      	5796, 7314-G30	10N7677	I/O backplane	Un-P1
      	5094	39J3058	I/O backplane	Un-CB1

      This ends the procedure.