so wait, i get all of that no problem. but can you help me out on one bit, its the PLL strap that kicks in at certain fsb, so with the 401fsb start, what exactly does that mean. in that case if you boot at 401fsb it will lock that at 1066 strap with normal timings so no loss in performance. would that mean the northbridge is running a different divider and the normal (stock) speed despite the cpu being at a much higher divider? if thats the case then there should be a lot of head room for fsb from 401fsb up if the northbridge is essentially at stock at this point? or if not, what does the pll strap do differently?

cheers