Originally Posted by ggiwin

Do you still have problems with bf3 running CF? Try this and see if this will work. Apparently it's a fix for CF users. Seems like you may need to disable ULPS. What ULPS does is that it disables the second card to save power.
Battlefield 3 Crossfire issues? Complete list of known fix's here! 11.11b link inside!

There's other stuff to do as well such as getting certain ati drivers and CAP4

I'm using an i3 OC'd to 4.4 ghz, 8 gb ram, msi 6950 twin frozr III PE/OC. constant 90-110 fps in high. About 70-80 at maxed settings at 1920x1080 res