i got the evo 212 and installed it, i checked online before i bought to see if it would fit and people had said it would, but whenever i put it in, the top of the 212 has these small protrusions that stop me from closing the case so to remedy this i had to remove the window part of my case to get the fan to fit, so now the fan is in but the case is partially open so dust is goin to build up faster. Have i installed this wrong? or is there something i can do to make the fan fit and i can put the window part back on my case?