IBM RS/6000 44P 270 Service Manual page 153

Table 3. Firmware Error Codes. (continued)
Error Code Description
4B2xxx11 Machine Check - 1 (Stuck Active)
4B2xxx41 ABIST fail
4B2xxx42 ABIST fail
4B2xxx51 LBIST fail
4B2xxx52 LBIST failed
4B2xxxC0 CPU internal error (checkstop).
Action / Possible Failing FRU
1. Remove processor card in slot 2
(J8) (if installed) and see if the
problem is resolved. If problem is
resolved, replace processor card. If
not, continue.
2. Exchange processor card in slot 1
(J6) with processor card removed
from slot 2 (J8) in step 1 (replace
processor card if only one processor
card exists) and see if the problem
is resolved. If problem is resolved,
replace processor card. If not,
continue.
3. Replace system board.
ABIST fail on first processor in slot
identified by location code displayed on
operator panel.
ABIST fail on second processor in slot
identified by location code displayed on
operator panel.
LBIST fail on first processor in slot
identified by location code displayed on
operator panel.
LBIST failed on second processor in
slot identified by location code
displayed on operator panel.
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
135