IBM pSeries 630 6C4 Service Manual page 209

Checkpoint
E566
E567
E568
Description
Enable device arbitration on the RIO
interface chip
Set up RIO interface chip registers
Set up the external interrupt vector register
Action/
Possible Failing FRU
If the location code associated with this
checkpoint is either U0.1-P1 or U0.1-P2, do
the following:
1. Replace the PCI riser card in the CEC
drawer, location: U0.1-P2.
2. Replace the CEC backplane: location
U0.1-P1.
Otherwise, replace the device specified by
the location code.
If the device specified by the location code
is the RIO riser card in an I/O subsystem
(location: U0.dd-P1.1), and replacing it
does not resolve the problem, replace the
I/O backplane (location: U0.dd-P1) in the
same I/O subsystem.
If the location code associated with this
checkpoint is either U0.1-P1 or U0.1-P2, do
the following:
1. Replace the PCI riser card in the CEC
drawer, location: U0.1-P2.
2. Replace the CEC backplane: location
U0.1-P1.
Otherwise, replace the device specified by
the location code.
If the device specified by the location code
is the RIO riser card in an I/O subsystem
(location: U0.dd-P1.1), and replacing it
does not resolve the problem, replace the
I/O backplane (location: U0.dd-P1) in the
same I/O subsystem.
If the location code associated with this
checkpoint is either U0.1-P1 or U0.1-P2, do
the following:
1. Replace the PCI riser card in the CEC
drawer, location: U0.1-P2.
2. Replace the CEC backplane: location
U0.1-P1.
Otherwise, replace the device specified by
the location code.
If the device specified by the location code
is the RIO riser card in an I/O subsystem
(location: U0.dd-P1.1), and replacing it
does not resolve the problem, replace the
I/O backplane (location: U0.dd-P1) in the
same I/O subsystem.
Chapter 4. Checkpoints
189