Changing Serial Port Settings
If you add a serial adapter or use special hardware or software that causes a
configuration conflict, you might need to change the serial port settings. The serial
port can use any of the following settings:
The four available port addresses are (in hex): 3F8, 2F8, 3E8, 2E8.
The two recommended IRQ assignments are: IRQ 4 and IRQ 3. You can also use
IRQ 9, IRQ 10, IRQ 11, IRQ 14, and IRQ 15, but these settings might not work
with some operating systems and applications.
To change the serial port settings:
1. Start the Configuration/Setup Utility program (see “Starting the
Configuration/Setup Utility Program” on page 39).
2. Select Devices and I/O Ports from the Configuration/Setup Utility program
menu.
3. Select Serial Port Setup.
4. Use the arrow keys to select the settings for Serial Port A Address or Serial
Port A IRQ.
5. Press Esc to return to the Configuration/Setup Utility program menu.
6. Before you exit from the program, select Save Settings from the
Configuration/Setup Utility program menu.
7. To exit from the Configuration/Setup Utility program, press Esc and follow the
instructions on the screen.
Note: For more information on the serial ports, see Understanding Your Personal
Computer.
50 Using Your Personal Computer
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