I have an emachine S1940. I can't get the fan to shut off. I put in a new mother board which corrected the fan problem, but windows wouldn't come up. I have heard that when you get an emachine with windows, the windows is somehow associated with the motherboard and therefore won't work with a new motherboard. Is that true? I need help to either determine what is causing the fan to remain on using the old motherboard, or figure out how to get windows sorking with the new moterboard.