I found the overall installation process of the Cooler Master Hyper 212 EVO to be, at times, quite confusing. As aforementioned, all of the installation components are located in the included accessory bag. The backplate of the unit allows one to install it for both AMD and Intel sockets, which is nice. However, the method of installing the heatsink onto the CPU requires slowly sandwiching the base of the heatsink onto the CPU by screwing on the provided retention plate. Of course, it doesn't sound that bad, until I tell you the retention plate is not fastened onto the heatsink backplate in any way, besides slotting the middle of the retention plate onto the back of the base without screws or washers. In fact, after the Hyper 212 EVO was installed, I was still able move the heatsink in a twisting fashion -- scary.

The installation of this heatsink features no mounting brackets at all. The usual process of installing an aftermarket CPU heatsink requires the heatsink be screwed onto mounting brackets, as they tend to give a certain solidity to the installed product. However, this cooler uses a single retention plate setup that tries to play both roles of being attached to the screws, and being someone of a mounting bracket. And as stated before, the result seems very confusing, uncertain, and very wobbly at times. The above image actually shows the only thing that needs to be screwed onto the backplate before you sandwich the CPU between the cooler using the retention plate. No rubber washers, no mounting brackets -- nothing.

Something to note is that the heatsink fins are fairly low, and the 120mm fan may have a tendency to get in the way of higher profile RAM heatspreaders. Therefore, you may find yourself needing to remove the heat spreaders on your RAM due to clearance issues.
http://aphnetworks.com/reviews/cooler_master_hyper_212_evo