IBM RS/6000 44P Series 270, Service Manual

Page: 155 / 346

Table 3. Firmware Error Codes. (continued)
Error Code Description Action / Possible Failing FRU
4B2xxxC4 System bus time-out error
(checkstop).
1. If this error occurs while the system
is running, replace the FRU as
indicated by the physical location
code displayed on the operator
panel.
2. If this error occurs while booting, go
to “Step 1540-24” on page 68.
Otherwise, go to the next step.
3. Check the service processor error
log for any possible additional
FRUs.
4B2xxxC5 System bus time-out error, waiting
for I/O (checkstop).
1. If a physical location code is
displayed in the operator panel or
by AIX diagnostics, replace the FRU
as indicated by the location code. If
a physical location code is not
available, continue.
2. In the service processor menus, go
to
″
Read Progress Indicators from
last System Boot
″
. If an arrow is
pointing to a location code replace
the FRU at that location code. If
there is no arrow pointing to a
location code, continue.
3. Go to “MAP 1540: Minimum
Configuration” on page 50.
4B2xxxC6 System bus parity error
(checkstop).
1. If a physical location code is
displayed in the operator panel or
by AIX diagnostics, replace the FRU
as indicated by the location code. If
a physical location code is not
available, continue.
2. In the service processor menus, go
to
″
Read Progress Indicators from
last System Boot
″
. If an arrow is
pointing to a location code replace
the FRU at that location code. If
there is no arrow pointing to a
location code, continue.
3. Go to “MAP 1540: Minimum
Configuration” on page 50.
Chapter 5. Error Code to FRU Index
137