heh oops actually was using 2008 1.13.12 sandra. I'll reload 2009 edition and rerun benches this afternoon or tomorrow With hard disk death and having to reinstall just trying to keep some info flowing

But yeah imma have to say that 3.8-4.0ghz will prolly be the sweet spot for most retail chips on good air cooling, and i again i have to say i suspect the 4+1 phase power is holding back stability because looking in the bios as the supplied vcore voltage it's anywhere between +.002v and .150 of what the cpu voltage is actually set to and i would thin that under operations that would be even more shakey. I can bench up to 4.0 but it isn't 100% stable and results aren't scaling as well as they should so not really worth posting IMHO.

Yes ACC seems to work so long as it's set to auto, i don't know enough about how it functions to go in and manually set % for any reliable results. But as for the undervolt i actually just grabbed the slider with the mouse and pulled it down to something under 1.25 =o)

Oh btw all other settings aside from Vcore and Cpu are stock voltages/freqs

I'm thinking of finally breaking down and putting this under water sometime in the next week or two along with putting it on a 750SB FX board just to see the limit of the thing. One thing that i must say about this BIOS is that it really doesn't like ANY changes being made. After every change i've made it hangs after saving changes and i have to cycle power again, but after that it will boot fine and stable. Where as when it isn't stable it will actually force me into the bios citing boot failure change setttings or reset to default. So i'm not sure if it's just the BIOS revision or the board itself.So more to come as i sort through my reinstall.