Boards have preset dividers that kick in at certain fsb's. As in 1/4 at 133 fsb gives 33Mhz PCI speed. THey are built to give PCI 33Mhz and AGP 66Mhz. On my epox i also have a 1/5 divider so it resets to 33/66Mhz at 166Mhz, but at 200Mhz which I'm trying to hit the speeds are 40/80. The PCI slots are handling this extra speed, only a soundcard on them, but my AGP card is running my GF3 at past its speced speed and is causing all kinds of artifacts and crashing. With a beta bios for my board I can get the speeds writen in the bios so i can check what dividers I have. I don't know how many other boards have this option. Give us some more info on your system and we'll try to help you out. Or e-mail me.
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