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4 Enhancing Your Computer
This chapter provides information and instructions for
enhancing your computer.
Instructions are provided for the following procedures:
• “Installing Additional Memory” on page 41
• “Installing an AirPort Extreme Card” on page 47
• “Replacing the Internal Backup Battery” on page 51
Installing Additional Memory
Your iMac G5 comes with at least 256 megabytes (MB) of Double Data Rate
Synchronous Dynamic Random Access (DDR-SDRAM) memory. Your iMac G5 has two
memory slots, one of which is usually available for expansion. Your iMac G5 is
compatible with memory modules that meet the following specifications:
• PC-3200 compliant (also referred to as DDR-400)
• Double Data Rate Synchronous Dynamic Random Access Memory (DDR-SDRAM)
• 2.5 volt (V)
• Unbuffered and unregistered
The maximum amount of memory you can have in your iMac G5 is 2 gigabytes (GB),
using two 1 GB memory modules in each slot. Use System Profiler to determine the
amount of memory installed in your iMac G5. To access System Profiler, choose
Apple (K) > About This Mac from the menu bar and then click More Info.
Warning: If you attempt to install memory and damage your equipment, such
damage is not covered by the limited warranty on your computer.