Table 9. Common Firmware Error Codes (continued)
Error Code Description Action/
Possible Failing FRU
B1xx 4681 JTAG scan interface problem 1. JTAG cabling
2. Clock card
Location: U1.1-P1.1.1
3. Processor cards and CEC backplane
Locations: U1.1-P1-C1
U1.1-P1-C2
U1.1-P1
4. Primary I/O drawer backplane
Location: U0.1-P1
B1xx 4690 Operating system surveillance time out (AIX
to service processor interface failure)
1. This error code indicates that the
operating system terminated early (which
usually implies an operating system
crash). This error code may appear in the
service processor error log by itself.
However, in the AIX error log, there
should be another error which points to
the cause of the operating system crash.
Use the other error as the starting point
for your service action.
2. The other possibility is that the operating
system was not found during a prior boot
attempt. To determine if this occurred, do
the following: Look at the AIX error log
entry containing B1xx4690. This will be a
″SCAN_ERROR_CHRP″ error with an
identifier of BFEC0425. In the detail data,
find the string ″B1xx4690″ (If present, it
will be at byte 60 of the detail data.) Then
go forward 8 bytes after the ″B1″ to byte
68 and look at bytes 68 and 69. If the
values of bytes 68 and 69 are A2B0, this
indicates that the firmware was unable to
find a bootable device in the boot list that
is set in the SMS menus. If the system is
up, the boot list problem has been
corrected and the B1xx 4690 can be
treated as an informational message with
no actions required.
3. Call service support.
Chapter 5. Error Code to FRU Index 343
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