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58 Chapter 4
Installing Additional Memory
Your computer comes with two memory slots, one above the other, that you access by
removing your PowerBook keyboard. Your computer comes with a 64 or 128 megabyte (MB)
Synchronous Dynamic Random-Access Memory (SDRAM) module installed in the lower slot.
The upper memory slot can accept a SDRAM module that meets the following specifications:
m Small Outline-Dual Inline Memory Module (SO-DIMM) format
m 1.5 inch or smaller
m 64, 128, 256, or 512 MB
m 144-pin
m PC-100 Type RAM
Note: SDRAM from an earlier PowerBook that meets these specifications can be used with
your PowerBook.
The maximum amount of RAM you can install in your PowerBook is 1 GB, using 512 MB
DIMMs in both the upper and lower RAM slots.
Installing Additional RAM
1
Shut down your computer. Disconnect the power adapter, phone cord, and any other cables
connected to the computer.
2 Flip the computer over and remove the battery.
The battery is removed to prevent you from accidentally turning on the computer while
installing memory.
Battery
Latch
Warning The internal components of your PowerBook may be hot. If you have been
using your PowerBook, wait 30 minutes after shutting down your computer to let the
internal components cool down before continuing.