
21.5 iMac Mid 2011 12,1 A1311 820-3126 Logic Board Core I5 "CPU Not Included"
Description Specifications Compatibility Replacement Logic Board for the Mid 2011 21.5" iMac. This part was used in all Configurations of the Mid 2011 Model. No CPU is included with this Board. Please note there was an educational model released in Late 2011 with a core i3 CPU which cannot use this board. Compatibility 21.5" Apple iMac Aluminum (Thick Edge) Mid 2011 Identifiers iMac 12,1 A1311 - 2428 Mid 2011 Model Numbers MC309LL/A MC812LL/A Specs Supported Processors 2.5GHz quad-core Intel Core i5-2400s with 6MB on-chip L3 cache 2.7GHz quad-core Intel Core i5-2500s with 6MB on-chip L3 cache 2.8GHz quad-core Intel Core i7-2600s with 8MB on-chip L3 cache Memory Slots Available Four (4) Speed 1333MHz DDR3 memory Max of 4GB per Slot (total supported ram 16GB) Graphics AMD Radeon HD 6750M graphics processor with 512MB of GDDR5 memory (not included) AMD Radeon HD 6770M graphics processor with 512MB of GDDR5 memory (not included) Vi