Ok, so the arctic cooling fan works about the same as my stock unit..My concern on the 2 coolermaster units mentioned above is the height. I have the coolermaster rc-335 case, it is 7.29" outside width. The hyper 212 is listed at 156mm i think..which would be about 6 3/8". Since the MB is raised above the case side..sounds tight. I better go measure. If it doesnt fit, whats a bit smaller option?