オリジナル投稿者： mayer ,
The first thing that comes to mind is your keyboard to logic board connection. Make sure it's seated. Next reset the the SMC (power setting), here's how: • Shut down the computer. • Plug in the MagSafe power adapter to a power source, connecting it to the Mac if its not already connected. • On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time. • Release all the keys and the power button at the same time. • Press the power button to turn on the computer. Note: The LED on the MagSafe power adapter doesn’t change states or temporarily turn-off when you reset the SMC.