I'm currently in the process of building my own computer for the first time, and I'm unsure about installing the heatsink. Its got a metal clip on either side and I get one no problem, but the other one seems like its going to take some pressure to snap it into place. I'm afraid I'm going to put too much pressure on it, and end up cracking the processor. It is normal to have to press the clip down to get it into place? thanks.