IBM Netfinity 3500, Руководство пользователя

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Troubleshooting
Serial Port Problems Action
The serial port cannot be
accessed, or 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. To verify
the address, run the Configuration/Setup Utility
program, and select Devices and I/O Ports. See
“Devices and I/O Ports” on page 30 for additional
information.
2. The serial-port adapter, if you installed one, is
properly installed and firmly seated. For
information on installing adapters, see “Installing
or Removing Adapters” on page 61.
If the items above are correct, have the system serviced.
A serial device does not
work. Verify that the serial port is enabled and is assigned a
unique address.
If the items above are correct, have the system serviced.
Universal Serial Bus
(USB) Port Problems
Action
The USB ports cannot be
accessed, or 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. Each port is assigned a unique address. To verify
the address, run the Configuration/Setup Utility
program, and select Devices and I/O Ports. See
“Devices and I/O Ports” on page 30 for additional
information.
3. The USB device is properly installed and firmly
seated.
4. The serial-port adapter, if you installed one, is
properly installed and firmly seated. For
information on installing adapters, see “Installing
or Removing Adapters” on page 61.
If the items above are correct, have the system serviced.
A USB device does not
work. Verify that:
1. The USB is enabled and is assigned a unique
address. For information on using the
Configuration/Setup Utility program, see “Using
the Configuration/Setup Utility Program” on
page 28.
2. The USB clock speed matches the clock speed of
the USB device.
If the items above are correct, have the system serviced.
Chapter 5. Solving Problems
169