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POWER7 information

PWR1918

The server detected an error in the power system.

See System FRU locations for information about FRU locations for the system that you are servicing.

Select the system that you are servicing and then perform the indicated PWR1918 procedure.

8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D
8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D
8233-E8B, 8236-E8C
8248-L4T, 8408-E8D, 9109-RMD
8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD

Table 1. For 8202-E4B, 8202-E4C, 8202-E4D, 8205-E6B, 8205-E6C, or 8205-E6D, use the following table to determine the action to perform.
Reference code Action
1xxx 2611 Replace the following, if present, one at a time, and in the order listed:
  1. System backplane (Un-P1)
  2. PCIe riser (Un-P1-C1)
  3. Disk drive backplane (Un-P2)
1xxx 2622 Replace the following, if present, one at a time, and in the order listed:
  1. System backplane (Un-P1)
  2. RAID card (Un-P1-C13 or Un-P1-C14 or Un-P1-C19)
  3. PCIe riser (Un-P1-C1)
1xxx 2623 Replace the following, if present, one at a time, and in the order listed:
  1. System backplane (Un-P1)
  2. RAID battery (Un-P1-C14-E1 or Un-P1-C19-E1)
  3. RAID card (Un-P1-C13 or Un-P1-C14 or Un-P1-C19)
  4. PCIe riser (Un-P1-C1)
  5. Disk drive backplane (Un-P2)
1xxx 2625 Replace the following, if present, one at a time, and in the order listed:
  1. System backplane (Un-P1)
  2. RAID battery (Un-P1-C14-E1 or Un-P1-C19-E1)
  3. RAID card (Un-P1-C13 or Un-P1-C14 or Un-P1-C19)
  4. HEA adapter (Un-P1-C3)
  5. Disk drive backplane (Un-P2)
1xxx 2626 Replace the following, if present, one at a time, and in the order listed:
  1. System backplane (Un-P1)
  2. RAID card (Un-P1-C13 or Un-P1-C14 or Un-P1-C19)
  3. HEA adapter (Un-P1-C3)
  4. PCIe riser (Un-P1-C1)
1xxx 2628 Replace the system backplane (Un-P1).
1xxx 2691 Perform the following steps:
  1. Remove one of the memory cards that has not already been removed in this procedure and replace it with a new memory card.
  2. Power on the system. See Powering on and powering off the system for information on starting and stopping the system.
  3. Is reference code 1xxx 2691 logged again?
    Yes:
    Continue with the next step.
    No:
    The memory card that was replaced was the failing item. This ends the procedure.
  4. Have all of the memory cards been replaced?
    Yes:
    Replace the system backplane at location Un-P1. This ends the procedure.
    No:
    Reinstall the original memory card and repeat this procedure.
1xxx 8450 At least one VRM is missing from the system unit. Inspect all of the processor cards and memory cards and install the VRMs that are missing. See System FRU locations for FRU location information for the system that you are servicing.
1xxx 8453 There is an extra processor regulator in the system. Remove the extra regulator.
1xxx 8454 A fan at location Un-A3 is installed in a single-socket system. This configuration is not valid. Remove the fan at location Un-A3.
1xxx 8457 and 1xxx 8458 Low power processor VRMs were installed on the system. The system requires high power processor VRMs. Replace the processor VRMs with the correct part number.
Table 2. For 8231-E2B, 8231-E1C, 8231-E1D, 8231-E2C, 8231-E2D, or 8268-E1D, use the following table to determine the action to perform.
Reference code Action
1xxx 2611 Replace the following, if present, one at a time, and in the order listed:
  1. System backplane (Un-P1)
  2. Disk drive backplane (Un-P2)
1xxx 2622 Replace the following, if present, one at a time, and in the order listed:
  1. System backplane (Un-P1)
  2. RAID card (Un-P1-C12 or Un-P1-C13 or Un-P1-C18)
1xxx 2623 Replace the following, if present, one at a time, and in the order listed:
  1. System backplane (Un-P1)
  2. RAID battery (Un-P1-C13-E1 or Un-P1-C18-E1)
  3. RAID card (Un-P1-C12 or Un-P1-C13 or Un-P1-C18)
  4. Disk drive backplane (Un-P2)
1xxx 2625 Replace the following, if present, one at a time, and in the order listed:
  1. System backplane (Un-P1)
  2. RAID battery (Un-P1-C13-E1 or Un-P1-C18-E1)
  3. RAID card (Un-P1-C12 or Un-P1-C13 or Un-P1-C18)
  4. HEA adapter (Un-P1-C3)
  5. Disk drive backplane (Un-P2)
1xxx 2626 Replace the following, if present, one at a time, and in the order listed:
  1. System backplane (Un-P1)
  2. HEA adapter (Un-P1-C3)
1xxx 2691 Perform the following steps:
  1. Remove one of the memory cards that has not already been removed in this procedure and replace it with a new memory card.
  2. Power on the system. See Powering on and powering off the system for information on starting and stopping the system.
  3. Is reference code 1xxx 2691 logged again?
    Yes:
    Continue with the next step.
    No:
    The memory card that was replaced was the failing item. This ends the procedure.
  4. Have all of the memory cards been replaced?
    Yes:
    Replace the system backplane at location Un-P1. This ends the procedure.
    No:
    Reinstall the original memory card and repeat this procedure.
1xxx 8450 At least one processor VRM is missing. Inspect all of the processor cards and install the VRMs that are missing. See System FRU locations for FRU location information for the system that you are servicing.
