I tried this cooler then sent it back when it became mission impossible to install it. Went with a lepa water cooler and guess what? It went so smooth i knew this company had an idiot as a designer as the motherboard backplate is held on by loose mounting bolts. When you make a product you should have some R&D behind it not some rushed attempt to sell a product that takes an engineering degree just to put together. Obviously someone wasnt thunking hence i rerurned the cheap non installable cpu fan