Upgrading 20″ iMac to 27″ Upgrading faulty 20″ PPC to 27″ iMac dual core, data transfer. cw_applemacman2010-08-21T11:43:07+00:00August 21st, 2010| Share This Story, Choose Your Platform! FacebookTwitterLinkedInRedditTumblrPinterestVkEmail Related Posts