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A2115 / 2019 / Prozessoren vom 3,0 GHz 6-core i5 bis zum 3,6 GHz 8-core i9. Kam am 19. März 2019 auf den Markt.

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iMac 2019 3.0 GHz - To much ram?

Sorry I know this might be a stupid question, but now I will go for it :)

I have the new iMac 2019 3,0 GHz, and it is maxed with ram 32 GB…….what will happen if I despite all warnings from Apple upgrades to 64gb ram - would it work, or will I just kill my Mac?

I've read that there is a ram making company that can make it work, but I don't know if it's fake news.

Thanks for the reply, and once again I apologize for the silly question

Beantwortet! Antwort anzeigen Ich habe das gleiche Problem

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To start with you are aware your system can support upto 64 GB of RAM! As you can see here Apple T/N iMac memory specifications

Why do you think you need this much RAM? Not many apps are even able to access this much! I know of only two presently and they are both in Beta! Video editing and rendering is about the few uses most people will need this much.

This is a complex issue! As you have the physical limits of the RAM SO-DIMMs as well as the ability of the system to address all of the lines. This gets into the wiring of the socket as well as the logics ability to recognize all of the signals at the physical level and then the OS and the apps you are using would need to able able to leverage all of the RAM space.

Using multiple apps concurrently is presently the only way you could do this if the OS is able to recognize the RAM.

Frankly, I would leave your RAM alone here and make the effort to upgrade your PCIe/NVMe SSD to a larger one! I’ve been putting in 2 TB drives in for music and video artists and others working in the arts. I only go with the custom Apple Samsung SSPOLARIS drives. Setting it up with the OS and Apps and leaving the rest of the drive free!

Given how new your system is I would go with this other option, setting up an external RAID’d SSD drive like OWC Express 4M2. Or these newer units: OWC Envoy Pro EX or OWC ThunderBlade that way you don’t risk your warranty as well as the risk of damaging something in the process as opening the newer ‘Thin Series’ is not easy and you could damage the display if you don’t use the correct tools and technique!

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per Apple Technical Specification, your iMac 2019 3.0Ghz is configurable to 32GB MAX


Did you try 64GB?

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@ant3 This is a bit confusing! Apple sells systems in set configs 16 or 32 GB of RAM. But! Thats not the systems limit!

The systems limit is 64 GB (4 x 16GB DIMMs) as seen here in this Apple RAM guide for this system


thanks for clarifying,

I just bought a BTO iMac 27 i5/3.0 6C 8GB 512GB 570X and wrongly assumed that the limits for CPU,MEM, STORAGE and Graphics were specified on the Technical Specification. Can I assume CPU,MEM,STORAGE and Graphics are all upgradable in this system to a MAX condition of

3.6Ghz 8-core Intel Core i9 CPU



Radeon Pro Vega 48 with 8GB of HBM2 memory


@ant3 - Sadly, you can only upgrade the RAM and drive storage NVMe/PCIe blade as well as the 3.5" SATA drive.

While it's possible to upgrade the CPU to a i7 the i9 does use a different logic board and people have had issues upgrading to an i9, it's also very hard to do! Quite a few people have damaged their logic boards and/or the CPU chip. I would advise you don't upgrade it.

Besides, I think you'll find getting a larger blade SSD will get you much more bang for the buck!

If you just got it does it make sense returning it and getting a different model which has the better GPU and the i9 CPU. Then get the least RAM (upgrading it your self) as well as the largest blade SSD so you then don't need to pull the logic board, adding your own SATA HDD.


Well, I just returned a iMac 27 2020 i5/3.1 6C 8GB 256GB 5300

because I later learned that the 256GB SSD cannot be upgraded .

I also found that when connecting the iMac mid 2011 to the 2020 iMac,

Target Display Mode is NOT supported.

I confirmed the mid-2011 iMac when connected to 2019 iMac works in Target Display Mode.

I am trying to plan ahead and be aware of the upgrade path, as these iMacs will last many years. The mid-2011 is still working 9 years and running, although I have made a number of upgrades.


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kidletter wird auf ewig dankbar sein.
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