Solving Power Problems; Solving Ethernet Controller Problems - IBM x3250 M2 Problem Determination And Service Manual

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, Types 4190, 4191 and 4194 server," on page 31 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
System shut off due to system board under
temperature.
System x started a RS485 connection with us
We started a RS485 connection with remote
system x
We will retry sending alert ID x; when accepted
by a remote system, it will have a different ID
Windows blue screen has been captured

Solving power problems

Power problems can be difficult to solve. For example, a short circuit can exist
anywhere on any of the power distribution buses. Usually, a short circuit will cause
the power subsystem to shut down because of an overcurrent condition. To
diagnose a power problem, use the following general procedure:
1. Turn off the server and disconnect all ac power cords.
2. Check for loose cables in the power subsystem. Also check for short circuits, for
3. Remove the adapters and disconnect the cables and power cords to all internal
4. Reconnect all ac power cords and turn on the server. If the server starts
If the server does not start from the minimum configuration, replace the components
in the minimum configuration one at a time until the problem is isolated.

Solving Ethernet controller problems

The method that you use to test the Ethernet controller depends on which operating
system you are using. See the operating-system documentation for information
about Ethernet controllers, and see the Ethernet controller device-driver readme file.
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IBM System x3250 M2 Types 4190, 4191 and 4194: Problem Determination and Service Guide
Action
1. Make sure that the fans have good airflow and are not
obstructed.
2. (Trained service technician only) Replace the system board.
Information only.
Information only.
Information only.
Information only.
example, if a loose screw is causing a short circuit on a circuit board.
and external devices until the server is at the minimum configuration that is
required for the server to start (see "Solving undetermined problems" on page
199 for the minimum configuration).
successfully, replace the adapters and devices one at a time until the problem is
isolated.