IBM 88643RU - System x3850 - 8864 Service Manual page 155

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
Power supply current exceeded max spec value 1. Install another power supply (if possible) and make sure that ac
Power Supply X 12V Over Current Fault
Power Supply X 12V Over Voltage Fault
Power Supply X 12V Under Voltage Fault
Power Supply X AC Power Removed
Power Supply X Current Fault
Power Supply X DC Good Fault
Power Supply X Removed
Power Supply X Temperature Fault
QA Cache 1.8V Power Good Fault
Action
power cords are correctly connected.
2. Remove devices that consume an extraordinary amount of
power.
3. Replace the power backplane.
1. Power supply
2. Power backplane
1. Power supply
2. Power backplane
1. Power supply
2. Power backplane
1. Connect the ac power cord to power supply X.
2. Replace power supply X.
1. Power supply
2. Power backplane
1. If the system power present LED is lit, reduce the server to the
minimum configuration (see page 156) and replace
components one at a time to isolate the fault.
2. Reseat the following components:
a. Power supply
b. Power backplane
3. Replace the components listed in step 2 one at a time, in the
order shown, restarting the server each time.
1. Reseat power supply X.
2. Replace power supply X.
3. Replace the power backplane.
1. Make sure that the fan air intake areas are clear and well
ventilated.
2. Make sure that all fans are installed and functioning.
3. Reseat power supply X.
4. Replace power supply X.
1. Reseat the microprocessor tray.
2. (Trained service technician only) Reseat the microprocessors.
3. Reseat the microprocessor VRMs, if present.
4. (Trained service technician only) Replace the microprocessor
tray.
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Chapter 5. Diagnostics