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2017年6月8日に発売。A1418 / EMC 3069 / 2017 / 3.0 GHz quad-core i5, 3.4 GHz quad-core i5 or 3.6 GHz quad-core i7 Processor.

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Can I upgrade CPU to I7 7700K?

I have a 21.5 inch iMac (2017) with i5 processor, and I would like to upgrade the processor to a i7 7700K,

Is this CPU (i7 7700K) compatible with this iMac (2017, 21.5") ?

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Yes! You can replace the CPU in this system. Here's the IFIXIT guide: iMac Intel 21.5" Retina 4K Display (2017) CPU Replacement.

As to what CPU you can use Apple only used an Intel i7-7700 as the highest in this series so its hard to say if a i7-7700k will work or not.

Even if it does the power load & heat maybe to great depending on what you are doing on the system (heavy intensive processing)

The last issue here is this is such a new system you'll void your warranty and this is still a hard system to open as you need to carefully remove the display which is glued on. Many people have damaged it in the process if you don't follow the guides to the letter and use the correct tools.

Are you sure you want to risk it?

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yes you can add i7 7700K on the Mac and its very easy

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In the comments of the link from the OP above, it is specifically stated the 7700K version does NOT work (while 7700 does), just to be clear.

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It's not possible to upgrade or replace the processor (cpu) or the graphics controller (gpu) in an iMac. You can add more memory (RAM) up to the limit of your particular model, and you can replace the hard drive with a larger capacity drive.

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Sorry, Felix this is inaccurate. The graphics is not upgradable but the CPU is.

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Dan’s answer is correct you can upgrade the CPU chip!

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Depending on the 2017 iMac configuration you start off with you may be able to upgrade the Intel CPU, SATA HDD, Blade SSD and the DDR4 memory modules. If your 2017 iMac has a fusion drive in it, then it has an Apple SSD controller. You can either source a genuine Apple blade SSD from somewhere or obtain a third party blade ssd that uses the same interface. Alternatively you can source an adapter to use NVME M2 modules. The highest compatible Intel CPU that will fit the socket may work but not be appropriate for the upgrade. Best to fit it with one of the CPUs that came as an option for that model as there could be multiple issues that arise in the short term and later on. SATA HDD and memory upgrades are fairly straight forward. Apple listed the maximum memory upgrade as 32GB for my model however it is definitely upgradeable to 64GB. The CPU is one of the things you need to check for maximum memory support.

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Tom Cohen さん、ありがとうございました!
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