Wow! That is a great overclock! I can't even get it go to up 20 MHz on the top... no idea why... I get the blue screen of death... anybody know why? overheating perhaps?
Check your temps, check your drivers...and check to make sure the card's in. I have this problem w/ my firewire card - i think it's either the drivers or that it's not in or summat.
about the same....it's tiny ass resistors and I've already had one bunked experience myself....gotta have steady hands, good eyes and know how to properly solder.