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Table 2. Troubleshooting charts (continued)
Device
Serial port
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
Suspected software problem.
Universal Serial Bus (USB)
ports
A USB device does not work.
Light Path Diagnostics feature overview
If the System Error light on the operator information panel on the front of the server is
on, one or more LEDs inside the server might be on. Use the Light Path Diagnostics
panel to identify the type of error that occurred.
For LED locations, see the illustration on page 53.
You can use the Light Path Diagnostics feature in your server to quickly identify the
type of system error that occurred. The Light Path Diagnostics panel is located on the
system board, just behind PCI adapter slot 1. When you press the Light Path Diag-
nostics button, the LED on the top-right corner of the panel will illuminate. This shows
that the diagnostic circuitry is working correctly.
52
Installation Guide
Verify that:
1.
Each port is assigned a unique address by the Configuration/Setup Utility
program and none of the serial ports are disabled.
2.
The serial-port adapter, if you installed one, is seated properly.
If the problem remains, 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.
If the problem remains, call for service.
To determine if problems are caused by the software, verify that:
1.
Your system 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 system.
3.
Other software works on your system.
4.
The software that you are trying to use 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 the USB device might not work during POST.
2.
The correct USB device driver is installed.
3.
Your operating system supports USB devices.
If the problem remains, call for service.
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