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The iMac Pro, is Apple’s most powerful iMac to date. It comes with either a 3.2 GHz 8 core, 3.0 GHz 10 core, 2.5 GHz 14 core or 2.3 GHz 18 core Xeon W processor. EMC 3144 / A1862 (ID iMacPro1,1)

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ram upgrade? iMac pro

Hi

I know iMac pro got 2666mhz ram but I wonder if 2133mhz will work?

this for example:

https://www.ebay.com/itm/4x-For-Samsung-...

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Don’t screw around with this expensive of a machine. Use what it calls for!

RAM Type:DDR4 ECC SDRAM*Min. RAM Speed:2666 MHz

Details:Uses "2666 MHz DDR4 ECC memory" (PC4-21300) modules.

Here how to do it:

https://everymac.com/systems/apple/imac-...

It’s not easy to do and you probably don’t want to do it twice in case your RAM does not want to work.

Here’s the installation video:

https://everymac.com/systems/apple/imac-...

Here’s the correct RAM, you can shop for better prices:

https://eshop.macsales.com/upgrades/appl...

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Any old 288-pin DDR4 ECC DIMMs will work in the iMac Pro.

Non-ECC DIMMs should also work, be cheaper, and potentially also be faster, but you forfeit any benefits of error-correction if you mix the two.

Additionally, without testing, there is no way to tell whether or not Apple has built the iMac Pro to only accept ECC RAM.

Here is the teardown guide for the iMac Pro (Step seven is where they discuss RAM): iMac Pro Teardown

Also, here's a good article about ECC vs. non-ECC RAM from Tom's Hardware: https://www.tomshardware.com/reviews/ecc...

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Using the wrong RAM in this system really looses the reason you bought it! Stick with the correct RAM and as its such a hard system to get to the RAM is another good reason not to skimp!

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