I am a bit of an old timer and do remember how to boot a Data General using paper tape. However, I am a bit fuzzy on the meaning of a boot strap at 1066 or 1333. What exactly does this number represent and why does it change quixotically on some motherboards if FSB goes beyond the magic number (usually 400)? What effect does it have on the computer-is it just a difference during the boot process or is it a lasting difference after windows xp pro loads?