IBM 7985 Problem Determination And Service Manual page 91

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 4, "Parts listing, System x3655, Type 7985 and 7943," on page 93 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 event/error log message
Power supply n fault
n = the power supply number
Power supply n AC power removed
n = the power supply number
Power supply n fan fault
n = the power supply number
Power supply current exceeded max spec value 1. Make sure that two power supplies are installed, and that the
Primary HT2100 initiated sync flood: PCI-e slot
n error
Primary HT2100 initiated sync flood: SAS error
POST reporting memory event DIMM Disabled -
multi-bit or multi-symbol error Chassis Number 1
Memory Card n Memory DIMM n
Processor initiated sync flood: Processor n
failed
Slot n error (possible timeout condition)
Action
1. If the server power-on LED is lit, perform the following steps:
a. Reduce the server to the minimum configuration (see
"Solving undetermined problems" on page 89 for a
description of the minimum configuration).
b. Reinstall the components you removed, one at a time,
restarting the server each time.
c. If the error recurs, the component you just reinstalled is
defective; replace the defective component.
2. Reseat the following components:
a. Power supply n
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. Make sure that the power cords are correctly connected to the
server and to a working electrical outlet.
2. Replace power supply n.
3. Replace the power backplane.
1. Make sure that there are no obstructions, such as bundled
cables, to the airflow on the power-supply fan.
2. Replace power supply n.
AC power cords are correctly connected to the power supplies
and to a working electrical outlet.
2. Replace the power backplane.
1. Reseat the failing adapter.
2. Replace the failing adapter.
3. (Trained service technician only) Replace the system board.
(Trained service technician only) Replace the system board.
1. Reseat the failing DIMM.
2. (Trained service technician only) Reseat the microprocessor.
3. (Trained service technician only) Replace the microprocessor.
1. (Trained service technician only) Reseat the microprocessor.
2. (Trained service technician only) Replace the microprocessor.
1. Reseat the failing adapter.
2. Replace the failing adapter.
3. (Trained service technician only) Replace the system board.
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Chapter 3. Diagnostics