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I have a question, I am putting together an iMac late 2013 by parts, I would like to know if just putting the name of the part of the iMac and then putting “A1418” would be all compatible for example I have this board and this Power, I really don’t know if they are compatible even though they say they are “A1418” I am buying them on Ebay 185W Power Supply Board ADP-185BF T For Apple iMac 21.5Inch A1418 Apple iMac Late 2013 21.5 “2.7 i5-4570R Iris A1418 Logic Board 820-3588-A I would like you to give me some kind of advice if I am doing it wrong