IBM LS21 - BladeCenter - 7971, Service Manual

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v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See Chapter 3, “Parts listing, Types 7971 and 7972,” on page 59 to determine which components are CRUs
and which components are FRUs.
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Error code Description Action
162 Invalid configuration information or CMOS
RAM checksum failure.
1. Run the Configuration/Setup Utility program, select
Load Default Settings , and save the settings.
2. Reseat the battery.
3. Replace the following components one at a time,
in the order shown, restarting the blade server
each time:
a. Battery
b. (Trained service technician only) System board
assembly
163 Time of day not set.
1. Run the Configuration/Setup Utility program, select
Load Default Settings , make sure that the date
and time are correct, and save the settings.
2. Reseat the battery.
3. Replace the following components one at a time,
in the order shown, restarting the blade server
each time:
a. Battery
b. (Trained service technician only) System board
assembly
164 Memory size does not match CMOS.
1. Run the Configuration/Setup Utility program, make
sure that the memory configuration is correct, and
save the settings.
2. Reseat the DIMMs.
3. Replace the following components one at a time,
in the order shown, restarting the blade server
each time:
a. DIMMs
b. (Trained service technician only) System board
assembly
175 Bad EEPROM CRC #1 (Trained service technician only) Replace the system
board assembly.
177 Bad checksum (Trained service technician only) Replace the system
board assembly.
178 EEPROM not functional (Trained service technician only) Replace the system
board assembly.
184 Bad power-on password. (Trained service technician only) Replace the system
board assembly.
185 Corrupted boot sequence
1. Run the Configuration/Setup Utility program, select
Load Default Settings , and save the settings.
2. (Trained service technician only) Replace the
system board assembly.
186 Security hardware control logic error (Trained service technician only) Replace the system
board assembly.
Chapter 2. Diagnostics
17