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No one has verified ECC setup with AMD desktop parts. e.g. see this thread[1]. People said ASrock supports ECC in all the forums, but even their support denied

No one has verified ECC setup with AMD desktop parts. e.g. see this thread[1]. People said ASrock supports ECC in all the forums, but even their support denied it. While ECC memory would work with most motherboards, no one has any info if ECC is working on them. [1]: https://forum.level1techs.com/t/ecc-capable-verified-motherboards-for-ryzen-7000/197891/14 https://forum.level1techs.com/t/ecc-capable-verified-motherb...

adrian_b 3y ago
Plenty of people including myself have verified that ECC works with the desktop parts where AMD specifies that ECC is supported, like my Ryzen 9 5900X (on an ASUS Pro WS X570-ACE). Your link is only about the current ASRock desktop MBs, not about AM5 MBs in general, not even about ASRock AM5 MBs in general. Previously all ASRock desktop motherboards supported ECC, but their current generation of desktop AM5 motherboards no longer supports ECC. On the other hand, ASRock Rack makes some full-featured server boards with the AM5 socket and ECC support for desktop Ryzen 7000 CPUs, which have a much better performance per dollar than any alternative with CPUs that are sold as "server" CPUs. For normal desktops or workstations, ASUS remains the most accessible choice for motherboards that support ECC. They also have many motherboards that do not support ECC, so the MB specifications must be checked before buying (a good ECC ASUS MB is PRIME X670E-PRO WiFi). While the hardware ECC of Ryzens appears to be OK, their software support is much worse than that of Intel, as unfortunately it is usual for AMD. Their Linux EDAC driver for Ryzen CPUs had not been updated for many years, since the Bulldozer times until about a year ago. A couple of years ago, many features, like testing without having to overclock the memory, by injecting errors, no longer worked, due to mismatch with the hardware. During the last year, the AMD EDAC driver for Ryzen CPUs has been updated multiple times, so perhaps now all its functions work fine, but I have not verified this.
- YetAnotherNick 3y ago
  There is a difference between ECC memory supported and ECC working. Can you share any reason or screenshot to believe that ECC is working.

adrian_b 3y ago

Plenty of people including myself have verified that ECC works with the desktop parts where AMD specifies that ECC is supported, like my Ryzen 9 5900X (on an ASUS Pro WS X570-ACE). Your link is only about the current ASRock desktop MBs, not about AM5 MBs in general, not even about ASRock AM5 MBs in general. Previously all ASRock desktop motherboards supported ECC, but their current generation of desktop AM5 motherboards no longer supports ECC. On the other hand, ASRock Rack makes some full-featured server boards with the AM5 socket and ECC support for desktop Ryzen 7000 CPUs, which have a much better performance per dollar than any alternative with CPUs that are sold as "server" CPUs. For normal desktops or workstations, ASUS remains the most accessible choice for motherboards that support ECC. They also have many motherboards that do not support ECC, so the MB specifications must be checked before buying (a good ECC ASUS MB is PRIME X670E-PRO WiFi). While the hardware ECC of Ryzens appears to be OK, their software support is much worse than that of Intel, as unfortunately it is usual for AMD. Their Linux EDAC driver for Ryzen CPUs had not been updated for many years, since the Bulldozer times until about a year ago. A couple of years ago, many features, like testing without having to overclock the memory, by injecting errors, no longer worked, due to mismatch with the hardware. During the last year, the AMD EDAC driver for Ryzen CPUs has been updated multiple times, so perhaps now all its functions work fine, but I have not verified this.

YetAnotherNick 3y ago
There is a difference between ECC memory supported and ECC working. Can you share any reason or screenshot to believe that ECC is working.