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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.
The server does not turn off.
The server unexpectedly shuts
down, and the LEDs on the
operator information panel are
not lit.
Serial port problems
The number of serial ports that
are identified by the operating
system is less than the number
of installed serial ports.
A serial device does not work.
ServerGuide problems
The ServerGuide Setup and
Installation CD will not start.
1. Determine whether you are using an Advanced Configuration and Power
Management (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 server by holding the power-control button for 5 seconds.
c. Restart the server.
d. If the server fails POST and the power-control button does not work,
disconnect the ac power cord for 20 seconds; then, reconnect the ac power
cord and restart the server.
2. If the problem remains or if you are using an ACPI-aware operating system,
suspect the I/O board.
See the Problem Determination and Service Guide on the IBM xSeries
Documentation CD for more information.
Action
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 adapter (if one is present) is seated correctly.
2. Reseat the serial port adapter.
3. Replace the serial port adapter.
For more information about the serial port, see the User's Guide on the IBM
xSeries Documentation CD.
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 port.
2. Reseat the following components:
a. Failing serial device
b. Serial cable
c. Remote Supervisor Adapter II SlimLine (if one is present)
d. I/O board
3. Replace the components listed in step 2 one at a time, in the order shown,
restarting the server each time.
For more information about the serial port, see the User's Guide on the IBM
xSeries Documentation CD.
Action
v Make sure that the server supports the ServerGuide program and has a
startable (bootable) CD (or DVD) drive.
v If the startup (boot) sequence settings have been altered, make sure that the CD
drive is first in the startup sequence.
v If more than one CD drive is installed, make sure that only one drive is set as
the primary drive. Start the CD from the primary drive.
Chapter 5. Solving problems
49
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