I have gtx 580 OC to 950 cor. 2100 memor. With 1.125 volt. Some people saing that it's not good to go over 1.12 V. I don't run the card at that speed 24/7 only when i play high end games and my GPU temps is 25 C idle and 36 C full load. Am i safe? Because i am thinking to use this card for coupl years.
I think that you can go higher but only if you have very very good contact between the power vrm phases and the block. After living and breathing everything there is to know about graphics cards I can tell you that you want to go over kill when it comes to dealing with Fermi era cards. If contact is poor you need to scale back your voltage until you have the problem fixed or you will have a brick at some point down the road.