"standby light glowing but not starting up" için yanıti have same problem with my macbook pro 15'. it starts only after i heat it for some time with hair dryer without doing so it wont start at all.
"Logic board or left I/O board problem?" için yanıtI have same problem. My macbook pro starts only after heating it by forcing it to start with dc power for several hours, but under normal condition when i press the power button the fans start, HD powers up, so does Super drive but only for a few seconds. I had the logic board replaced a few months ago because the screen didn't turn on, now this problem is really turning me mad. :-(