Use a coin to rotate the battery-locking screw 90 degrees clockwise. /Guide/Repair/MacBook-Core-Duo-RAM/280/all#s1066 Lift the battery out of the computer. /Guide/Repair/MacBook-Core-Duo-RAM/280/all#s1067 Remove 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-Duo-RAM/280/all#s1068 Lift up on L-shaped memory cover, slide it to the right, and lift it out of the computer. /Guide/Repair/MacBook-Core-Duo-RAM/280/all#s1069 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, which allows for up to 2 GBs of memory. /Guide/Repair/MacBook-Core-Duo-RAM/280/all#s1070