got round to fitting my akasa cooler today. I broke one of the push pins which meant within seconds of it booting up it would just cut out, as it wasnt contacting properly, but changed the position of the broken clip (turned heatsnk around so broken one at the bottom with less pressure on it) and its working fine! Not silent, but much quieter than my OEM intel one. I wanted a silent one but alas, it wouldnt fit in the case

quick pic of it in action


and yes, i know the cables are a mess!!