Like most electrical components inside computers, memory is susceptible to damage by static electricity. NEVER handle memory our computer parts if you have any static electric-ity buildup. Before working with sensitive electronics, touch a large metal object to ground yourself. If you have an antistatic ground-ing strap, use it while working with your computer. Overview The memory modules for the PowerBook G4 are easy to install, but the steps in this guide should be followed exactly. Be sure to read this entire instruction guide before you begin.

TO INSTALL NEW MEMORY MODULES IN YOUR APPLE POWERBOOK G4: 1. Shut down your computer. Disconnect the power adapter, phone cord, and any other cables connected to the computer. Turn the computer over (See Figure 1) and remove the battery by using a coin or flathead screwdriver to turn the battery locking screw 90 degrees clockwise. (NOTE: Please follow all ESD requirements.) 2. Using a Phillips size 00 screwdriver, unscrew the memory door and remove it from the bottom of your computer (see Figure 2). 3. If you already have a memory card installed in the slot, and you wish to use your new memory card in addition to it, you must remove the existing card to gain access to a second slot underneath the existing memory card. Once you do that, you may insert either memory card in either slot. (If you intend to use ONLY your new memory card, install the new card in the upper slot and leave the lower slot empty, as it was when you got your laptop.) Spread the tabs in the slot away from the notches in the memory card. The card should pop up slightly. 4. Insert the new memory card into the proper slot at a 30- degree angle. 5. Press down on the memory card to lock it into place (see Figure 4). 6. Replace the memory door and screw it into place. (NOTE: To avoid damage, be careful not to overtighten the screws.) 7. Replace the battery. 8. Reconnect the power adapter and any other cables that were attached. After installing additional memory, do the following: 1. Start up your computer. 2. When you see the Mac OS desktop, choose Apple > About This Mac. (NOTE: The total memory number shown includes the amount of memory that came originally installed on your computer, plus the new memory you added.)

Download Memory Upgrade for Apple PowerBook G4 15? Installation Guide pdf