Chosen Solution
I was upgrade the CPU of my new iMac from i5 to i7-7700K and I damaged the Logical Board, so now I need to buy a new one. Here in Brazil is very expensive to buy from Apple, I’ll be on USA this month November, 2017 and I’d like to buy the board there, but I won’t be able to bring my iMac with me to USA and I need to know where can I find this specific board to buy. If someone could help me, I would appreciate it if someone could help me.
Sadly, this is such a new system you may have a hard time getting one in your window of being here. This is the only source I know of that even lists them: TheBook Yard
@rchiste like everybody else already mentioned, this model is to new to find a new logicboard just yet. I would suggest that you either let us look at the damages by posting some images of it with your question. Use this guide Adding images to an existing question for that. Maybe guru’s like @reecee or @tcrs_circuit can help you to either repair it or can suggest how/where to repair it.
