No MB would support that type of action, atleast not to my knowledge (having different types of processors/sockets). If your looking to do some sort of a battery type thing for your desktop a UPS is exactly that. Even though their expensive this is pretty much what you would need to do what your asking. If your getting such frequent power outages that also mean your probally getting a lot of brownouts and surges. I would heavly recommend your computer being on a UPS in the first place. Having a UPS is never a bad thing.