here's my problem.. Suddenly, my graphics card fan is now running at 100%, and it's like a jet engine! I didn't mess with it at all. It does that after I press the power button immediately, so I think it's not OS related. I tried: 1. uninstalling the drivers and reinstalling. 2. flashing the mobo's bios. 3. opening the card cover and re-seating the fan power cable. 4. changing the fan speed in the AMD Catalyst control center doesn't do anything. N.B: I tried removing the power cables from the gfx card and it kept running at 100% also! I don't know how is this possible! all this didn't solve the problem, please help!