I can't game on this board with 500+ FSB, as it makes the games play in fast forward, even the menus etc run at super speed and its ridiculously unplayable. For example if I play a Need for Speed title, the cars take off at what looks like 600 KM/H and you crash almost immediately. it does not matter what multiplier or divider i choose, and changing every setting does not prevent it from happening. At 499 FSB or less its ok. That is also one of my reasons for using a sub 500 FSB setting. BTW my P5Q-Deluxe did the same thing, i think it may be a P45 'feature' lol.