Tony said 1.5V max with RD600 great. With 1.5V u get 450 some go as far as 470.
Question what voltage is needed for i975X and P965 for 460-470 fsb? With 1.65V my P5WDH maxed out at 422 and th chipset was pretty hot. Some can 1.85 and some vmod for more. Nobody told me it's safe for 24/7 use but i can imagine not safe. More with 1.5V u can 450 fsb on RD600, u have an E6600 so u can go for 4GHz, is ur cpu can do that? so Why more is needed for 24/7 use? for benching my max cpu is 4257MHz with coeff 9 so 473 fsb and i put 1.59V on chipset.I don't think i will burn my board for 2-3 hours benching with this voltage. I even do more for testing and my card is here rockstable.
Don't want to flame u Nealh but what do you want this board to do cuz i don't understand ur dissapointment?