Thx for your reply Ghostleader,
I am planing to run 450 MHz fsb@600MHz ram speed and a PL of 6.
That means I should fire up 1.35v to the cpu and 1,51v to the nb.
Water cooling might reduce the electromigration too.
(I hope I translate this right; electromigration means that the electrons hit wholes through the tiny transistors so they wonīt work anymore. Good cooling shloud prevent that {?})