Uhu.. yeah, I'm listening Damien.
It seems much like a "power management" or "Noise management" thingy.
I have searched the Video properties tab up 'n' down 30 times and haven't found a single bit regarding "In win, Fan ON"
Yeah, I don't really fear the stuff blowing up on me, since I have adequate number of fans, but I DON'T LIKE IT!
I like it cool... and ON !!
I can see a reference number in the FX5600 properties tab saying like "Gpu slow temp threshold... 134C" !!!!!
Does that mean that the gpu must be cooked to 134C before spinning the fan in windows??!?!
Weird... they could have told me about it, I'd like to know what cooks in my pc's.