My old PowerBook G4 notebook computer sat in a tub of mildly soapy water by accident overnight. I put the computer in a warm place for a few days... I have an old aftermarket battery but the computer won't seem to run or even make a peep. I took the battery out immediately that morning, I couldn't see any changes at the time but later that morning it fried through the plastic. Is it worth anything, is it cleanable? This was one tough machine!