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X870E Taichi: Fastest DDR5 ECC RAM£

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=107890
Printed Date: 16 Jun 2025 at 3:07pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com


Topic: X870E Taichi: Fastest DDR5 ECC RAM£
Posted By: prak32
Subject: X870E Taichi: Fastest DDR5 ECC RAM£
Date Posted: 10 May 2025 at 8:43am
What is the fastest DDR5 ECC RAM memory supported?
Any issues with 5600 MT/s ?



Replies:
Posted By: eccential
Date Posted: 10 May 2025 at 8:10pm
It depends on the processor you put into it.

Official AMD specs says...
7000-series supports upto 5200MT/s
8000G-series supports upto 5200MT/s(**)
9000-series supports upto 5600MT/s

** ECC only supported on PRO variants on monolithic APU dies.

In reality, I imagine 5600MT/s will work just fine on all of them.
I'm running two sticks of MTC20C2085S1EC56BR on my B850M-X (WiFi) with 9800X3D at stock speed (5600MT/s 46-45-45-90). No problems.

I went with Micron because Crucial used to sell them directly.
The other option was one of these:
https://www.kingston.com/en/memory/server-premier/ddr5-5600mts-ecc-unbuffered-dimm" rel="nofollow - https://www.kingston.com/en/memory/server-premier/ddr5-5600mts-ecc-unbuffered-dimm

I imagine 64GB ECC UDIMMs will be available at some point from these companies. I don't really need it, but it'd be cool to have 128GB with two sticks.

Just make sure to get UNBUFFERED DIMMs.


Posted By: prak32
Date Posted: 10 May 2025 at 11:09pm
I looked at ASRock's workstation motherboard and I see this specified:

Max. DIMM Frequency     5600 MHz (1DPC); 3600 MHz (2DPC)


Posted By: M440
Date Posted: 11 May 2025 at 12:34am
Originally posted by prak32 prak32 wrote:

What is the fastest DDR5 ECC RAM memory supported?
Any issues with 5600 MT/s ?



17:00

looks like they tested it with 6400

https://www.youtube.com/watch?v=OpVgEmm0J2U" rel="nofollow - https://www.youtube.com/watch?v=OpVgEmm0J2U

-------------
asrock b650m-hdv/m.2, ryzen 7700x@85watt, arch/kde



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