This board allows people to boot and enter windows @ 650FSB on duals, and 560FSB on quads. That is probably because of the Rev.A3 chipset. But due to its 6 power design only, I haven't seen people doing good stable FSB on this board, neither on dual or quad cpu's. Also, this board needs more volts then other good p45 boards, to perform the same overclock, and it heats way more.
For this reasons, I believe so far this is a good board to bench with, but for 24/7, I have my doubts. Maybe it needs better bios or so.