Got my new mobo and CPU but my second 4850 doesn't come until after Labor Day and I'm not willing to wait overnight for UPS to deliver as I want to be out of town as much as possible (still on break, hate this city of Seattle). I'll obviously be needing to reformat/reinstall OS and whatnot but would I have to do it again once I stick the 2nd 4850 in it? Should restate it this way... would be it recommended to reinstall/reformat or can it do without?