Hello,

I have an issue that really has me scratching my head. I'm running an EVGA 750i FTW mainboard with a Q9450 processor overclocked to 3.2. I've had the system running stable for years. I have since upgraded from two GTX 280's to two GTX 580's.

The problem I have is two fold. One, when I start the game up I must go into options and disable vsync, then re-enable it or it runs at like 10 FPS. The second and most problematic one is when I have sli engaged, the game runs fine for a little bit and then crashes. It does not do this in Single card mode, of course the performance is not as great, although still definitely playable.

I am running all the latest drivers and crysis is patched to 1.9 with both dx11 and high res packs installed. Any ideas?

how powerful is your PSU?
my i5 760 @4.2 bottlenecks 2x 580s running Crysis2.
Try boosting your GPU voltage by 0.05

Increase your VC voltage to 1060