yeah all fans are running, according to speedfan speed01 and 02 are 100%, and in bios the cpu fan is running 2766 RPM. i played cod4 for 20 minutes and the temps got up to 56 celsius i have never seen it go up that high..the cooler also comes with mx-1 thermal compound pre applied. I have a q6600, dual 8800gt's running sli. nothing is overclocked all stock speed. If i put the stock heatsink/fan on do i have to reapply thermal paste? or should i just keep the new cooler and use a different type of thermal compound? im thinking of using arctic silver 5. thank you