I have been running this board with 3.4 or 3.5 volts since I got it in feb. I do have a fan over the ram and one over the corner of the motherboard. I game for hours, record from tuner card for hours, run prime overnight, memtest overnight, ( always trying to get more out of it ) I have had no problems whatsoever. I don't see how dfi would give you this option if it were not ok to use it.