xiinc37 :
This kind of thing is why I use msi afterburner. Just set your own fan curve.
That is not how powertune works.
It's: Get Hot -> Get loud -> Drop clocks -> Get as loud as necessary to keep GPU from melting.
So having a 'custom' fan curve does nigh nothing.
E: I wonder what would happen if you fed the card hot air. What happens when you're at 100% fan speed and still pushing 96c+? Does it shut down, clock down even more or melt?