Hi allI have a 860 cos im broke but the thing is under a custom loop. I really want to get it to 4.2, and I can... but 1.4325v is required. my temps stay in the 60s (it has a full loop for itself inc a 240mm rad, xspc block and a thermaltake pump). I'm very happy with these temps just not sure how high the voltage can be before I'm reducing the lifespan of this cpu rapidly (due to parents not liking me spending heaps on pc parts).