IBM eServer 342 xSeries Installation Manual page 51

Device
Serial port problems
The number of serial ports
identified by the operating
system is less than the
number of serial ports
installed.
A serial device does not
work.
Software problem
Suspected software
problem.
Universal Serial Bus
(USB) port problems
A USB device does not
work.
Table 4. Troubleshooting charts.
Verify that:
1. Each port is assigned a unique address by the Configuration/Setup Utility program
and none of the serial ports are disabled.
Note: The management C connector is the same as a serial port connector, but it
is used only by the Integrated System Management Processor, and is not
available for use by the operating system. This port does not appear in the
Configuration/Setup Utility program menus; it can be configured using
xSeries Manager.
2. The serial-port adapter, if you installed one, is seated properly.
If the problem still exists, call for service.
Verify that:
1. The device is compatible with the server.
2. The serial port is enabled and is assigned a unique address.
3. Make sure that the device is not connected to the management port C.
Note: The management C connector is the same as a serial port connector, but it
is used only by the Integrated System Management Processor, and is not
available for use by the operating system. This port does not appear in the
Configuration/Setup Utility program menus; it can be configured using
xSeries Manager.
If the problem still exists, call for service.
To determine if problems are caused by the software, verify that:
1. Your server has the minimum memory requirements needed to use the software.
For memory requirements, refer to the information that comes with the software.
Note: If you have just installed an adapter or memory, you might have a memory
address conflict.
2. The software is designed to operate on your server.
3. Other software works on your server.
4. The software that you are using works on another system.
If you received any error messages when using the software program, refer to the
information that comes with the software for a description of the messages and solutions
to the problem.
If the items above are correct and the problem remains, contact your place of purchase.
Verify that:
1. You are not trying to use a USB device during POST if you have a standard (non-
USB) keyboard attached to the keyboard port.
Note: If a standard (non-USB) keyboard is attached to the keyboard port, then the
USB is disabled and no USB device will work during POST.
2. The correct USB device driver is installed.
3. Your operating system supports USB devices.
If the problem still exists, call for service.
Suggested action
Chapter 5. Solving Problems
39