Apple iMac G5 (iSight) - Manual (Page 47)

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Installing Memory
This chapter provides information and instructions about
installing memory in your iMac G5.
Your iMac G5 comes with at least 512 megabytes (MB) of Double Data Rate 2 (DDR2)
Synchronous Dynamic Random Access (SDRAM) memory installed. Your iMac G5 has
one memory slot available for expansion.
Installing Additional Memory
You can add memory modules that meet the following specifications:
 DDR2 DRAM
 533 MHz, PC2-4200 compliant (also referred to as DDR2 533)
 Unbuffered and unregistered
You can add a 512 MB, 1 gigabyte (GB), or 2 GB memory module to the open slot in
your iMac G5 for a maximum of 2.5 GB of memory. Use System Profiler to determine
the amount of memory installed in your iMac G5. You can also use System Profiler to
determine if the slot is empty and available for additional memory.
To use System Profiler:
1 Choose Apple () > About This Mac from the menu bar.
2 Click More Info to open System Profiler.
3 Click the disclosure triangle next to Hardware.
4 Click Memory.
Warning: Apple recommends that you have an Apple-certified technician install
memory. Consult the service and support information that came with your iMac G5
for instructions about 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 iMac G5.