Note that your mouse may not work in selecting items in the BIOS setup, so you typically have to use the arrow keys to move between selections, and the Page UP and Page DOWN keys to change the value of a selection. Use Device Manager to check for any hardware conflicts, and if any of the conflicting cards are PnP, use Device Manager to change the resources so that conflicts are resolved. Make sure that you have the latest versions of all drivers for your cards. Check the web site of each card's manufacturer for any driver update for that card. They may have an updated driver to download, plus instructions how to install it.
Driver issues Another, even more common problem concerns software drivers.
The fact of the matter is that programmers do write buggy software, and there's a chance that any problem which looks hardware-related may actually be due to some bug in the card's driver. Check with the card's manufacturer that you have the latest drivers. Ask if there have been any problems reported that may be applicable to your own setup.