"Just some more updated info.
A test of the H100 in Define R4.
It fits with a few mm to spare, and this is a fairly standard motherboard with large heat sinks for the VRM. Overall we can fairly safely say the H100 fits the majority of mainboards.
This test was done with only a couple of screws and the angle of the photo is pretty bad, so it looks even tighter than it is.
Conclusion:
H100 fits in standard configuration on the majority of mainboards.
H100 in push/pull will not fit."
Fick jag som svar från deras support när jag ställde frågan till dem.
Fick även den här bilden.
http://i.imgur.com/hcMN8.jpg