I bought the Hyper 212 Evo http://www.newegg.com/Product/Product.aspx?Item=N82E16835103099 to replace my current CPU fan, seeing as the stock fan isn't very good and I've been having heating issues, so there's that. I know how to mount the fan and everything, but after watching a video on how to mount the fan, the guy in the video opened up the side of his case where it showed the back of his motherboard, and there were 4 screw holes and everything seemed all dandy for him, but I opened mine up, and I'm just attaching a picture because it's hard to explain.
Video: http://www.youtube.com/watch?feature=player_detailpage&v=ZEhwJPuc4wM#t=666s
My picture:
Video: http://www.youtube.com/watch?feature=player_detailpage&v=ZEhwJPuc4wM#t=666s
My picture: