I am intending to upgrade my system but keep a lot of parts for my new build (Case, Hard drive, PSU), but I need to get rid of my old stuff that I won't be using such as the Motherboard, CPU, and my question, the Operating System? I have an OEM edition of Windows 7 64bit that I bought when I first built my computer. I have the packaging and CD case w/ Key. I know you can't use OEM editions with different motherboards, but I know that it's tied to my current motherboard. So the question is whether I can sell my motherboard with the OEM Windows 7 disk (not including the hard drive). I've had some experience with a dead hard drive where all I had to do was buy a new one and installed the operating system on it fine. So I hope the same thing applies to the situation now so I don't waste it.