Ok so based off recommendation of some people here I bought the Arctic Cooling Freezer 4 for my intel 4 cpu. I'm sitting here trying to install it because i was like "its a fan how hard could it be". Well turns out i cannot get the little punk to clip on. It has two bars that go across and clip into the original retaining mount on the mobo. I get the sides without the thumb push tabs in and then i go for the push tab side as in the installation instructions. For the life of me those thumb tabs will just not clip. It's sad because supposedly its supposed to be easy.