Mid 2011 imac 21.5 inch EMC 2428. Disassembled, cleaned, repasted like normal but now only indicator 1 and 2 on and there's the startup chime. Read description/comment please : r/mac
Apple iMac A1311 21.5 inch Desktop - EMC 2428 - A1311 - Mid 2011 | eBay
iMac 21.5″ Late 2009 to Mid 2011 – Apple Rescue of Denver
Apple iMac A1311 Emc-2428 21.5 Inch All In One Desktop Pc Auction (0047-5044824) | Grays Australia