My Favorite Guides
iMac Intel 27" EMC 2309 and 2374 Teardown
Quote from TakkU:
No. This iMac uses a different socket than the i5 or i7. If you want a quadcore iMac, just buy one ;)
There are quad core chips out there that are not i5s or i7s. I am just as curious what is the socket type, if it is a LGA 755 type I could see the potential to put in a Q9550S.