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This chapter describes the expansion features of the PowerBook G4 17-inch computer’s RAM expansion slots
and the CardBus slot.
RAM Expansion Slots
The computer has two RAM expansion slots that accommodate standard SO (small outline) DIMMs using
DDR SDRAM devices. One slot may is occupied by factory-installed SO-DIMM. The slots are accessible for user
installation of an additional SO-DIMM.
The SO-DIMMs must use DDR SDRAM devices. If the user installs an SO-DIMM that uses Single Data Rate
(SDR) devices, the boot process will fail when the user attempts to restart the computer and the computer
will not operate.
The address logic for the RAM slots supports up to 1 GB total RAM. Using the highest-density devices currently
available, an SO-DIMM can contain up to 512 MB of RAM, so the two RAM expansion slots can accommodate
up to 1 GB total RAM.
Accessing the RAM Slots
The user can access the RAM expansion slots byremoving thememory slot cover on the back of thecomputer,
as shown in Figure 4-1 (page 53). For complete instructions on accessing and replacing the RAM memory,
refer to the PowerBook G4 17-inch Getting Started guide that came with the computer.
Figure 4-1 Removing RAM expansion slot cover
RAM Expansion Slots 53
Legacy Document | 2003-03-01 | © 2003 Apple Computer, Inc. All Rights Reserved.
CHAPTER 4
Expansion Features