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Also, I recall when, before the 9400M Minis, one could upgrade the C2D processor in it, to something with a bit more power, and with the Mac Pros, they can get upgraded, so it must be something else.
All GMA950 minis could be upgraded but the fastest processor available is a 2.33GHz C2D (T7600) which goes for over $200 on ebay. All the CDs/C2Ds look the same to the firmware.
 
a lot of motherboard(in pc -world a logic board is called motherboard) manufacturers limit the upgrade ability of their boards with faster processors through the bios so you are forced to buy a better board

so as apple still is a computer manufacturer who wants to sell their products ,
it makes only sense to force people that way to buy a 27"i7 ,instead of allowing them to buy a quadcore processor for their older iMac 24"

apple did this practice always begining with the first imacs , they could if they had wanted to offer a g4 option for the iMac g3 , so for the g4 imac they could have offered a upgrade option to g5

but they do want to sell their latest products , and they dont like it when you just upgrade your old hardware , as they cant make profit that way or? even apple does need to make profit , some might think apple is a non profit charity but thats a myth
 
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