44 Hayes Modem Installation Guide
Resolving COM Port or Interrupt Conflicts:
COM port or IRQ conflicts can be resolved by selecting a unique
COM port setting for the modem. If you are a Windows 95 or 98
user, please refer to “Changing Resources
in Windows 95/98” on page 10. If you are a Windows 3.x user, there
are several steps you can follow to prevent COM port conflicts:
1. Identify Serial Ports already being used by your computer. Most
computers using Windows will have a utility to diagnose COM
ports.
Turn your computer off. Remove your modem, and reboot your
system. Exit Windows 3.1, or 3.11.
Type MSD E at the C: prompt. The COM Ports field identifies
how many COM ports your computer has. Type C to identify your
port address. Refer to the following table to identify COM ports.
COM Port Interrupt Base I/0
COM1 IRQ4 03F8
COM2 IRQ3 02F8
COM3 IRQ4 03E8
COM4 IRQ3 02E8
2. If you are using Windows, COM port settings can be found in
the Control Panel. Any changes you make in the Control Panel
must match the jumper settings of the modem and apply to all
Windows communications programs.
For Plug-n-Play modems with Windows 3.1 or 3.11, use
SETCOMM.EXE, or SETCOM16.EXE to set the COM Port.
Once you have selected a configuration in the Control Panel, you
may select the COM port in the communications software without
having to change the IRQ setting because the Control Panel will
change both automatically.
To Next Page
Loading...