Apple M9690LL User Guide - Page 57

Adding Memory 4 to Your PowerBook 4 This chapter provides information and instructions for installing additional memory in your PowerBook. Warning: Apple recommends that you have an Apple-certified technician install memory. Consult the service and support information that came with your computer for instructions on how to contact Apple for service. If you attempt to install memory and damage your equipment, such damage is not covered by the limited warranty on your computer. Your computer comes with two memory slots, one above the other, that you access from the bottom of the computer. Your computer comes with a minimum of 512 megabytes (MB) of 533 MHz Double Data Rate (DDR2) Synchronous Dynamic Random-Access Memory (SDRAM) installed. Both memory slots can accept an SDRAM module that meets the following specifications:  Double Data Rate Small Outline Dual Inline Memory Module (DDR SO-DIMM) format  1.25 inch or smaller  512 MB or 1 gigabyte (GB)  200-pin  PC2-4200 DDR2 533 MHz Type RAM Note: Your computer processes data at the speed of 333 MHz. Depending on the configuration of the PowerBook you purchased, both memory slots might already be full. The maximum amount of memory you can install in your PowerBook is 2 GB, using 1 GB DIMMs in both memory slots. 57