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Finally! I’ve been using a Ryzen 1800x since it’s release. Unfortunately, it has some stability issues and I’ve been waiting to upgrade on the Ryzen 3000, 7nm l

Finally! I’ve been using a Ryzen 1800x since it’s release. Unfortunately, it has some stability issues and I’ve been waiting to upgrade on the Ryzen 3000, 7nm line. This is going to be a solid 75%+ boost to performance, given I regularly max out my machines threads. Pretty amazing improvement in 2 years.

m0zg 7y ago
Could be that it'll still continue to have stability issues. For some reason Ryzens are extremely picky when it comes to memory. There's really no guarantee that 3-rd gen will resolve this issue. It's to the point where e.g. Corsair makes memory specifically designed to work with AMD CPUs. This memory typically contains Samsung B-die chips which work fairly well.
- coder543 7y ago
  No, the stability issues they're talking about are on a release day 1800X. It's not memory issues, and I've never had memory issues with either of my Ryzen processors. This is the issue they're certainly talking about: https://www.phoronix.com/scan.php?page=news_item&px=Ryzen-Segv-Response https://www.phoronix.com/scan.php?page=news_item&px=Ryzen-Se... And it is assuredly not a problem with any Ryzen processors manufactured after the very first few months.
  - m0zg 7y ago
    So I must be imagining my problems with Threadripper memory kits as of early this year as well as my coworkers problems with his 1800X. Hmm, OK then. HN knows best.
  - IronBacon 7y ago
    There was also a problem with P-states and Ryzen CPUs crashing/stalling in idle, but only with Linux kernels. I never experienced it myself but in my BIOS there's an option about "power on idle" that's suggested to not turn off for compatibility (I don't recall the correct words but I could check). It usually depends on MB manufacturers and BIOS/AGESA versions.
  - readittwice 7y ago
    Well, there are some stability issues with my ryzen 2700x. At first there were CPU freezes in idle on Linux: https://bugzilla.kernel.org/show_bug.cgi?id=196683 https://bugzilla.kernel.org/show_bug.cgi?id=196683. After applying workarounds, I still see some strange crashes, not sure if at least some of those are still related to the CPU hangs from the bug above. TBF this might not be the CPU's fault. This is all quite annoying to me and time intensive to investigate (where do I even start?). Even though I really like AMD's tech I am quite frustrated and I haven't had these problems with my previous Intel builds so far...
- kalessin 7y ago
  I had troubles with my memory (4*16GB with a 2950X) until I realized it was configured in 1T command rate by default. Things appear to be rock stable in 2T. Anyway, yeah, memory is more tricky than it should on Ryzen.
  - m0zg 7y ago
    Thanks for the tip. I didn't even know about this: https://www.reddit.com/r/Amd/comments/5ywq3s/ryzen_ddr4_command_rate_is_1t_or_2t/ https://www.reddit.com/r/Amd/comments/5ywq3s/ryzen_ddr4_comm.... There's a screenshot further down in the thread.
snvzz 7y ago
Bad ram that doesn't perform to spec is the cause most of the time. Ryzen runs them tight to spec, whereas intel is more relaxed. Here tight is better, but it also means exposing lies in manufacturer specs on ram. Cheapening on ram is never a good idea, but there's always the option of configuring more relaxed timings on the firmware settings, if the ram isn't up to its advertised spec. It's also possible your CPU is one of the first iteration of 1800x which had this issue that famously caused segfaults when compiling software on Linux. This was only seen on the first months of 1800x, and AMD offered free replacements to those affected. It's likely a bit late for that, but you're better off upgrading to Ryzen 3xxx anyway.
- dralley 7y ago
  I started getting crashes recently and so I did a memtest64 run. A couple of errors... but only in one of the tests. I backed the memory clocks down from 3200 (which it's supposed to be rated for) to 3000 and it passed with no errors.
  - sundvor 7y ago
    Are you running correct voltage for 3200? Double check the spec! (Got bitten by this).
    - dralley 7y ago
      1.35v
dewyatt 7y ago
My desktop w/a Ryzen 1800x still randomly freezes. I disabled most of the power saving features in the UEFI, which definitely reduced the frequency but it still happens on rare occasions. :(
- chupasaurus 7y ago
  Sounds like a problem with enabled C6 CPU state. Check out the web for a particular setting in your motherboard's BIOS.
- clarry 7y ago
  Mine does too, that is until I run sudo ZenStates-Linux/zenstates.py --c6-disable (I've got 29 days of uptime right now and the last reboot was due to a system upgrade)

m0zg 7y ago

Could be that it'll still continue to have stability issues. For some reason Ryzens are extremely picky when it comes to memory. There's really no guarantee that 3-rd gen will resolve this issue. It's to the point where e.g. Corsair makes memory specifically designed to work with AMD CPUs. This memory typically contains Samsung B-die chips which work fairly well.

