Apple MACBOOK - Manual (Page 80)

80 Chapter 4 Adding Memory to Your MacBook
 200-pin
 PC2-5300 DDR2 667 MHz Type RAM
For best performance, fill both memory slots and install an equal memory module in
each slot. The maximum amount of memory you can install in your MacBook is 2 GB,
using one 1 GB DIMM in each memory slot.
Installing Additional Memory
Installing memory involves removing and replacing your battery. The following
procedure includes instructions for adding memory and replacing your battery.
Step 1: Removing the Battery
1 Shut down your MacBook. Disconnect the power adapter, Ethernet cable, and any
other cords connected to the MacBook to prevent damaging the computer.