The VapoChill LightSpeed [AC] linked above is the most powerful commercial phase-change unit on the market today for cooling your PC's processor. Just the other night I used it to accelerate an Athlon FX-55 to well over 3.2GHz for a comparison to today's review sample. That's scary cooling prowess. There's a couple of things that stop the LS being truly popular, cost aside. The first is the need to modify your case to fit it and that it pretty much locks you in to using Lian-Li chassis. Secondly, it's a bit noisy.



Link: Hexus