![iMac "Core i5" 2.5 21.5" (Mid-2011) Specs (Mid-2011, MC309LL/A, iMac12,1, A1311, 2428): EveryMac.com iMac "Core i5" 2.5 21.5" (Mid-2011) Specs (Mid-2011, MC309LL/A, iMac12,1, A1311, 2428): EveryMac.com](https://everymac.com/images/cpu_pictures/apple-imac-mid-2010-21.jpg)
iMac "Core i5" 2.5 21.5" (Mid-2011) Specs (Mid-2011, MC309LL/A, iMac12,1, A1311, 2428): EveryMac.com
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Power supply (205W) for Apple Apple iMac 21.5 inch A1311 (Late 2009 – Mid 2011) Part Number : 661-5299 614-0445 OT8043 ADP-200DF, EMC 2308, 2389, 2428, 2496 - WIT Computers
![iMac Intel 21.5" EMC 2428 Logic Board Replacement | Laptop repair, Imac repair, Computer repair services iMac Intel 21.5" EMC 2428 Logic Board Replacement | Laptop repair, Imac repair, Computer repair services](https://i.pinimg.com/originals/25/a3/c2/25a3c2ebf8f2e64b1c717be244ec7338.jpg)
iMac Intel 21.5" EMC 2428 Logic Board Replacement | Laptop repair, Imac repair, Computer repair services
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Original A1311 Motherboard 820-2641-a 820-3126-a 820-2784-a 820-2494-a For Imac 21.5" A1311 Logic Board 2009 2010 2011 Year - Laptop Motherboard - AliExpress
![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 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](https://preview.redd.it/mid-2011-imac-21-5-inch-emc-2428-disassembled-cleaned-v0-3pd5bbebkv7a1.jpg?width=640&crop=smart&auto=webp&s=404fec12e6880b07e1feeabe1471ebd10b514efb)
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
![Original Tested A1311 Motherboard 820-2641-a 820-3126-a For Imac 21.5'' Logic Board 639-2347 639-2348 Mid 2011 Year - Laptop Motherboard - AliExpress Original Tested A1311 Motherboard 820-2641-a 820-3126-a For Imac 21.5'' Logic Board 639-2347 639-2348 Mid 2011 Year - Laptop Motherboard - AliExpress](https://ae01.alicdn.com/kf/S2179e2beb31848978184e8d1bc7eea4fs.jpg?width=900&height=900&hash=1800)