Okay then I think I have the perfect fan for youhttp://www.sidewindercomputers.com/de12gf.html
Order 4 of those, and come back to tell us how you like the 72db. Oh wait oops, wrong fan 4 of those is "only" 65db. I think you'll like this one more http://www.sidewindercomputers.com/de12tfexhisp.html
Oh oops I forgot, your water temps aren't at 80C so you won't "see any real world performance difference" therefore your expensive koolance rad (I know you paid a lot of money for it, stop trying to hide :P it cost MORE than a thermochill plus better pump) is "total junk" right?
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