Postagem original de: TCRS Circuit ,
Maybe you'll get lucky and it'll be a bad charger controller chip. That chip sends out the main power rail of the computer. However, I want you to open the bottom case and with the lid open, keep watch of what the fan does. Spin for a second then shut off = Power cycling. This is the issue that board repair techs rip their hair out with. In your case with that board, it will almost always be caused by the GPU (Graphics chip) being shorted. Spin continuously but no chime = No brain. The GPU is dead and is stopping the machine from posting. No spin = System is not reaching an operational state and can be fixed by a board level technician.