5
(Note: If you are using the default Play-N-Play jumper settings and not manu-
ally configuring the COM Port and IRQ jumpers, the following step may be
skipped. Refer back to this area only if Plug-N-Play cannot successfully con-
figure your modem.)
The modem will need one IRQ (interrupt) and one COM Port to function. To
check for any available interrupts in your system, go to Start-Settings-Con-
trol Panel. Double-click the System icon and select the Device Manager
tab. Click the Properties button to view the System Resources. There are 16
(0-15) interrupts available in a system. Make a note of any interrupt not listed.
If you do not have any free interrupts you may need to disable an existing
device that you are not currently using, such as COM2 on your motherboard.
This will free up I/O port 0x2F8 and IRQ 3.
To disable COM2, boot your system and enter your BIOS setup. You can
normally invoke the BIOS setup menu by pressing a key or a combination of
keys at the first boot up screen. Some of the common keys are Del, F1, F2,
Ctrl+Alt+S, Ctrl+Alt+Esc. If none of the mentioned key combinations work,
please refer to your computer system manual for instructions on how to in-
voke the BIOS setup. (note: if your system uses a serate I/O Card, use the
cards jumpers to disable a COM Port.)
Once inside the BIOS setup, find the menu for integrated peripherals, locate
the COM port settings, then disable COM2 or Comport B. If unsure, please
consult your computer users manual. Be sure to Save the settings before
exiting the BIOS Setup. The computer will then reboot. Set your modems
jumpers to COM 2 - IRQ 3 (See Jumper Settings in the Installing the Mo-
dem section for jumper setting diagrams.).
You will also need to disable the COM Port from the device manager. Go to
Start-Settings-Control Panel double-click on the System icon, select the
Device Manager tab. Double-click the Ports (COM & LPT) icon to expand
the Ports tree and highlight Communication Port (COM2). Now click on
the Properties button. Put a Check mark in Disable in this hardware profile
(Windows 95 OEM SR2 only) or uncheck Original Configuration (cur-
rent) (for Windows 95 or Windows 95a). Exit Windows 95 and restart your
system. (Note: If COM 3 and or COM 4 are present and you have nothing
installed on these ports, delete them first before deleting COM 2).
(Note: If you are not familiar with changing the settings within your system
BIOS setup, you should skip the following system preinstallation procedure
and go to the Installing the Modem section. Refer back to this area only if
you have a problem installing the modem.)
