Troubleshooting
Parallel Port Problems
Action
The number of parallel
ports displayed is less
than the number of
parallel ports installed.
Verify that:
1. Each port is assigned a unique address.
2. The parallel-port adapter, if you installed one, is seated properly.
If the problem still exists, have the system serviced.
Serial Port Problems
Action
The number of serial
ports displayed is less
than the number of serial
ports installed.
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 Netfinity Manager.
2. The serial-port adapter, if you installed one, is seated properly.
If the problem still exists, have the system serviced.
A serial device does not
work.
Verify that:
1. The device is designed for the server. See the “Getting Help
Information” section of this
Server Library for the .........
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 Netfinity Manager.
Universal Serial Bus
(USB) Port Problems
Action
The number of serial
buses displayed is less
than the number of serial
buses installed.
Verify that:
1. Each bus is assigned a unique address.
2. The serial-port adapter, if you installed one, is seated properly.
If the items above are correct, have the system serviced.
A USB device does not
work.
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, have the system serviced.
Chapter 6. Solving Problems
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