Look here for information about VPDPART symbolic FRU.

1. Is the reference code 1xxx 8402?
   • No: Continue with the next step.
   • Yes: Prior to exchanging any parts, verify that the processors cards are installed. If you are in test mode and have removed all of the processor cards, disregard this reference code. Otherwise, correct the processor cards. If the processor cards are installed correctly, exchange the service processor card, use the following table to determine the part number for the field replaceable unit (FRU):

     Note: If the reference code is associated with an I/O expansion unit, replace the I/O backplane in the I/O expansion unit.

     CCIN or FFC	Type and model	Part number	Description	Location code
     	9406-MMA, 9117-MMA	10N8752	Service processor card	Un-P1-C11
     	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.

2. Is the reference code 1xxx 8404, 8405, or 8406?
   • No: Continue with the next step.
   • Yes: Use the following table to find the correct action to take.

     Reference code	Action
     1xxx 8404	Processor card mismatch. Exchange processor card 2 in the primary drawer (top drawer). Use the table of processor card FRU part numbers at the end of this page to determine the part number for the field replaceable unit.
     1xxx 8405	Processor card mismatch. Exchange processor card 1 in a secondary unit. Use the table of processor card FRU part numbers at the end of this page to determine the part number for the field replaceable unit.
     1xxx 8406	Processor card mismatch. Exchange processor card 2 in a secondary unit. Use the table of processor card FRU part numbers at the end of this page to determine the part number for the field replaceable unit.

     This ends the procedure.

3. Is the reference code 1xxx 8409?
   • No: Continue with the next step.
   • Yes: No processor cards are installed. If you are in test mode and have removed all of the processor cards, disregard this reference code. Otherwise, correct the processor cards. If the processor cards are installed correctly, exchange all processor cards, use the table of processor card FRU part numbers at the end of this page to determine the part number for the field replaceable unit. This ends the procedure.

4. Is the reference code 1xxx 8413 or 8414?
   • No: Continue with the next step.
   • Yes: For a 9406-MMA or 9117-MMA use the reference code in the following table to find the FRU.

     Reference code	Action
     1xxx 8413	Exchange processor card 1. Use the table of processor card FRU part numbers at the end of this page to determine the part number for the field replaceable unit.
     1xxx 8414	Exchange processor card 2. Use the table of processor card FRU part numbers at the end of this page to determine the part number for the field replaceable unit.

     This ends the procedure.

5. Is the reference code 1xxx 8423 or 8424?
   • No: Continue with the next step.
   • Yes: For a 9406-MMA or 9117-MMA use the reference code in the following table to find the FRU part number.

     Reference code	Action
     1xxx 8423	Exchange processor 1. Use the table of processor card FRU part numbers at the end of this page to determine the part number for the field replaceable unit.
     1xxx 8424	Exchange processor 2. Use the table of processor card FRU part numbers at the end of this page to determine the part number for the field replaceable unit.

     If this replacement does not fix the problem, replace the system 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
     	9406-MMA, 9117-MMA	42R7352	I/O backplane	Un-P1

6. Is the 1xxx reference code 1xxx 911C?
   • No: Continue with the next step.
   • Yes: Two of the drawers in the multiple-drawer server have the same VPD information. Reset the system unique identifier in one of the drawers to resolve the problem. This ends the procedure.
7. Is the 1xxx reference code 1xxx 84A1?
   • No: Continue with the next step.
   • Yes: The wrong regulator backplane (system processor backplane) is installed or the VPD is not correct. Replace the system backplane in the failing drawer.

     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
     	9406-MMA, 9117-MMA	10N8550	System backplane	Un-P2

     This ends the procedure.
8. Is the 1xxx reference code 1xxx 84A2?
   • No: Continue with the next step.
   • Yes: The system backplane in the failing drawer is not the same part number as the system backplane in the primary drawer (top drawer). Replace the system 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
     	9406-MMA, 9117-MMA	10N8550	system backplane	Un-P2

     This ends the procedure.
9. Is the 1xxx reference code 1xxx 84A3?
   • No: Continue with the next step.
   • Yes: The wrong service processor card is installed or the VPD is not correct. Replace the service processor card in the failing drawer.

     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
     	9406-MMA, 9117-MMA	10N8752	Service processor assembly	Un-P1-C11

     This ends the procedure.
10. Is the 1xxx reference code 1xxx 84A4?
    • No: Continue with the next step.
    • Yes: The service processor card in the failing drawer is not the same part number as the service processor card in the primary drawer (top drawer). Replace the service processor card in the failing drawer with a service processor card that has the same FRU part number as the service processor card in the primary drawer (top drawer).

      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
      	9406-MMA, 9117-MMA	10N8752	Service processor assembly	Un-P1-C11

      This ends the procedure.