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I'm looking for a m-iitx motherboard that supports registered ecc memory on the ryzen chipset.

Does it exist?

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TL;DR: Every AM4 ITX board (so far) supports ECC but not RDIMMs

Registered DIMMs won't work on Ryzen, plain and simple. Ryzen isn't validated for ECC support on consumer chipsets and, as a result, AMD doesn't officially support it. ECC support is however enabled, and certain motherboard manufactures do validate ECC memory.

Here's a list of AM4 ITX boards that have been validated with ECC memory:

Note that so far this is every AM4 ITX motherboard out there, and I'd expect this trend to continue, so any board here is likely to work.

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  • I appreciate it man, my main concern is with rdimm memory though. Udimms are often interchangeable with regular dimms, Rdimm is often where compatibility issues arise. Unless I have big misunderstanding of it. – Nicholas Martin Jan 5 '18 at 4:18
  • RDIMMs flat out won't work :/ Compatibility once you start getting into more "server grade" gear basically just becomes a bit of a bear, but most any ECC UDIMM will probably work. What do you need registered memory for in a desktop though? ECC I can understand, but typically, registered memory is only important in ultra-high memory count applications. – JMY1000 Jan 5 '18 at 4:44
  • Honestly I don't need it for anything in particular, It's more of a fun idea to mess with since I can get server grade parts through work for practically free. – Nicholas Martin Jan 5 '18 at 4:52
  • Ooooo, I like server grade parts! What about using server grade motherboard? Also, are you familiar with the homelab community? – JMY1000 Jan 5 '18 at 4:54
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    I think there might still be hope, with the growing popularity of daughterboards and sff pcs. You never know. Definitely gonna check out that reddit! Thanks man! – Nicholas Martin Jan 5 '18 at 5:32

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