coder543 7y ago
No, the stability issues they're talking about are on a release day 1800X. It's not memory issues, and I've never had memory issues with either of my Ryzen processors. This is the issue they're certainly talking about: https://www.phoronix.com/scan.php?page=news_item&px=Ryzen-Segv-Response https://www.phoronix.com/scan.php?page=news_item&px=Ryzen-Se... And it is assuredly not a problem with any Ryzen processors manufactured after the very first few months.
- m0zg 7y ago
  So I must be imagining my problems with Threadripper memory kits as of early this year as well as my coworkers problems with his 1800X. Hmm, OK then. HN knows best.
- IronBacon 7y ago
  There was also a problem with P-states and Ryzen CPUs crashing/stalling in idle, but only with Linux kernels. I never experienced it myself but in my BIOS there's an option about "power on idle" that's suggested to not turn off for compatibility (I don't recall the correct words but I could check). It usually depends on MB manufacturers and BIOS/AGESA versions.
- readittwice 7y ago
  Well, there are some stability issues with my ryzen 2700x. At first there were CPU freezes in idle on Linux: https://bugzilla.kernel.org/show_bug.cgi?id=196683 https://bugzilla.kernel.org/show_bug.cgi?id=196683. After applying workarounds, I still see some strange crashes, not sure if at least some of those are still related to the CPU hangs from the bug above. TBF this might not be the CPU's fault. This is all quite annoying to me and time intensive to investigate (where do I even start?). Even though I really like AMD's tech I am quite frustrated and I haven't had these problems with my previous Intel builds so far...
kalessin 7y ago
I had troubles with my memory (4*16GB with a 2950X) until I realized it was configured in 1T command rate by default. Things appear to be rock stable in 2T. Anyway, yeah, memory is more tricky than it should on Ryzen.
- m0zg 7y ago
  Thanks for the tip. I didn't even know about this: https://www.reddit.com/r/Amd/comments/5ywq3s/ryzen_ddr4_command_rate_is_1t_or_2t/ https://www.reddit.com/r/Amd/comments/5ywq3s/ryzen_ddr4_comm.... There's a screenshot further down in the thread.

snvzz 7y ago

Bad ram that doesn't perform to spec is the cause most of the time. Ryzen runs them tight to spec, whereas intel is more relaxed. Here tight is better, but it also means exposing lies in manufacturer specs on ram. Cheapening on ram is never a good idea, but there's always the option of configuring more relaxed timings on the firmware settings, if the ram isn't up to its advertised spec. It's also possible your CPU is one of the first iteration of 1800x which had this issue that famously caused segfaults when compiling software on Linux. This was only seen on the first months of 1800x, and AMD offered free replacements to those affected. It's likely a bit late for that, but you're better off upgrading to Ryzen 3xxx anyway.

dralley 7y ago
I started getting crashes recently and so I did a memtest64 run. A couple of errors... but only in one of the tests. I backed the memory clocks down from 3200 (which it's supposed to be rated for) to 3000 and it passed with no errors.
- sundvor 7y ago
  Are you running correct voltage for 3200? Double check the spec! (Got bitten by this).
  - dralley 7y ago
    1.35v

dewyatt 7y ago

My desktop w/a Ryzen 1800x still randomly freezes. I disabled most of the power saving features in the UEFI, which definitely reduced the frequency but it still happens on rare occasions. :(

chupasaurus 7y ago
Sounds like a problem with enabled C6 CPU state. Check out the web for a particular setting in your motherboard's BIOS.
clarry 7y ago
Mine does too, that is until I run sudo ZenStates-Linux/zenstates.py --c6-disable (I've got 29 days of uptime right now and the last reboot was due to a system upgrade)