I cant get crossfire to work with my a8-3870k and my msi hd 6670. I uninstalled all amd drivers then installed the control center 12.8 for just the APU, shut everything down and plugged in the 6670 but nothing happens i dont get the crossfire option. in cpu-z it shows that two graphics cards are installed the 6670 just says graphics device. I tried running with just the hd 6670 and it works prefectly so thats not the problem. my motherboard is the F1A55-LX plus and crossfire works with it.
Any help would be greatly appreciated, I feel like ive tried everything