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Model A1419 / EMC 2806 / Late 2014 or Mid 2015. 3.3 or 3.5 GHz Core i5 or 4.0 GHz Core i7 (ID iMac15,1); EMC 2834 late 2015 / 3.3 or 3.5 GHz Core i5 or 4.0 GHz Core i7 (iMac17,1) All with Retina 5K displays

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iMac 27 late 2015 CPU upgrade with i7-6700?

I know you can upgrade the late 2015 iMac 27 with the i7-6700K. But I can get a i7-6700 for much cheaper that the i7-6700K.

Has anyone tried it?

Thanks

p.s. I know the iMac is difficult to open. Already did it many times before.

Answer this question I have this problem too

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Did you find any solution for this? I’m also looking to a 6700.

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@kim_sv yes, it’s working - tried it today

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If you already went through the very stressful process of opening and disassembling the unit the CPU replacement shouldn't be a problem. I did it myself though I've used the 6700K - can't see why the 6700 wouldn't work after al my unit had the 6600 (not the unlocked K).

One thing though: the spring that holds the heatsink in place can be a very difficult thing to put back and maybe even damage your CPU - ANY CPU if you're not careful enough.

I recommend ‘flatten’ it a bit using a plier or whatever you can. It should still work as to hold the heatsink in place but if it is too strong that you have to push down very hard (and I am quite a strong person…) you should definitely ‘flatten’ it or you WILL damage you CPU. Check the CPU replacement guide and read the comments on step 62 - you'll see I'm not the only one who had a problem with that:

iMac Intel 27" Retina 5K Display CPU Replacement

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Tried it, it’s working and running @3,4ghz

Update (21.09.2021)

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see attached picture for proof :)

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mollocampo will be eternally grateful.
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