IBM 8500R - Netfinity - 8681, Hardware Maintenance Manual

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Power Fault Message in
the System Error Log Failing FRU/Action
5V bus A
(Power to PCI, I/O, NIO and
CPU complex) 1. Remove AC power.
2. Reduce the system to
one processor
daughter board with
one processor.
3. Remove the cache
coherency filter
DIMMs.
4. Remove all PCI
adapters except the
I\O function card and
the system
management adapter.
5. Reconnect the AC
power and wait about
30 seconds for the
system management
adapter to initialize.
6. Attempt to start the
system. If the system
starts, one of the FRUs
removed is the failing
FRU. Reinstall the
FRUs one at a time to
identify the failing FRU.
7. If the system does not
start, suspect
remaining system
FRUs in the following
order:
a. Hotswap sense
card
b. I/O function card
c. System
management
adapter
d. I/O board
e. Processor
f. Processor
daughter board
g. Processor board
h. Power control
card
i. Midplane
j. Power supply
Netfinity 8500R - Type 8681
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