オリジナル投稿者： Dan ,
If its EFI locked you should return it to the seller and get your money back as it came from a stolen iMac! Are you sure the main logic board is bad? Maybe it's only the graphics card which you could swap out with the other board to at least test. If it is then you could return the board and just get a replacement GPU card. That would be cheaper and you would be doing the right thing here not rewarding a chop shop that handles stolen systems.