im on a q6600, was using 801 bios.. flashed to 1002 and im running 3.6 solid as a rock!
Jultsu knows his stuff with this board read his sig for voltages, tho i crank my HT voltage a little more than him.
ive been able to bench running a 458 FSB on 801 but its not fully stable, i have not tried it yet with the new bios.