Hi this is my first time posting on this website! So my brother a year ago had a mac and book air 13inch with the i5 etc. It started to have the cpu fan run at max speeds, when checked they said that it was affected by condensation. My brother went on many trips to ski and our thought was that he was going up and he has been out a lot so much that the macbook was affected. I was thinking that I could fix it by opening the mac up and getting the motherboard and baking it. Could it work? thanks. It does turn on but is loud and programs are slowing down.