Use a coin to rotate the battery-locking screw 90 degrees clockwise. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1066 Lift the battery out of the computer. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/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-Heat-Sink/292/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-Heat-Sink/292/all#s1069 Remove the following 3 screws: One 11 mm Phillips in the middle of the case. Two 14.5 mm Phillips. If the screws stick in the case, you can use a magnetized screwdriver to draw them out. The shorter of the three screws goes in the middle. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1075 Remove the following 3 screws from the rear wall of the battery compartment: Two 3 mm Phillips. One 4 mm Phillips on the right side. When reinstalling these screws, it may be helpful to push down on the lower case to line up the screw holes. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1076 Remove the two Phillips screws from either side of the right wall of the battery compartment (not the ones closest to the battery connector). /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1077 Remove the four indicated Phillips screws from the front wall of the battery compartment. When working from the left, remove the 2nd, 4th, 7th and 9th screw. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1078 Remove the following 4 screws from the back of the computer: Two 7 mm Philips on the far sides. Two 10.5 mm Phillips toward the center. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1080 Remove the two Phillips screws from the optical side of the computer. It is not necessary to remove the similar screws on the other side of the computer. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1081 There's a trackpad and keyboard ribbon connecting the upper case to the logic board, so don't pull the upper case off entirely just yet. Starting near the display and working around to the front of the computer, pry up on the upper case. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1082 While holding up the upper case, use a spudger to pry up the orange trackpad and keyboard cable from its connector. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1083 Carefully peel up the black felt tape between the heat sink and fan. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1127 Peel up the small black rubber cover from the right side of the heat sink. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1128 Disconnect the two newly-revealed temperature sensor connectors from the logic board. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1129 Remove the four Phillips screws securing the heat sink to the lower case. Be sure to secure ground loop for the speaker cable beneath the screw in the lower right corner. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1130 Lift the heat sink out of the computer, making sure that the black tape doesn't catch on the heat sink. If you need to mount the heat sink back into the laptop, we have a thermal paste guide that makes replacing the thermal compound easy. /Guide/Repair/MacBook-Core-Duo-Heat-Sink/292/all#s1131