I have a MSI GTX 680 power edition gpu. Right now core clock is 1202 with stock core voltage. I have memory oc to about 3200. I tried just about everything using msi after burner increasing core voltage and percent the gpu is allowed to use then making memory clock stock speeds... just increasing core but I can not get it above 1230 stable. I can get it at 1230 but crashes every here and there when running demanding games like far cry 3. Do I have a bad card or just with stock bios I can not get a higher oc. Not sure if this helps but using msi afterburner anything 100 plus on core MHz over stock speeds makes it crash. I do not think its the voltage demands because I increased that to max before and still crash once I go over stock clock by 100. Could it be a limit set by msi or nvidia because once I hit the 100 mark? Games run for a minuet, if that, before crashing. Should I try forcing voltage? MOBO: Asus® Maximus V Gene Featuring Lucid Virtu MVP, SupremeFX III Sound, CrossFire and SLI