AMD ECC not enabled but says it is

By: Gabriele Svelto (gabriele.svelto.delete@this.gmail.com), January 3, 2021 1:08 pm
Room: Moderated Discussions
Adrian (a.delete@this.acm.org) on January 3, 2021 12:50 pm wrote:
> After seeing during the years countless BIOS bugs on various motherboards,
> I have no doubt that some MBs for AMD may have buggy ECC support.

I've seen BIOS bugs in server boards too. The manufacturers I checked (ASUS, ASRock and Gigabyte) seem pretty transparent about their support for ECC in AM4 motherboards. The specs clearly state when they support it and when they don't, and which processors are required. If they really didn't care they wouldn't even mention it in specs, let alone mention that ECC sticks will work but w/o ECC functionality on some of their boards.

> On Linux, there was the kernel option CONFIG_EDAC_AMD64_ERROR_INJECTION, which would
> allow access to the testing features of the memory controller on older AMD CPUs.
>
> I have not attempted to use this with any Ryzen, so I do not know if this still works. In the case when it was
> kept up-to-date, testing on Linux would be even easier, without having to fiddle with the BIOS settings.

I haven't tried it either but now I'm curious too. Either way on consumer motherboards you can also just overclock the memory. It will start throwing errors eventually, and they're going to be real ones.
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                    Ryzen 9 5000 series processor Gabriele Svelto2021/01/01 07:10 AM
                      Ryzen 9 5000 series processor David Hess2021/01/01 07:37 AM
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                                  Threadrippers do have official ECC supportJukka Larja2021/01/03 08:32 PM
                                    Threadrippers do have official ECC supportBjörn Ragnar Björnsson2021/01/04 08:21 AM
                                ECC (or lack of)Tim McCaffrey2021/01/03 09:28 AM
                                  ECC (or lack of)Adrian2021/01/03 01:14 PM
                                    ECC (or lack of)Yuhong Bao2021/01/03 01:51 PM
                                      ECC (or lack of)Yuhong Bao2021/01/04 06:54 PM
                                        ECC (or lack of)Yuhong Bao2021/01/04 07:04 PM
                                AMD ECC not enabled but says it isIan Cutress2021/01/03 11:09 AM
                                  AMD ECC not enabled but says it isMaxwell2021/01/03 12:28 PM
                                  AMD ECC not enabled but says it isAdrian2021/01/03 12:50 PM
                                    AMD ECC not enabled but says it isGabriele Svelto2021/01/03 01:08 PM
                                      AMD ECC not enabled but says it isAdrian2021/01/03 01:34 PM
                                        AMD ECC not enabled but says it isDan Strother2021/01/03 07:00 PM
                                          AMD ECC not enabled but says it isMatt2021/01/04 12:29 AM
                                          AMD ECC not enabled but says it isGabriele Svelto2021/01/04 01:29 AM
                                            AMD ECC not enabled but says it isMatt2021/01/04 12:39 PM
                                          AMD ECC not enabled but says it isAdrian2021/01/04 05:49 AM
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                                              Ryzen 9 5000 series processor Björn Ragnar Björnsson2021/01/07 08:26 PM
                                                Ryzen 9 5000 series processor Michael S2021/01/08 02:49 AM
                                    Ryzen 9 5000 series processor Jason Snyder2021/01/14 07:32 AM
                                      Ryzen 9 5000 series processor Gabriele Svelto2021/01/15 05:26 AM
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                                    Ryzen 9 5000 series processor Jörn Engel2021/01/07 04:29 PM
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                                          Ryzen 9 5000 series processor Adrian2021/01/11 05:25 AM
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                        Ryzen 9 5000 series processor Adrian2021/01/01 01:28 PM
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                            Ryzen 9 5000 series processor vs. M1Dummond D. Slow2021/01/02 12:50 PM
                              Ryzen 9 5000 series processor vs. M1Adrian2021/01/02 02:00 PM
                                Ryzen 9 5000 series processor vs. M1Dummond D. Slow2021/01/04 12:11 PM
                            Ryzen 9 5000 series processor vs. M1Dummond D. Slow2021/01/07 10:43 AM
