Of course, yes.<BR><BR>However it is best to make sure all cards can use the same driver pacakge.
While ATI's Radeon Xpress 3200 Crossfire chipset was originally designed to be a competitor against nVidia's nForce4 SLI X16 chipset, it also holds its own against nVidia's newer nForce 590 SLI ...
A motherboard's main job is to act as a conduit between the various hardware elements that make up a PC. It needs to be able to link the desired CPU(s), system memory, graphics card, hard drive(s), ...