Nice...
That actually reminds me of something Tyranicus did, he had a p4 based system (2.4GHz Northwood, Asus VIA chipset board) where the mobo died. Since he wasn't quite ready to buy a whole new system, he got a cheap Socket A system to replace it. The new board, although Asus, has the nVidia nForce2 chipset, and so is about as incompatible as you can get.
He happened to put in his old Vista hard drive (the one that was on the 2.4GHz P4), and it actually booted off of it. And not just booted, but went all the way to the OS, and worked! I had never heard of anything like that happening before in my entire life, and he and i both just sort of stared at the screen not believing what we were seeing.