PWR1918

Refer to Locating FRUs for instructions for removing and replacing any FRUs called out by the following procedure.

1. Is the reference code 1xxx 8450?
   • No: Continue with the next step.
   • Yes: At least one processor VRM is missing. Inspect all of the processor cards and install the VRM(s) that is(are) missing (see Physical Locations). This ends the procedure.
2. Is the reference code 1xxx 2630?
   • No: Continue with the next step.
   • Yes: Replace VRM1A and VRM1B (which are one CRU/FRU) on processor card 1 (Un-P1-C13-C10) (see Physical Locations). This ends the procedure.
3. Is the reference code 1xxx 2633?
   • No Continue with the next step.
   • Yes: Replace the following, one at a time:
   1. Processor card 1 (Un-P1-C13-C10)
   2. Ethernet card (Un-P1-C6)
   This ends the procedure.
4. Is the reference code 1xxx 2640?
   • No: Continue with the next step.
   • Yes: Replace VRM1A and VRM1B (which are one CRU/FRU) on processor card 2 (Un-P1-C14-C10). This ends the procedure.
5. Is the reference code 1xxx 2643?
   • No: Continue with the next step.
   • Yes: Replace the following, one at a time:
   1. Processor card 2 (Un-P1-C14-C10)
   2. Ethernet card (Un-P1-C6)
6. Is the reference code 1xxx 2650?
   • No: Continue with the next step.
   • Yes: Replace VRM1A and VRM1B (which are one CRU/FRU) on processor card 3 (Un-P1-C15-C10). This ends the procedure.
7. Is the reference code 1xxx 2653?
   • No: Continue with the next step.
   • Yes: Replace the following, one at a time:
   1. Processor card 3 (Un-P1-C15-C10)
   2. Ethernet card (Un-P1-C6)
8. Is the reference code 1xxx 2660?
   • No: Continue with the next step.
   • Yes: Replace VRM1A and VRM1B (which are one CRU/FRU) on processor card 4 (Un-P1-C16-C10). This ends the procedure.
9. Is the reference code 1xxx 2663?
   • No: Continue with the next step.
   • Yes: Replace the following, one at a time:
   1. Processor card 4(Un-P1-C16-C10)
   2. Ethernet card (Un-P1-C6)
10. Is the reference code 1xxx 2622?
    • No: Continue with the next step.
    • Yes: Replace the following, if present, one at a time:
    1. Base RAID card (Un-P1-C11)
    2. Auxiliary RAID card (Un-P1-C10)
    3. System backplane (Un-P1)
    This ends the procedure.
11. Is the reference code 1xxx 2623?
    • No: Continue with the next step.
    • Yes: Replace the following, if present, one at a time:
    1. Base RAID card (Un-P1-C11)
    2. Auxiliary RAID card (Un-P1-C10)
    This ends the procedure.
12. Is the reference code 1xxx 2624?
    • No: Continue with the next step.
    • Yes: Replace the following, if present, one at a time:
    1. Ethernet card (Un-P1-C6)
    2. Base RAID card (Un-P1-C11)
    3. Auxiliary RAID card (Un-P1-C10)
    4. System backplane (Un-P1)
    5. DASD drives
    6. DASD and media backplane (Un-P2)
    This ends the procedure.
13. Is the reference code 1xxx 2625?
    • No: Continue with the next step.
    • Yes: Replace the following, if present, one at a time:
    1. Ethernet card (Un-P1-C6)
    2. Base RAID card (Un-P1-C11)
    3. Auxiliary RAID card (Un-P1-C10)
    4. System backplane (Un-P1)
    5. TPMD card (Un-P1-C12)
    This ends the procedure.
14. Is the reference code 1xxx 2626?
    • No: Continue with the next step.
    • Yes: Replace the following, if present:
    1. Ethernet card (Un-P1-C6)
    This ends the procedure.
15. Does the problem persist?
    • No: This ends the procedure.
    • Yes: Replace the system backplane (Un-P1). This ends the procedure.