IBM System x3950, Problem Determination And 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, Type 8878 and 8879,” on page 109 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 Action
00012000 Processor machine check error.
1. Reseat the following components:
a. (Trained service technician only)
Microprocessor
b. Microprocessor tray
2. Replace the following components one at a time,
in the order shown, restarting the server each
time.
a. (Trained service technician only)
Microprocessor
b. (Trained service technician only)
Microprocessor tray
00019501 Processor 1 is not functioning; check
processor LEDs.
1. Reseat the following components:
a. Microprocessor tray
b. (Trained service technician only)
Microprocessor 1
2. Replace the following components one at a time,
in the order shown, restarting the server each
time.
a. (Trained service technician only)
Microprocessor 1
b. (Trained service technician only)
Microprocessor tray
00019502 Processor 2 is not functioning; check
processor LEDs.
1. Reseat the following components:
a. Microprocessor tray
b. (Trained service technician only)
Microprocessor 2
2. Replace the following components one at a time,
in the order shown, restarting the server each
time.
a. (Trained service technician only)
Microprocessor 2
b. (Trained service technician only)
Microprocessor tray
Chapter 2. Diagnostics
27