Serial Port Problems; Software Problems; Universal Serial Bus (Usb) Port Problems; System-Board Error Leds - IBM IntelliStation A Pro 6224 User Manual

Serial port problems

Symptom
The number of serial ports
identified by the operating
system is less than the number
of serial ports that are installed.
A serial device does not work.

Software problems

Symptom
You suspect a software
problem.

Universal Serial Bus (USB) port problems

Symptom
A USB device does not work.

System-board error LEDs

The following illustration shows the error LEDs on the system board.
Each error LED is lit to indicate a problem with a specific component. After a
problem is corrected, the LED will not be lit the next time the computer is restarted.
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IntelliStation A Pro Type 6224: User's Guide
Suggested action
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 you installed one, is seated correctly.
If the problem remains, call for service.
1. Make sure that:
v The device is compatible with the computer.
v The serial port is enabled and is assigned a unique address.
v The device is connected to the correct connector.
2. Run serial port diagnostics.
3. Replace the failing serial device.
If the problem remains, call for service.
Suggested action
v To determine if problems are caused by the software, make sure that:
– The computer has the minimum memory needed to use the software. For
memory requirements, see the information that comes with the software.
– If you have just installed an adapter or memory, the computer does not have
a memory-address conflict.
– The software is designed to operate on the computer.
– Other software works on the computer.
– The software that you are using works on another computer.
v If you received any error messages when using the software program, see the
information that comes with the software for a description of the messages and
suggested solutions to the problem.
If y the problem remains, contact your place of purchase of the software.
Suggested action
Make sure that:
v You are not trying to use a USB device during POST if a standard (non-USB)
keyboard is connected to the keyboard connector. If a standard (non-USB)
keyboard is attached to the keyboard connector, the USB is disabled, and no
USB device will work during POST.
v The correct USB device driver is installed.
v The operating system supports USB devices.
If the problem remains, call for service.