the fcpga's are the ones most folks have gotten to 933.Be aware that the bh6 has a 1/3 divider at 133,not a 1/4 like newer versions do.Your pci bus will be at 44.3,not 33mhz.Some sound cards,harddrives,nic's,ect dont or cant take that for long.An unstable system can result.Not to be a bummer or anything,go for it,many have run like that for ever with no prob.