A huge chunk of my cool overclocked Intel Core 2 Duo 6700 very quiet. Usually, the speed is just at 620-680 revolutions, from MB gesteuert.Mein housing a Cool Master's Stacker because ergerade fits. However, it is too high for the motherboard tray. Backplate must be installed. From the tower coolers still one of the lightest. Very good cooling performance. I found the installation now not so difficult. There were problems with the 8ter processor power connection because no space for a hand between cooler and housing remains. Langer Phillips screwdriver is mandatory.