I recently upgraded my PC a bit, and removed my single XFX Radeon 6850 HD card for favor of 2 XFX Radeon 7770 HD GHz Edition cards in Crossfire. I uninstalled the old drivers, loaded the new ones, got plenty of power and the rig to sustain it. Even installed the Crossfire Application profiles like a few suggested.
But when I get into a game like BF3 (Before I had clean 40 frames with the 6850) I lag and lose frames like crazy, reduced to only maybe 15 frames. AM I missing something?
CPU: AMD FX-8350 8 Core 4.0GHz
Ram: 8 Gigs
Mobo: ASUS ROG Crossfire Formula V
PSU: XFX 650W 80 Bronze Single Rail
GC: Radeon 7770 HD GHz Edition x2 in Crossfire.
The Geek will inherit the Earth.