Well, that's a Mac. They're like, superhuman or something. At least that's what the Mac people say. ;-)

But seriously - is it possible to have a 64 bit cpu on a 32 bit board? SO what exactly is it that makes a mobo 32 or 64 bit anyway?

However it seems kind of a waste to me. The price of a good 64 bit mobo is less than that of a good 64 bit cpu. It would seem to me, might as well update the board along with the cpu.