yeah that would be pretty stupid if corsair made a cpu cooler that didnt even fit into their own case. And its a double radiator design so its not to big so you should be fine
Alright awesome and by the way is there any other place to mount an h100i in a 650d other than the top
i believe thats the only place where there are two 120mm fans will go
Yes an H100i is top-mounted only.
If you remove the bottom (or top (or both)) drive bays you could place the h100i in the front intake - it has space for 2 "140mm" fans. Wouldn't look quite so good but should *in theory* still be possible.