Use a coin to rotate the battery-locking screw 90 degrees clockwise. /Guide/Repair/MacBook-Core-2-Duo-RAM/512/all#s2425 Lift the battery out of the computer. /Guide/Repair/MacBook-Core-2-Duo-RAM/512/all#s2426 Unscrew the three evenly-spaced Phillips screws from along the rear wall of the battery compartment. The screws are captive to the metal memory cover. /Guide/Repair/MacBook-Core-2-Duo-RAM/512/all#s2427 Rotate the L-shaped memory cover so it clears the battery compartment opening and lift it up and out of the computer. /Guide/Repair/MacBook-Core-2-Duo-RAM/512/all#s2428 Pull back on the metal lever and slide the RAM chip out from its compartment. Unlike the iBook line, the MacBook has two RAM slots. /Guide/Repair/MacBook-Core-2-Duo-RAM/512/all#s2429