Bus Pip Mab-04 - IBM i 830 Repair Manual

Resource" on page 309. If BUS PIP IOP-02 does not identify a failing I/O
Adapter then return here and continue with the next step in this procedure.
28. Exchange the I/O Processor that you identified in step 27 on page 316 of this
procedure.
Power on the frame or tower.
Does the same SRC that sent you to this procedure occur?
No Yes
↓
The failing item is the FRU containing the multi-adapter bridge which
controls this IOP. Go to step 31 of this procedure.
29. The failing item was the IOP that you just exchanged. Reinstall all of the other
IOPs and I/O adapters that you removed during this procedure. Go to "BUS
PIP VERIFY - RA" on page 323.
30. No failing IOPs. The failing item is the FRU containing the multi-adapter
bridge which controls this IOP.
31. Power off the system unit or I/O tower that you are working in.
Exchange the FRU containing the multi-adapter bridge using the symbolic
FRU "MA_BRDG" on page 554.
Power on the system unit or I/O tower that you are working in.
Does the same SRC that sent you to this procedure occur?
No Yes
↓
Contact your next level of support.
This ends the procedure.
32. The failing item was the multi-adapter bridge FRU that you just exchanged.
Reinstall all of the other IOPs and I/O adapters that you removed during this
procedure. Go to "BUS PIP VERIFY - RA" on page 323.
This ends the procedure.

BUS PIP MAB-04

Introduction: This procedure isolates a failing PCI I/O processor card from an
SRC when the system or logical partition will not IPL.
1. The removal and installation of all FRUs in this procedure must be
performed using "Dedicated Maintenance".
2. Determine the "PCI Bridge Set" (multi-adapter bridge domain) by performing
the following:
a. Record the bus number (BBBB), the multi-adapter bridge number (C) and
the multi-adapter bridge function number (c) from the Direct Select
Address (DSA) in word 7 of the SRC in the SAL entry. See "Breaking
Down The SRC" on page 280 for help in determining these values.
b. Use the bus number that you recorded and the "System Configuration
Listing" or ask the customer to determine what frame the bus is in.
c. Record the frame type where the bus is located.
d. The "PCI Bridge Set" is the group of card positions controlled by the same
multi-adapter bridge on the bus that you recorded. Use the "System
Configuration Listing", the card position table for the frame type that you
recorded, the bus number, and the multi-adapter bridge number to
determine the "PCI Bridge Set" where the failure occurred. Refer to the
"Card Position Tables" on page 282 to locate the card position table for the
frame type that you recorded.
Chapter 3. Problem Isolation Procedures (PIPs), Failing Items, and Symbolic FRU Isolation
Bus, High-Speed Link (HSL) PIPs
317