IBM LS20 - BladeCenter - 8850 Service Manual page 39

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, Type 8850," on page 53 to determine which components are customer
replaceable units (CRU) and which components are field replaceable units (FRU).
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
01295085 ECC-checking hardware test error.
012980xx Patch code missing.
012981xx Processor patch (microcode) update failed.
01298200 Processor speed mismatch.
19990301 Hard disk sector error.
19990305 An operating system was not found.
Action
1. (Trained service technician only) Reseat the
microprocessor.
2. Replace the following components one at a time,
in the order shown, restarting the server each
time.
a. (Trained service technician only) System
board assembly
b. (Trained service technician only)
Microprocessor
1. Flash the BIOS code.
2. (Trained service technician only) Reseat
microprocessor x.
3. (Trained service technician only) Replace
microprocessor x.
1. Flash the BIOS code.
2. (Trained service technician only) Reseat
microprocessor x.
3. (Trained service technician only) Replace
microprocessor x.
Make sure that microprocessors 1 and 2 have the
same number of cores, cache size and type, clock
speed, internal and external clock frequencies (see
"Configuration/Setup Utility menu choices" on page
87).
1. Reseat the hard disk drive.
2. Replace the following components one at a time,
in the order shown, restarting the server each
time.
a. Hard disk drive
b. (Trained service technician only) System
board assembly
1. Make sure that a bootable operating system is
installed.
2. Run the Fixed Disk diagnostic test.
3. Reseat the hard disk drive.
4. Replace the following components one at a time,
in the order shown, restarting the server each
time.
a. Hard disk drive
b. (Trained service technician only) System
board assembly
25
Chapter 2. Diagnostics