Chosen Solution

Hi just been given an imac 27 inch it has no processor I know these models shipped with i5 or i7 cpus. Just wondering if I could put an i3 into it. I just want to use as a second display. If so which model i3. Many thanks

This series used either Intel Core i5 (2500S, 2400) or Core i7 (2600) Sandy Bridge. I would stick with one of these.