Ok. I know OC;ing. Winchesters do not like sub-zero temps if that pertains to you. Sledgehammer/claw are best for OC'ing though id getting watercooling. Get a 3000+...they will OC as much as a 3500+...the 3200 and 3500's arent good right nw witht the new onse they put out. A 3000 will OC as high as a 3500 so keep that in mind. PM if you need to know more.