I got 2 mac minis. One doesn't stay on for more than 20 minutes.. some say its the motherboard problem, so I'm not the one to fix it. Its a Intel Core Duo, real nice mac, I loved it. My second one is a Intel Core Solo, used in a mac-car setup. That mini's soundcard is sounds like crap right now, all muffled. So, I'd like to know if I can swap it from the Duo. Anyone ever touch their soundcards? Or is it an integrated one?