IBM i 830 Repair Manual page 271

Reference Description/Action Perform all actions before exchanging
Code Failing Items
6962 to 6963 Multi-adapter bridge card slot error, do not use card slot
Power control failure, do not use slot.
The card location is not available for use. The Failing Item with
the card slot error is in the Failing Item list for this reference
code.
See the SLOTERR symbolic FRU for the list of messages and a
further description of the problem detected by Licensed
Internal Code.
For this reference code the failing item list presented in the
"Service Action Log" can be different from the failing item list
documented here. That is due to the differences in system
models and features installed.
If the "Service Action Log" is available then use the failing item
list presented there for servicing this reference code.
If the "Service Action Log" is not available then use the failing
item list documented here. By following the procedures in the
symbolic FRUs listed here you will isolate to the correct FRU
list based on system model and features installed.
6964 Multi-adapter bridge configuration change or error
Multi-adapter bridge has no IOP for the I/O adapters.
LIC detected I/O adapters under the multi-adapter bridge but
did not detect an I/O processor. The I/O adapters are not
available.
See the MABRCFG symbolic FRU for the list of messages, a
further description of the problem detected by Licensed
Internal Code and the corrective action.
6965 Multi-adapter bridge configuration change or error
Card type not supported in this slot.
An I/O processor or I/O adapter card type is installed in the
location indicated in word 7 of the SRC. The card type is not
supported in that slot under the Multi-adapter bridge. The card
is unavailable.
See the MABRCFG symbolic FRU for the list of messages, a
further description of the problem detected by Licensed
Internal Code and the corrective action.
6966 Multi-adapter bridge configuration change or error
I/O processor removed from multi-adapter bridge card slot.
On the previous IPL an I/O processor was in the card location
specified in word 7 of the SRC. The I/O processor was not
detected on this IPL.
See the MABRCFG symbolic FRU for the list of messages, a
further description of the problem detected by Licensed
Internal Code and the corrective action.
B6xx (including A6xx)
Failing Item Location
SLOTERR
MASBUS
MABRCFG
MABRCFG
MABRCFG
Chapter 2. Unit Reference Codes
257