Orient the computer so that the side with the line of screws on it is away from you. Use your thumbs to push both battery release tabs away so that the edge of the battery lifts up. Lift the battery out of the computer. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s900 Remove the three identical Phillips screws from the memory door. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s904 Lift the memory door up enough so that you can get a grip on it, and slide it toward you, pulling it away from the casing. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s905 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. Pull the chip directly out from its connectors. If there is a second RAM chip installed, pop it out in the same manner. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s906 This is a diagram of the trackpad ribbon clamp connector you will disconnect in the next step. 1) With your fingernails, grasp the locking bar on either side slide it a small amount (about 1/16" or 2 mm) towards the battery. 2) After disengaging the locking bar, slide the cable out of the connector. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s907 For this step, you only need to move the connector about 2 mm. Pulling too hard or too far will damage the connector. Loosen the trackpad connector by pulling the locking bar toward the battery housing, using the tips of your fingers. Slide the trackpad cable out of the loosened connector. When reattaching the trackpad ribbon cable, make sure that the orange cable is slid into the connector above the locking bar. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s908 Remove the following 10 screws from the bottom case: Three 1.7 mm Phillips from the front edge of the battery compartment. One 3.9 mm T8 Torx to the right of the memory card. One 6.9 mm T8 Torx at the left edge of the memory compartment. Three 12.4 mm Phillips from the center of the row of screws along the back edge of the case. Two 15.1 mm Phillips, one from either end of the row of screws along the back edge of the case. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s909 Turn the computer over and rotate it so that the DVI port faces you. Remove the four identical Phillips screws spread along this edge of the case. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s910 Turn the computer 180 degrees so that the power receptacle faces you, and remove the four Phillips screws (identical to those in the last step). /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s911 Open the computer and turn it so that the screen faces you. Pull the upper case off, lifting from the back, and working around the edges. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s912 Use a spudger to loosen the casing if it sticks. Once the casing is entirely free, lift it off of the computer. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s913 Disconnect the orange ribbon from the right side of the modem, removing tape as necessary. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s937 Remove the three 4 mm hex nuts using a nut driver or needle-nosed pliers. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s938 Lift the modem partially out of the computer, disconnecting the modem cable before pulling it entirely away. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s939 Place the computer on edge (with the display open). Remove the black bumper and disconnect the Airport Extreme cable beneath it. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s940 Back inside the computer, disconnect the Airport antenna cable at the gold connector, making sure you pull only on the gold metal portion of the connector. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s941 If you have not already done so, disconnect the hard drive ribbon and PC card cage ribbon from the left side of the logic board. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s942 Remove the four Phillips screws from the corners of the PC card cage. The longer screws go on the right side of the PC card cage. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s943 In the following step, the connector you disconnected from the underside of the logic board may catch as you're pulling the card cage out. Of course, the same issue may arise when putting a card cage back into the computer. Hold the PC card cage on the left side and pull it out of the computer. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s944 Your laptop should look approximately like this. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s945 Slide the Airport card from the back of the PC card cage. /Guide/Repair/PowerBook-G4-Aluminum-17-Inch-1-1-67-GHz-Airport-Extreme/252/all#s946