Imac 5.1 white 17" 2.16 ram capacity

I understood it to be 3 gigs, but went ahead an put 4 in as it's so inexpensive and for the potential of any benefit coming from parity....it would appear that the machine does in fact see it all. Activity monitor shows 4 gigs as does system profiler. Perhaps I'm missing something or this is the norm. Any comments?

Hi Angle
Welcome to Apple Discussions
The Late 2006 iMac's will see all 4GB, but I'm betting that even though it's a special order 17" 2.16 GHz it will still only use about 3.3GB of the 4GB installed.
http://support.apple.com/kb/SP28
The Apple Memory Spec's say that you can install 4GB in that model.
http://support.apple.com/kb/HT2821?viewlocale=en_US
On the plus side, you will see better performance installing (matching modules) 4GB than (unmatched) 3GB in that system.
http://guides.macrumors.com/UnderstandingIntel_MacRAM
Dennis

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