32
3. Verify that IRQs 3 and 4 are assigned only to the serial ports, and that IRQ 7 is not
assigned to any device.
NOTE
If IRQ7 is not assigned to a device, it will not be displayed in the list.
4. Click I/O Port to display the port device addresses.
5. Verify that no other device except the serial ports are using addresses 2F8H and 3F8H,
and verify that address 3E8H is not assigned to any device.
6. Click
OK.
NOTE
If these IRQs and I/O addresses are assigned to other devices, select an available IRQ or I/O
address for the COM ports.
To change the IRQ and I/O addresses of the onboard serial ports:
1. From the Start menu, click Shut Down.
2. Click Restart the Computer, then click OK.
3. When the system memory check is running, press DEL to run the BIOS Setup program.
4. In the Setup menu, click Peripheral.
