Originally Posted by Joeking78
I have mine on 800 with the P5B-D and and FSB of 400.
No BANG yet and it runs at 800mhz
your mobo adjust for the fsb speed though
so like a stock fsb of 266 shows 533/667/800 and such
chang your fsb to 270 now it reads 540/675/810
some boards might not show this and so even at 400fsb it stil might show 533/667/800 even though 533 could really be the 1:1 ratio and as such would run at 800Mhz.