IBM System x3500 Service Manual page 168

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, System x3500 Type 7977," on page 41 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 X DC Good Fault
Power Supply X Removed
Power Supply X Temperature Fault
QA Cache 1.8V Power Good Fault
QA Vcc PLL Power Good Fault
QB Cache Power Good Fault
QB Vcc PLL Power Good Fault
Remote Login Successful. Login ID:
Resetting system due to an unrecoverable error
SCSI 1.8V Power Good Fault
Single fan failure
158
IBM System x3500 Type 7977: Problem Determination and Service Guide
Action
1. If the system power present LED is lit, reduce the server to the
minimum configuration (see "Solving undetermined problems"
on page 161) and replace components one at a time to isolate
the fault.
2. Reseat the following components:
a. Power supply
b. power-supply docking cable
3. Replace the following components:
a. Power supply
b. (Trained service technician only) System board
1. Reseat power supply X.
2. Replace power supply X.
3. (Trained service technician only) 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. (Trained service technician only) Reseat the microprocessors.
2. Reseat the microprocessor VRMs, if any are present.
3. (Trained service technician only) Replace the system board.
1. (Trained service technician only) Reseat the microprocessors.
2. Reseat the microprocessor VRMs, if any are present.
3. (Trained service technician only) Replace the system board.
1. (Trained service technician only) Reseat the microprocessors.
2. Reseat the microprocessor VRMs, if any are present.
3. (Trained service technician only) Replace the system board.
1. (Trained service technician only) Reseat the microprocessors.
2. Reseat the microprocessor VRMs, if any are present.
3. (Trained service technician only) Replace the system board.
Information only
Check the following light path diagnostics LEDs for faults:
1. Microprocessors
2. DIMMs
3. Memory card
4. System board
(Trained service technician only) Replace the system board.
Replace any missing or failed fans or power supplies.