Failure to follow these instructions could result in damage to your equipment and may void your warranty. For this computer, you can replace memory in either the upper or lower RAM slot. Replacing memory in your computer requires up to nine basic steps: · Turn off the computer. · Open the computer. · Remove the heat shield. · Remove the processor module (if replacing RAM in the lower RAM slot). · Remove the RAM you are replacing. · Install the replacement RAM. · Replace the processor module (for lower RAM replacement only). · Replace the heat shield. · Close the computer. Note: A video version of the replacement instructions is available at http://www. apple. com/installparts Tools Required · Jeweler's flat-blade screwdriver · Phillips screwdriver Electrostatic Discharge (ESD) Static electricity, a normal and natural phenomenon, builds up on your body as you walk around. You experience an electrostatic discharge (ESD) when you touch an object and feel a spark. ESD can cause damage to the internal components of your computer. To avoid ESD damage, read and follow all instructions. If a grounding wrist strap is included with your replacement memory, refer to the instructions included for how to ground and use the strap. About Memory Your computer comes with a minimum of 64 megabytes (MB) of synchronous dynamic random-access memory (SDRAM) installed in a RAM slot on the bottom of the processor module. On the top of the processor module is another RAM slot you can use to add additional memory to your PowerBook. RAM Specifications The expansion slots on the top and bottom of the processor module can accept up to a 2-inch SDRAM card that meets the following specifications: · small outline-dual Inline memory module (SO-DIMM) format · 16, 32, 64, 128, or 256 MB · 144-pin · PC-100 Type RAM SDRAM from earlier PowerBook models cannot be used...