IBM LS21 - BladeCenter - 7971, Service Manual

Page: 32 / 130

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
101 Timer tick interrupt failure (Trained service technician only) Replace the system
board assembly.
102 Timer 2 test failure (Trained service technician only) Replace the system
board assembly.
106 Diskette controller failure (Trained service technician only) Replace the system
board assembly.
129 Internal cache (L1) error
1. Reseat the following components:
a. (Trained service technician only)
Microprocessor 1
b. (Trained service technician only)
Microprocessor 2
2. Replace the following components one at a time,
in the order shown, restarting the blade server
each time:
a. (Trained service technician only)
Microprocessor 1
b. (Trained service technician only)
Microprocessor 2
c. (Trained service technician only) System board
assembly
151 Real-time clock failure
1. Reseat the battery.
2. 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
161 Real-time clock battery failure
1. Run the Configuration/Setup Utility program.
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
16
BladeCenter LS21 Type 7971 and LS41 Type 7972: Problem Determination and Service Guide