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Can I use a single ECC 128GB Ram Stick in my Mac Pro 2019?

I want to upgrade the RAM of my 2019 Mac Pro. Can I get a single 128GB Ram Stick or does it need to have multiple ones.

Mac Pro

Posted on May 27, 2020 10:00 AM

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Using Multiple modules has generally resulted in faster memory performance, because the modules would automatically interleave in some fashion. They would either by buddy-up wider or by every-other fetch comes from every-other module.


The documentation for replacing memory implies single module will work, but is only appropriate for debugging purposes.

Posted on May 27, 2020 11:48 AM

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May 27, 2020 11:48 AM in response to DavidDyz

Using Multiple modules has generally resulted in faster memory performance, because the modules would automatically interleave in some fashion. They would either by buddy-up wider or by every-other fetch comes from every-other module.


The documentation for replacing memory implies single module will work, but is only appropriate for debugging purposes.

Can I use a single ECC 128GB Ram Stick in my Mac Pro 2019?

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