Yeah, I can't see the whole thing but it looks like the entire loop is going through that single 140mm radiator on the back. Adding another fan to it for push-pull might help a little, but you really need more surface area to cool a loop with a pair of Titan X attached to it. Actually, looks like there is a radiator on the top. It didn't look like there was enough space for one at that angle. Might just be a skinny one.