Model A1419 / EMC 2806 & EMC 2834/ Late 2014 or Early 2015 or late 2015 / 3.3 or 3.5 GHz Core i5 or 4.0 GHz Core i7 Processor / Retina 5K display

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5k iMac 2015 late cpu replacement test

I have an imac 27" 2015 late model. I'm going to experiment with upgrading to Kaby lake 7700k cpu. I will share the results soon. Good luck to me.

Answered! View the answer I have this problem too

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Black Friday
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I gave it a try! I installed 7700k CPU in my iMac today. It did not recognize it.

I lost money and time, as I was curious if it would work. Sadly no soap.

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I've just swapped my i5-6500 for a i7700 and I get nothing!

No power to the screen, I do get power to the logic board, USB ports and fan.

So I guess its not accepting the chip.

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While these chips are very similar (review the specs sheets below) I don't think it will work as the systems EFI likely won't recognize the chips Device ID code.

If it does work you'll need to run some benchmarks to see if you gained any real performance.

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Please let us know your results as others will surely be asking about this.

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@mayer - HD K gave it a try it's a no go ;-{ The systems EFI won't recognize the chip (device ID code).

Otherwise the two chips are pin compatible (same socket). The TPI & power requirements are also the same so it should work from the specs.

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https://youtu.be/E-hF1d7vbfM

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27" 2017 Retina 5K iMac - i5 7600k to a i7 7700k

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@feel - You need to make sure you review the OP's question and system. This is not useful in this Q.

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HD K will be eternally grateful.
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