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Model A1419 / Late 2012 / 2.9 & 3.2 GHz Core i5 or 3.4 GHz Core i7 Processor, ID iMac13,2

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iMac 27 late 2013 logic board in the late 2012 chasis

I have probably a bad logic board on my iMac late 2012.

Instead of buying a similar logic board, I have the thought of upgrading with a used full spec late 2013 logic board and put it in the late 2012 chassis.

  • Is it possible at all?
  • Has anyone tried this before?

Thanks in advance.

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Just wanna Update that it is possible to swappe the whole imac component in the 2013 model into the 2012 chassis. And I did it without trouble. There is just some slight difference with some of the screws, so you just have to use the screws from the chassis you wanna swappe to Then there Will be No problem at All.

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Also note that the SSD card in the 2012 motherboard is not compatible with the 2013 motherboard.

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Did you review the two IFIXIT guides?

From the surface the guides do appear to show the exact same layout of the logic board and the connections to it. If you compare the power supply and the display you’ll also see these parts are also interchangeable between the two series.

While I haven’t swapped out logic boards my self I think its a safe bet it would work.

But before you head down that path why don’t you tell us why you think the logic board is gone and tell us what the onboard diagnostic LED’s are telling you. Maybe we can pull a rabbit out of the hat here (it would be cheaper!)

Imagem de iMac Intel 27" EMC 2546 Logic Board

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iMac Intel 27" EMC 2546 Logic Board Replacement

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Imagem de iMac Intel 27" EMC 2639 Logic Board

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iMac Intel 27" EMC 2639 Logic Board Replacement

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Thanks Dan

I tried a blade ssd upgrade, but after the reassembly the iMac does not respond at all. The LED #1 has light, but when I do push the power button, there were no reaction or light on the others 3 led light on the logic board. While my original plans were to swap the blade ssd only, I was tempted to put new thermal paste on the cpu and gpu. I believe it's in this step that I screw up the logic board, as I was very careful on the other steps. The only means I have to know which is causing the failure, is to take it to a repair center for a diagnostic and a little fee of 40 dollars. Meanwhile I do research on the cost of spar parts and if it is cost effective to repair it.

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Well I need assistance. As I have a late 2013 27” iMac. I was told that my sensor that controls my fan probably is gone and a logic board it needed. I want to know what all newer boards can I interchange with. Might as well upgrade if am going through all that work. I’ve changed 3 fans in my system and none same to turn on. I did a hardware test and it’s telling me my fan isn’t working, when I do the extended test, the computer eventually just shuts down. Any ideas on my next step.

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Did you ever resolve this question? I'm in the same boat and need a new logic board. It never occurred to me that I could use a newer board!

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No I wasn't able to solve this issue. Have you and if you have already can you explain how it was done. Thanks

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I asked in this thread, if it is possible to replace a logicboard from 2012 into 2013 imac and the answer is yes it is possible. My iMac from 2012 is now runner a 2013 max out logicboard and still kicking ass. With more help from the community I have discovered the problem with my faulty logic board from 2012 and was succesfull in fixing the problem with the fan spinning and cpu at 100%. (see the linked thread). If you need specific help. I think it best to make a separate thread with picture and information of what you have done so far. Something is blown, I need help to identify component on logic board

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