4:5 is not the divider to use with this board. NB voltage will most likely be maxed out before 450 FSB is reached.

Quadcore clocking requires patience and perseverance. And then it's all in balancing the settings to work at that particular FSB.

Have a look staring at post #22.

http://csd.dficlub.org/forum/showthr...1391#post31391