IMac 3.06GHz Intel Core 2 Duo (24-inch) - 2 or 4 slots ?

Hi,
Crucial's memory selector tells me that I can install a maximum of 4GB of memory on my iMac 3.06GHz Intel Core 2 Duo (24-inch). Why does the system info show me that I have 4 slots with 2 being empty (see picture below) ?
Regards.

Hi,
I found the reason why System Info is displaying 4 slots ... it's because I have 4 slots.
I have a 21,5" monitor not a 24". It is identified as an iMac10,1 model and the good news is that I can upgrade to 16Gb of memory.
That being said, I would like to upgrade, because I often find that my computer is slow. If I go to the Activity Monitor utility, iI think that my memory requires an upgrade but how much more should I put in ? See the memory display below.
Also can someone tell me if I could experience a faster computer if my processor is not used intensively, like shown below.
Regards.
!http://gallery.me.com/robertlesperance/100224/Memory/web.jpg?ver=12962321970001 !
!http://gallery.me.com/robertlesperance/100224/Processor/web.jpg?ver=12962321960 001!

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Message was edited by: Joe805

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IMac 3.06GHz Intel Core 2 Duo (24-inch) - 2 or 4 slots ?

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