It was already really say much about this cooler. Yes, depending on the board, it can be very exhausting to install these. Yes, you should expand the board previously. I had to stop at the mounting bracket this to the center position in order to mount the cooler can. After a little over 2 hours incl. Cleaning the processor cooler was mounted and closed the midi tower again. The cooling capacity for my purposes perfectly okay (AMD Phenom II X6 1090 T 3.2GHz) and the noise level is really enjoyable. The only thing that bothered me a bit was the somewhat strenuous installation. I do something not often, but I think that in most powerful coolers, installation is a bit trickier. Therefore, I would like this product also deduct any point and gladly forgive 5 stars :)