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Hello, I need a Logic Board for my iMac 27; it is i5, 27inch Late 2009 A1312,Serial No: W8000222X5RU; EMC No: 2374; but i’m not sure of witch one that will fit to my Mac.(661-5429 or 661-5428) It would be great if you could advise me which Logic Board should I buy! Thanks! Arunas
Aruna, Checking with your serial number your iMac shows to be a 2.8 GHz Core i7 (I7-860) Model No: A1312 (EMC 2374) Intro Date: October 20, 2009 Disc Date: July 27, 2010 In that case the right logic board would be the 661-5428, 2.8GHz Quad Core Intel I7. The 661-5429 is a 2.66GHz Quad Core, Intel I5 board.
