IBM E Server x 100 Series, Installation Manual

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Power problems
v Follow the suggested actions in the order in which they are listed in the Action column until the problem
is solved.
v
See the parts listing in Problem Determination and Service Guide 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.
Symptom Action
The power-control button does
not work, and the reset button,
if supported, does work.
1. Reseat the following components:
a. Control panel assembly
b. (Trained service technician only) System board
2. Replace the following components one at a time, in the order shown, restarting
the computer each time:
a. (Trained service technician only) Control panel assembly
b. (Trained service technician only) System board
The computer does not start.
1. Make sure that:
v The power cords are correctly connected to the computer and to a working
electrical outlet.
v
The type of memory that is installed is correct.
2. If you just installed an optional device, remove it, and restart the computer. If
the computer now starts, you might have installed more devices than the power
supply supports.
3. Override the front panel power control button:
a. Disconnect the computer power cords.
b. Reconnect the power cords.
If the computer does not start, (trained service technician only) replace the
system board.
4. See “Solving undetermined problems” in the Problem Determination and
Service Guide .
The computer does not turn off.
1. Determine whether you are using an Advanced Configuration and Power
Interface (ACPI) or a non-ACPI operating system. If you are using a non-ACPI
operating system, complete the following steps:
a. Press Ctrl+Alt+Delete.
b. Turn off the computer by pressing the power-control button for 4 seconds.
c. If computer fails POST and the power-control button does not work,
disconnect the AC power cord.
2. If the problem remains or if you are using an ACPI-aware operating system, the
problem could be with the system board.
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xSeries 100 Type 8486: Installation Guide