why not try download
RivaTuner v2.24c download from Guru3D.com
Then install and open up the program, and follow this:
RivaTuner 2.0 fan speed & Overclock Guide
if you just change the fan speed to 100 and leave it when you play games..
It should have a massive improvement and bring the temps down while playing a game
Let me know if you need further help, you can just change the fan speeds instead of setting up a fan profile, that's what I do..so when I play MW3 i open rivertuner switch to 100% and close it and play