IBM Netfinity 3000, User Handbook Manual

Page: 248 / 370

Troubleshooting
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 41 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 ISA and PCI adapters” on page 82.
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 39.
2. The USB clock speed matches the clock speed of
the USB device.
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.
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Netfinity 3000 User's Handbook