people may have tried a little harder overall in this thread, but even the first few posts when people just got their chips in, pretty much everyone could hit 4.0 on normal ambients without much problems..

and my c3 NB isnt very strong either, does 2.6ghz w/ 1.25v stable (maybe less ill have to test further), but i dont think i can get it stable @ 2.8 on air even w/ 1.35v+