iMac 21.5" A1418 Late 2015 Logic Board 2.8 GHz Core i5 16GB Ram || NO - Part Haven
Probably of no use to anyone here, but the 2.8GHz late 2015 iMac logic board requires a different heatsink than the 1.6GHz board because the CPU is in a different location. Ask
iMac 21.5" A1418 Late 2015 Logic Board 2.8 GHz Core i5 16GB Ram || NO - Part Haven