PCI I/O card group in the third PCI bridge set (highest adapter card range), IOAs and/or IOPs.

The multi-adapter bridge hardware is having a problem with one or more PCI cards or adapters in the third PCI bridge set in the enclosure, but the exact card or adapter cannot be identified. The problem can be with a card, a card slot, or an embedded adapter. The PCI bridge set is indicated by the Direct Select Address (DSA) in word 7 of the reference code.

1. Are you working from a serviceable event user interface of an operating system, service processor, or the HMC, and there is a card position or list of card positions given for this FRU?
   • Yes: Then the position(s) given is the location of the failing component(s). When there is a list of locations in this FRU's location code, the card locations will be separated by commas. A range of card positions will show the starting card position, a colon, and the ending card position. Go to step 5.
   • No: Perform the following:
     1. Determine the location of the cards in the group using the DSA. Record the DSA, which is word 7 of the reference code, from the user interface you are using.
     2. Locate the cards specified in the DSA by performing isolation procedure MABIP53 or by going to the service guide for system unit and performing isolation procedure MABIP53. Return here and continue with the next step after locating the card(s).

2. Were you able to identify a single card position by performing MABIP53?
   • Yes: This is the location of the failing item. Go to step 5.
   • No: Continue with the next step.

3. Perform the following, referring to the remove and replace procedures for each FRU location you determined:
   1. Remove all of the adapter and/or IOP cards in the locations that are identified in the given range of card slots. Do not remove any FRUs with embedded adapters, only FRUs in PCI card slots.

   2. Replace each card one at a time.
      Note: For i5/OS^® adapters controlled by IOPs, replace the IOP before any of the adapters.

      Power on the unit after you replace each card until either the problem reappears or you have replaced each card.

   3. Did the problem reappear?
      • Yes: The last card that you replaced before the problem appeared again is the failing item. This ends the procedure.
      • No: Continue with the next step.

4. Did you identify a FRU with embedded adapters when performing MABIP53?
   • Yes: The problem is in the FRU with the embedded adapter. Continue with the next step and exchange that FRU.
   • No: The problem may be intermittent. Contact your next level of support. This ends the procedure.

5. For each unit, starting with the primary unit and then the secondary units, use the links in the following table below to locate and replace the failing item(s).

   CCIN or FFC	Type and model	Part number	Description	Location code
   	9406-MMA, 9117-MMA	42R7352	I/O backplane, PCI bridge set 3	Un-P1, Un-P1-C3, Un-P1-C4, Un-P1-C5, Un-P1-C6
   	5094	39J3058	I/O backplane, PCI bridge set 3	Un-CB1-C11, Un-CB1-C12, Un-CB1-C13, Un-CB1-C14, Un-CB1-C15

This ends the procedure.