I plugged in a nforce2 installation hdd into an Athlon64 board with a VIA chipset. I didn't try to "repair" anything, I just let Windows boot and detect the new hardware. It worked without problems. I did eventually reformatted the drive but that was for tweaking purposes
In fact, the opposite also worked. The VIA A64 configured hdd is still booting my nForce2 board, startup is still loading up the VIA raid utility and it's been running fine for two months now.
Both installs were SP2 though and that might make a difference.
Thanks, but it seems that going between Intel and AMD is a different story. Anybody have success with that?