I thought serve me this fan to perform a push-pull system to a cooler artic freezer 13 but it does not work, no change in temperatures. I know it is not at all suited to the base and that I should see again but installs just like that stalling the suction fan fashion against the huge silver radiator: no difference in temperatures, nothing. I must say that the arctic freezer 13 is already very good at so good base, I wanted to try. It's changing my overclock settings I was able to earn degrees in less .. I could have saved almost 100 balls (yes there are in francs when we realize that these things are expensive for what it's ..). Otherwise very solid!