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 the 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 server unexpectedly shuts
down, and the LEDs on the
front-panel assembly are not lit.
See “Solving undetermined problems” in the Problem Determination and Service
Guide on the IBM System x Documentation CD.
Serial port problems
For more information about the serial port, see the Problem Determination and
Service Guide on the IBM System x Documentation CD.
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 the 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 number of serial ports that
are identified by the operating
system is less than the number
of installed serial ports.
1. Make sure that:
v Each port is assigned a unique address in the Configuration/Setup Utility
program and none of the serial ports is disabled.
v The serial-port (COM 2) cable connector is seated correctly.
2.
Reseat the serial-port (COM 2) connector.
3. Replace the serial-port (COM 2).
4. (Trained service technician only) System board
A serial device does not work.
1. Make sure that:
v The device is compatible with the server.
v The serial port is enabled and is assigned a unique address.
v The device is connected to the correct connector. (For connector locations,
see the User’s Guide on the IBM System x Documentation CD.)
2.
Reseat the following components:
a. Failing serial device
b. Serial cable
c. Remote Supervisor Adapter II SlimLine (if one is present)
3.
Replace the following components one at a time, in the order shown, restarting
the server each time:
a. Failing serial device
b. Serial cable
c. Remote Supervisor Adapter II SlimLine (if one is present)
d. (Trained service technician only) System board
70 System x3200 Type 4362 and 4363: Installation Guide
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