i was on the fence about H2O for a long time. when i switched from intel to amd, and my first AXIA would do 1.5/2v on a cold night, case open in the garage, but could barely do 1.4/1.85v inside w/ the case closed, i knew what i had to do. i did it homemade, was a full day's work, but it's bullet proof. 4 months running w/ 1 water change, nice low temps, etc. etc., i did cook my bird w/ 2.25v (some may argue it wasn't necessarily voltage, but i think so) - regardless, will stick with 2v from now on, the extra .3v only bought another 50mhz - hardly worth the risk