IBM 847651U Handbook - Page 247

Troubleshooting Parallel port problems The parallel port cannot be accessed, or the number of parallel ports displayed is less than the number of parallel ports installed. Action 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 41 for additional information. 2. The parallel-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. Serial port problems The serial port cannot be accessed, or the number of serial ports displayed is less than the number of serial ports installed. A serial device does not work. Action 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 41 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 ISA and PCI adapters" on page 82. If the items above are correct, have the system serviced. Verify that the serial port is enabled and is assigned a unique address. If the items above are correct, have the system serviced. Chapter 5. Solving problems 213