Mid 2010 MacBook Pro only boots up SOMETIMES.
I have a macbook that only only boots up occasionally. When it does boot up it works perfectly until you shut it off, and other times it is completely dead. No fans spinning no hd or optical drive sounds. It doesn't even beep when I remove ram and try to boot up. Im pretty sure it's the logic board. I want to get an idea of what is possibly causing this issue. I don't think it's the DC-in board because it charges and the light is amber/green depending on the battery level. Maybe there is a short on the board somewhere? Possibly ppbus g3h? It does work on occasion so I'm not sure if something might be sent to the wrong the place only sometimes.