Mobo/CPU changeout - Windows reinstall required?

[dl8860]

As title says, I'm changing my mobo/cpu. Will I need to format my hard drive and start again or will I be able to carry on as normal? I have read conflicting things from google search so thought I'd see what people had to say on here.

If I didn't reinstall and it did work OK, would it be sub-optimal in any way? Or would it be a case of it either works or it doesn't?

 

[dl8860]

Well it's not intel to intel, I'm going from AMD AM3 (athlon II) to B250 (g4560).

Think I'll give it a go and see how I get one, have done a recent backup so no problem if I do have to.

Cheers