I considered trying an IFX-14 - but wasn't sure if it would fit in between my RAM slots and the heat-sink on the mosfets (with fans). Let alone if it would foul up the northbridge heatsink when turned the other way (not the m/b in my sig - I'm talking about an EVGA Classified). So I decided to try the Prolimatech Megahalems. It fits fine, even with dual (25mm thick) fans.
How much was it?