Installing MacBook Pro 15" Core Duo Model A1150 RAM: Step 1 Use your fingers to push both battery release tabs away from the battery, and lift the battery out of the computer. /Guide/Installing-MacBook-Pro-15-Inch-Core-Duo-Model-A1150-RAM/481/all#s2235 Installing MacBook Pro 15" Core Duo Model A1150 RAM: Step 2 Remove the three identical Phillips screws from the memory door. Make sure to record which sets of screws came from where. This will help when re-assembling. /Guide/Installing-MacBook-Pro-15-Inch-Core-Duo-Model-A1150-RAM/481/all#s2236 Installing MacBook Pro 15" Core Duo Model A1150 RAM: Step 3 Lift the memory door up enough to get a grip on it, and slide it toward you, pulling it away from the casing. /Guide/Installing-MacBook-Pro-15-Inch-Core-Duo-Model-A1150-RAM/481/all#s2237 Installing MacBook Pro 15" Core Duo Model A1150 RAM: Step 4 Release the tabs on each side of the RAM chip at the same time. These tabs lock the chip in place and releasing them will cause the chip to "pop" up. /Guide/Installing-MacBook-Pro-15-Inch-Core-Duo-Model-A1150-RAM/481/all#s2238 Installing MacBook Pro 15" Core Duo Model A1150 RAM: Step 5 Pull the chip directly out from its connector. If there are two RAM chips installed, repeat the above procedure for the second chip. /Guide/Installing-MacBook-Pro-15-Inch-Core-Duo-Model-A1150-RAM/481/all#s2239