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 Action
Power supply current exceeded max spec value
1. Install another power supply (if possible) and make sure that ac
power cords are correctly connected.
2. Remove devices that consume an extraordinary amount of
power.
3. Replace the power backplane.
Power Supply X 12V Over Current Fault
1. Power supply
2. Power backplane
Power Supply X 12V Over Voltage Fault
1. Power supply
2. Power backplane
Power Supply X 12V Under Voltage Fault
1. Power supply
2. Power backplane
Power Supply X AC Power Removed
1. Connect the ac power cord to power supply X.
2. Replace power supply X.
Power Supply X Current Fault
1. Power supply
2. Power backplane
Power Supply X DC Good Fault
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.
Power Supply X Removed
1. Reseat power supply X.
2. Replace power supply X.
3. Replace the power backplane.
Power Supply X Temperature Fault
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.
QA Cache 1.8V Power Good Fault
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.
Chapter 5. Diagnostics 139
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