Quote Originally Posted by Caveman787 View Post
Umm overclocking doesn't volt mod your card....it uses a slight bit more power as someone in other 4870 overclocking thread her proved. Like .003 volts change both idle and load from 750/3600-790/4400.

Proper cooling/ fan speed fix to keep things cool as you overclock is needed to avoid overheating causeing degredation however. Granted thats just my take on it.
Ah forget it...

4870 OCs with no voltmods that go past 825/1075 are not going to be 100% stable in almost any case. That has been my experience so far with 5 cards, various brands. I think this qualifies as a pretty good sample of cards so I'm fairly confident in what I am saying. Hence the reason why I said more speed + more volts = more heat. I know that for every single OC I did on the 4870 past those figures I stated above some sort of volt mod was required to achieve rock solid stability in every tool.