IBM 88643RU - System x3850 - 8864 Service Manual page 149

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 8864," on page 23 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.
System-error log message
12V D Bus Fault
12V E Bus Fault
12V Planar Fault
12V Power Good Fault
Application Posted Alert to ASM
Backplane Power Good Fault
Board 2.5V Power Good Fault
Calgary Core 1.5V Power Good Fault
CEC Card Power Good Fault
Action
1. Reseat the following components:
a. Microprocessor tray
b. Memory cards 3 and 4
2. Replace the following components one at a time, in the order
shown, restarting the server each time.
a. Memory cards 3 and 4
b. (Trained service technician only) Power backplane
c. (Trained service technician only) Microprocessor tray
1. Reseat the following components:
a. Microprocessor tray
b. Memory cards 1 and 2
2. Replace the following components one at a time, in the order
shown, restarting the server each time.
a. Memory cards 1 and 2
b. (Trained service technician only) Power backplane
c. (Trained service technician only) Microprocessor tray
1. Reseat the microprocessor tray.
2. Replace the power backplane.
1. Reseat the microprocessor tray.
2. Reseat the memory cards.
3. (Trained service technician only) Replace the power backplane.
4. (Trained service technician only) Replace the microprocessor
tray.
Information only
1. Reseat the microprocessor tray.
2. Reseat the memory cards.
3. (Trained service technician only) Replace the power backplane.
4. (Trained service technician only) Replace the microprocessor
tray.
1. Reseat the I/O board.
2. Replace the I/O board.
1. Reseat the I/O board.
2. Reseat the microprocessor tray.
3. (Trained service technician only) Replace the PCI board.
1. Reseat the microprocessor tray.
2. Reseat the I/O board.
3. (Trained service technician only) Replace the PCI board.
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Chapter 5. Diagnostics