Chosen Solution
macbook a1278 2008 when i plug the battery the fans are automatically start to work very loud and computer dont power on when i press the power button what it could be?
Without a known good logic board, RAM & drive with the proper OS to help isolate this would require a deep understanding on how to test the logic board. I think your best direction is finding someone with the deeper skills to help you. This is at a state we just can’t troubleshoot remotely.