                              Ryzen 9 5000 series processor vs. M1Adrian2021/01/08 08:28 AM
                                Ryzen 9 5000 series processor vs. M1 Sorry, typo, correction hereAdrian2021/01/08 08:31 AM
                                  Ryzen 9 5000 series processor vs. M1 (vs. Rocket Lake)Dummond D. Slow2021/01/22 07:02 AM
                            isn't that an interesting contradiction?hobold2021/01/08 12:44 PM
                              isn't that an interesting contradiction?Maynard Handley2021/01/08 01:27 PM
                              isn't that an interesting contradiction?Adrian2021/01/08 02:21 PM
                                isn't that an interesting contradiction?Maynard Handley2021/01/08 03:59 PM
                                  isn't that an interesting contradiction?Maynard Handley2021/01/08 04:34 PM
                                    isn't that an interesting contradiction?Maynard Handley2021/01/08 04:34 PM
                                    isn't that an interesting contradiction?Maynard Handley2021/01/08 04:35 PM
                                      isn't that an interesting contradiction?Adrian2021/01/09 12:55 AM
                                  isn't that an interesting contradiction?Adrian2021/01/09 12:48 AM
                                    isn't that an interesting contradiction? - gmpAdrian2021/01/09 08:00 AM
                                      isn't that an interesting contradiction? - gmpnone2021/01/11 01:26 AM
                                        isn't that an interesting contradiction? - gmpAdrian2021/01/11 04:34 AM
                                          Fully agree with you, I was just giving some data :-) (NT)none2021/01/11 05:17 AM
                                          isn't that an interesting contradiction? - gmpanon2021/01/11 12:09 PM
                                            isn't that an interesting contradiction? - gmpAdrian2021/01/12 12:54 AM
                                              isn't that an interesting contradiction? - gmpnone2021/01/12 01:15 AM
                                                isn't that an interesting contradiction? - gmpAdrian2021/01/12 03:37 AM
                                                  isn't that an interesting contradiction? - gmpnone2021/01/12 03:53 AM
                                                    uses of int multiplyhobold2021/01/12 02:51 PM
                                                      uses of int multiplynone2021/01/13 01:11 AM
                                                      uses of int multiplyJörn Engel2021/01/13 12:06 PM
                                                  isn't that an interesting contradiction? - gmpWilco2021/01/12 04:17 AM
                                                    isn't that an interesting contradiction? - gmpAdrian2021/01/12 05:07 AM
                        Ryzen 9 5000 series processor Gabriele Svelto2021/01/01 03:31 PM
                          Ryzen 9 5000 series processor Jukka Larja2021/01/01 09:58 PM
                            Ryzen 9 5000 series processor Gabriele Svelto2021/01/02 05:51 AM
                              Ryzen 9 5000 series processor Jukka Larja2021/01/02 07:57 AM
                                Ryzen 9 5000 series processor me2021/01/02 04:30 PM
                                  Ryzen 9 5000 series processor Jukka Larja2021/01/02 10:43 PM
                        Ryzen 9 5000 series processor Björn Ragnar Björnsson2021/01/01 08:41 PM
                          Ryzen 9 5000 series processor Jukka Larja2021/01/01 09:53 PM
                            Ryzen 9 5000 series processor Adrian2021/01/02 01:03 AM
                              Ryzen 9 5000 series processor Jukka Larja2021/01/02 07:39 AM
                          Ryzen 9 5000 series processor Adrian2021/01/02 12:52 AM
                          Ryzen 9 5000 series processor me2021/01/02 05:56 AM
                            Ryzen 9 5000 series processor Michael S2021/01/02 11:41 AM
                              Ryzen 9 5000 series processor Adrian2021/01/02 12:43 PM
                              Ryzen 9 5000 series processor Jukka Larja2021/01/02 10:50 PM
                          Crucial/Micron ECC UDIMMsGabriele Svelto2021/01/02 06:09 AM
                            Crucial/Micron ECC UDIMMsMaxwell2021/01/02 09:45 AM
                              Crucial/Micron ECC UDIMMsYuhong Bao2021/01/02 06:29 PM
                  Ryzen 9 5000 series processor Phil9955112021/01/03 07:46 AM
  Ryzen 9 5000 series processor H_Heckuba2021/01/03 12:06 PM
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