[Kymmy]

Nope, what I'm saying is that if you change hardware in a way that makes the HAL crash then windows will fail to load and there is no way of repairing it unless you fully rebuild.

There are certain upgrade/downgrade routes you can follow where hardware will use the previous set-up and will be happy enough to actually boot (these though are undocumented).. In those cases Win7 will then remake the HAL depending on what devices are automatically found, but in a high percentage of cases of chipset/CPU migration the HAL will just fall over and you'll end up with a constant reboot cycle.

All we can do is try, if it works then you're one of the lucky ones, if it doesn't then you have a full rebuild on your hands

Also when you changed your motherboards you used the same chipset. As long as there's no revision change then in essence the HAL would perceive no changes