Chosen Solution
I have a computer iMac 20 " 2008 and Core 2 Duo, can I upgrade the processor to the i5 or i7?
Yes you can - provided: Asked [CPU upgrade 2.0GHz to 2.8Ghz ( C2D Extreme X7900 ))|and Answered. If this answer is acceptable please remember to return and mark it.
As far as I know you can’t upgrade the CPU one these models. Even if you could, the i5 uses a different socket type then the Core 2 Duo and therefore would make it impossible. Hope this Helps