1xxx 8453 There is an extra processor regulator in the system. Remove the extra regulator.
1xxx 8458 Low-power processor VRMs were installed on the system. The system requires high power processor VRMs. Replace the processor VRMs with the correct part number.
Table 3. For 8233-E8B or 8236-E8C, use the following table to determine the action to perform.
Reference code Action
1xxx 2622 Replace the following, if present, one at a time, and in the order listed:
  1. Base RAID card (Un-P1-C11)
  2. Auxiliary RAID card (Un-P1-C10)
  3. System backplane (Un-P1)
1xxx 2623 Replace the following, if present, one at a time, and in the order listed:
  1. Base RAID card (Un-P1-C11)
  2. Auxiliary RAID card (Un-P1-C10)
1xxx 2624 Replace the following, if present, one at a time, and in the order listed:
  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)
1xxx 2625 Replace the following, if present, one at a time, and in the order listed:
  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)
1xxx 2626 Replace the Ethernet card (Un-P1-C6), if present.
1xxx 2630 Replace the POWER7® VRM on processor card 1 (Un-P1-C13-C1). See System FRU locations for FRU location information for the system that you are servicing.
1xxx 2632 Replace the memory VRM on processor card 1 (Un-P1-C13-C10). See System FRU locations for FRU location information for the system that you are servicing.
1xxx 2634 Replace processor card 1 (Un-P1-C13). If the problem is not resolved, replace the system backplane (Un-P1).
1xxx 2640 Replace the POWER7 VRM on processor card 2 (Un-P2-C14-C1). See System FRU locations for FRU location information for the system that you are servicing.
1xxx 2642 Replace the memory VRM on processor card 2 (Un-P1-C14-C10). See System FRU locations for FRU location information for the system that you are servicing.
1xxx 2644 Replace processor card 2 (Un-P1-C14). If the problem is not resolved, replace the system backplane (Un-P1).
1xxx 2650 Replace the POWER7 VRM on processor card 3 (Un-P2-C15-C1). See System FRU locations for FRU location information for the system that you are servicing.
1xxx 2652 Replace the memory VRM on processor card 3 (Un-P1-C15-C10). See System FRU locations for FRU location information for the system that you are servicing.
1xxx 2654 Replace processor card 3 (Un-P1-C15). If the problem is not resolved, replace the system backplane (Un-P1).
1xxx 2660 Replace the POWER7 VRM on processor card 4 (Un-P2-C16-C1). See System FRU locations for FRU location information for the system that you are servicing.
1xxx 2662 Replace the memory VRM on processor card 4 (Un-P1-C16-C10). See System FRU locations for FRU location information for the system that you are servicing.
1xxx 2664 Replace processor card 4 (Un-P1-C16). If the problem is not resolved, replace the system backplane (Un-P1).
1xxx 3120 Replace the following, if present:
  1. The VRM specified by the location code.
  2. The processor card specified by the location code.
1xxx 8450 At least one VRM is missing from the processor card. Inspect all of the processor cards and install the VRMs that are missing. See System FRU locations for FRU location information for the system that you are servicing.
1xxx 8453 There is an extra processor regulator in the system. Remove the extra regulator.
Table 4. For 8248-L4T, 8408-E8D, or 9109-RMD, use the following table to determine the action to perform.
Reference code Action
1xxx 262C Replace the disk drive backplane at location Un-P2-C9.
1xxx 8450 There are fewer voltage regulator modules than system processor modules. Add another voltage regulator module in the next empty position.
1xxx 8453 There is an extra voltage regulator module in the system. Remove the extra voltage regulator module.
Table 5. For 8412-EAD, 9117-MMB, 9117-MMC, 9117-MMD, 9179-MHB, 9179-MHC, or 9179-MHD, use the following table to determine the action to perform.
Reference code Action
1xxx 2620 Replace the backplane (Un-P1)
1xxx 262C Replace the disk drive backplane (Un-P2-C9)
1xxx 2611, 2629, 262B, 262D, 262E, 262F Replace the following:
  • I/O backplane (Un-P2)
  • Processor card (Un-P3)
1xxx 2630, 2632, 2635, 2636, 2640, 2642, 2645 Replace the VRM specified by the location code.
1xxx 2634 Replace the I/O backplane (Un-P2).
1xxx 2700, 2701 Replace the VRM specified by the location code.
1xxx 2702, 2703 Replace the disk drive backplane (Un-P2-C9).
1xxx 2704, 2705 Replace the I/O backplane (Un-P2).
1xxx 3120 Replace the following, if present:
  • The VRM specified by the location code.
  • The processor card specified by the location code, if included in the failing item list.
  • The I/O backplane (Un-P2) if included in the failing item list.
1xxx 8450 There are fewer voltage regulator cards than processor cards. Add another regulator card in the next empty position.
1xxx 8451 There are too few voltage regulator cards installed. Add another regulator card in the next empty position.
1xxx 8453 There is an extra processor regulator in the system. Remove the extra regulator.
Parent topic: Power isolation procedures

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Last updated: Thu, July 23, 2015