OK, so trying to find the max FSB for my new Epox 9npa+.. Multiplier at 5x, ram at DDR200. Running in-place ffts, 250fsb is fine, but 260fsb crashes instantly, and has corrupted the HD both times. OC Workbench claims 300fsb fine, right out of the box, and 260 is silly low anyway, so what am I doing wrong and what can I try to do to fix this?