8-2 IBM Personal Computer User Guide
Resolving conflicts with installed adapter cards
If you purchased a computer with an installed modem c ard, this section can help
you resolve some potential conflicts between your new hardware and the modem
card.
If after installing a new hardware option, the modem or new hardware option does
not work, use the Windows 98 Device Manager to compare the resources used by
the installed modem card and the new hardware option. If both devices attempt to
use the same resource, refer to the new hardware's documentation to change the
resource used by the new hardware.
If the resource for the new hardware cannot be changed, change the resource for
the modem card in the Device Manager.

Setting modem card configurations

If your computer is equipped with a modem, follow these steps to view the interrupt
request resources or change the I/O addresses and memory range for the installed
modem card.
1. Right click on the My Computer icon and select Properties.
2. In the System Properties window, click on the Device Manager tab.
3. Click on View devices by type.
4. Do one of the following:
– To change or view the I/O addresses or view the interrupt request
assignment, double-click on the modem list item to expand the list. Then,
continue with step 5.
– To change or view the memory addresses or view the interrupt request
assignment, double-click on the HCFMODEM list item to expand the list.
Then, continue with step 5.
5. Double-click on the Modem item appearing in the expanded list.
6. In the Modem Properties window, click on the Resources tab.
If you need help in using the Device Manager, press the F1 key to view the online
help.
You must restart your computer before any Device Manager changes can take
effect.