Lol, like I said, I used nTune. Worked fine for me, much better than Rivatuner... I never really liked Rivatuner, as it doesn't seem to want to keep my settings after a reboot no matter how many ways times I tell it to.
Also, I'll have you know that when I first got my 7950, it wouldn't even go to 1480Mhz. It was horrible when I got it, but it got better as it got more "burned in."