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barrie133 Author

Level 1

4 points

can I install 2 new 16gb chips alongside existing 4gb chips in 27 inch iMac?

can I install 2 new 16gb chips alongside existing 4gb chips in 27 inch iMac?

iMac 27″ 5K, macOS 13.2

Posted on Mar 8, 2023 3:12 AM

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3 replies

Level 9

77,230 points

Mar 8, 2023 4:34 AM in response to barrie133

Yes, just keep in mind that Mac are very picky and it will not be happy using PC variants that have similar spec's.

If you are in the USA I suggest purchasing RAM from either OWC or Crucial.

https://eshop.macsales.com/shop/apple/memory/iMac

https://www.crucial.com/upgrades/apple

If you are outside of the USA I suggests using OWC's world wide partners.

https://www.owc.com/partners/where-to-buy/

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Mar 8, 2023 5:06 AM in response to barrie133

Yes. I did this with my 2020 Core i7 27-inch iMac for a total of 40 GB. The Core i7 equipped iMac has a special requirement for how the RAM slots are populated.

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Level 10

122,555 points

Mar 8, 2023 3:15 AM in response to barrie133

Yes.

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can I install 2 new 16gb chips alongside existing 4gb chips in 27 inch iMac?

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