Ursprünglicher Beitrag von: remacberlin ,
You are basicly on the right track in my opinion. Drown the thing in isopropynol for a couple of days, brush everything off thats not supposed to be there, dry it thoroughly and try your luck. All these boards have microfuses on them (small rectangulare parts) that can be replaced but i have to do a little research here myself before i can tell for sure. I am certain that Apple does nothing else than cleaning and replacing a few fuses when they sell a "refurbished" board for $$$.