Ultra Low-profile cooling

Rosco100

Honorable
Apr 19, 2013
36
0
10,540
So i'm having a go at a system using one of the new Kaveri APU's in a custom case for Home Theatre and whatever gaming it can manage. The problem is case height, its 41mm, leaving about 25mm for cooling after mobo and cpu are in.

I've tried one of these in there but it doesn't really fit, despite it being described as being 28mm.

Does anybody have any ideas about what cooling I could get into this case??
I thought maybe a closed loop liquid cooler or a heatsink with a horizontal heat pipe, (I think they exist)