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I have one of these ASRock Rack servers, and I can confirm ECC works on it - I have 128GB of ECC DDR5 with a Ryzen 9 7900. I wish more motherboards bothered to

I have one of these ASRock Rack servers, and I can confirm ECC works on it - I have 128GB of ECC DDR5 with a Ryzen 9 7900. I wish more motherboards bothered to validate ECC working - it's a nice benefit in an affordable platform.

mwpmaybe 3y ago
> I can confirm ECC works on it "It works" as in it boots, or "it works" as in it checks and reports single-bit errors and reports double-bit errors? What OS? If Linux, are you using rasdaemon? Does it confirm that the appropriate EDAC drivers are loaded and working? Or is that data only available in the BMC's event log?
- fourfour3 3y ago
  Fault injection has been used successfully and people have introduced manual errors that do get flagged - eg https://forum.asrock.com/forum_posts.asp?TID=24901&PID=103658&title=am5-ecc-supportpound#103658 https://forum.asrock.com/forum_posts.asp?TID=24901&PID=10365... For Linux support you need a very recent kernel - I forget how recent, but some reporting on it: https://www.phoronix.com/news/AMD-EDAC-Ryzen-7000-Series https://www.phoronix.com/news/AMD-EDAC-Ryzen-7000-Series
- 486sx33 3y ago
  Running azrock mb with a ryzen 9 3900x and Samsung b die ram… it’s pile of crap compared to asus mobo with the same plugins… ecc, I don’t know… what’s a proper ecc test today and is it worth sacrificing 12% in performance?
  - mrob 3y ago
    I tested that ECC was working on my Zen 3 + ASRock B550 setup by gradually undervolting the RAM more and more, and running Memtester[0] each time until Linux reported corrected errors. [0] https://pyropus.ca./software/memtester/ https://pyropus.ca./software/memtester/
jurgenkesker 3y ago
Normal Asrock Ryzen 5xxx motherboards also supported ECC, I used ECC RAM for my homesever with a normal 5900X and a Asrock B650M Pro4 motherboard. The new Asrock Ryzen 7xxx motherboards unfortunately don't have that same ECC support.

mwpmaybe 3y ago

> I can confirm ECC works on it "It works" as in it boots, or "it works" as in it checks and reports single-bit errors and reports double-bit errors? What OS? If Linux, are you using rasdaemon? Does it confirm that the appropriate EDAC drivers are loaded and working? Or is that data only available in the BMC's event log?

fourfour3 3y ago
Fault injection has been used successfully and people have introduced manual errors that do get flagged - eg https://forum.asrock.com/forum_posts.asp?TID=24901&PID=103658&title=am5-ecc-supportpound#103658 https://forum.asrock.com/forum_posts.asp?TID=24901&PID=10365... For Linux support you need a very recent kernel - I forget how recent, but some reporting on it: https://www.phoronix.com/news/AMD-EDAC-Ryzen-7000-Series https://www.phoronix.com/news/AMD-EDAC-Ryzen-7000-Series
486sx33 3y ago
Running azrock mb with a ryzen 9 3900x and Samsung b die ram… it’s pile of crap compared to asus mobo with the same plugins… ecc, I don’t know… what’s a proper ecc test today and is it worth sacrificing 12% in performance?
- mrob 3y ago
  I tested that ECC was working on my Zen 3 + ASRock B550 setup by gradually undervolting the RAM more and more, and running Memtester[0] each time until Linux reported corrected errors. [0] https://pyropus.ca./software/memtester/ https://pyropus.ca./software/memtester/

jurgenkesker 3y ago

Normal Asrock Ryzen 5xxx motherboards also supported ECC, I used ECC RAM for my homesever with a normal 5900X and a Asrock B650M Pro4 motherboard. The new Asrock Ryzen 7xxx motherboards unfortunately don't have that same ECC support.