It wouldn't hurt to go into setup to reload your bios defaults I don't think. I'm not sure how that is affected when you format and reinstall the OS. The factory defaults are set because of compatibility issues and so if worse comes to worse, go into those settings and "load default settings". It is an option when you press F10 while Windows is loading. I forget which area allows you to reload defaults, but you can go through it and check it out. Just don't make changes that you are not sure about.

The load defaults shouldn't ever be a problem unless you did something like exchange out a processor or reconfigure your storage devices, etc.