Taichi Bios 3.20 Linux freeze
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=11402
Printed Date: 23 Nov 2024 at 5:46pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: Taichi Bios 3.20 Linux freeze
Posted By: Paolo61
Subject: Taichi Bios 3.20 Linux freeze
Date Posted: 29 Apr 2019 at 10:21pm
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Hi, after installing the 3.20 BIOS I ahve frequent freeze on my linux pc, I tryed to install a new kernerl 5.x but same problems random freeze . All was been OK and stable from when I build it last December . Please help 
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Replies:
Posted By: kschendel
Date Posted: 30 Apr 2019 at 5:47am
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Verify that "Global C States" is Disabled. I think that's what it's called. I ran into a similar issue going from a 1.5x BIOS to the 2.00 one. Another item to reverify is Idle Current set to Typical. |
Posted By: Paolo61
Date Posted: 30 Apr 2019 at 3:46pm
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thanks i changed the Global C state, was not able to find the Idle flag. For now is working, I test for few days and then if is ok I will close the issue. Thanks. 
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Posted By: Paolo61
Date Posted: 30 Apr 2019 at 11:45pm
| Still freeze, less prone but still :( |
Posted By: kschendel
Date Posted: 30 Apr 2019 at 11:52pm
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I think maybe some of these settings get reset when updating BIOS versions. It's probably a good idea to note down any specific changes you make and re-check them after a BIOS update. That's what I am going to do, going forward! |
Posted By: xhue
Date Posted: 01 May 2019 at 3:07am
| Also note that if you want all the bells and whistles on Ryzen under Linux, it's a thorny garden. Even kernel is being still patched for a few things when Ryzen is in play. |
Posted By: shmerl
Date Posted: 01 May 2019 at 11:08am
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If you have first generation Ryzens - the freezes are a known hardware bug. The only proper fix is to get second generation Ryzen and newer. See: https://bugzilla.kernel.org/show_bug.cgi?id=196683 The firmware should have a workaround (something like "typical current idle"). But it just disables package C6, it's not a real fix. It does prevent freezes though. |
Posted By: jinjervitus
Date Posted: 02 May 2019 at 12:58am
Not quite correct. This hardware bug only affected pre-week 25 cpus. If you have one, AMD will RMA and replace it with a post -week 25 cpu, still first gen. Anything week 25 or later is not affected. Typical power setting is still sometimes needed for ryzen+. This is the case for my 2700x. |
shmerl wrote:Posted By: shmerl
Date Posted: 02 May 2019 at 9:11am
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The freeze bug affects all first generation Ryzens, no exception. Just not 100% of them. The week doesn't matter. You are mixing it with another hardware bug, that caused segfaults due to some messed up memory access. That was indeed fixed in later batches. But the freeze issue was not. Only Zen+ fixes it. |
Posted By: Paolo61
Date Posted: 02 May 2019 at 4:52pm
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The point is Bios 3.10 e previous all Works OK Bios 3.20 freeze So is not a Ryzen problem  I was not able to find the idle setting on this Bios, I set other parameters and now hope it works. More later on. But thanks fo all the suggestions. :) |
Posted By: Paolo61
Date Posted: 02 May 2019 at 9:54pm
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Still freeze
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Posted By: jinjervitus
Date Posted: 03 May 2019 at 1:44pm
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[QUOTE=shmerl] The freeze bug affects all first generation Ryzens, no exception. Just not 100% of them. The week doesn't matter. You are mixing it with another hardware bug, that caused segfaults due to some messed up memory access. That was indeed fixed in later batches. But the freeze issue was not. Only Zen+ fixes it.[/QUOTE Help me out here. The segfaults which manifested to ferociously in linux on 1st gen Ryzens was due to the pre week-25 hardware flaw? And If I'm getting this right, the C6, sleep state thing is the other bug you refer to? If so, the sleep state bug also affects Ryzen+, as the Typical current Idle setting in firmware was necessary for my 2700x. Am I nearer the mark now? |
Posted By: paologab
Date Posted: 03 May 2019 at 6:06pm
hi, when I set up the box I solved the issue of seldom random freezes enablig the ram voltage to manual offset at -0,1v (now I'm @ -0,08) and setting the two ram LLc voltages to 3. I enabled also the OC voltage profile even if I didn't oc neither the processor nor the ram. Still, I'd enabled the XFR/PBO. More on cstates and so on, in my notes for this issue, I'd also 'disable cool and quiet'. ------------- AMD Ryzen 7 2700X w/Wraith prism x470 Taichi bios 3.50 16gb HX432C16PB3K2/16 (hynix H5AN8G8NCJR-UHC) M.2 970 EVO, SATA SSD, 2 SATA HDD AMD Radeon RX 580 8G OC Linux Kernel 5.4 Manjaro Stable XFCE |
Posted By: Paolo61
Date Posted: 03 May 2019 at 7:10pm
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Thanks I will try, now is all on default. it coul be a good idea. Let you know
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Posted By: Paolo61
Date Posted: 05 May 2019 at 4:24pm
| I was able to change few of the BIOS parameter bu I can't find the LLC for the RAM, in any case now it freeze only when it start and after few reboot it works OK for the day. |
Posted By: shmerl
Date Posted: 06 May 2019 at 3:49am
Segfault is different from hardware freezes, yes. If you are still getting hardware freezes even with Ryzen+, then you got some really bard part. Try RMAing it. A lot of Ryzen+ don't have the freeze issue. I suppose it still happens in some defective chips, but only in some minority, unlike in first generation Ryzens. |
Posted By: jinjervitus
Date Posted: 07 May 2019 at 12:54am
I never said I was getting hardware freezes. Because I am not. My 2700x system is fine and completely stable, idle or under load. I'm merely trying to understand how many issues there are, whom they affect and what mitigates/fixes them. I'm interested in this stuff. |
Posted By: shmerl
Date Posted: 08 May 2019 at 7:04am
There are two issues. 1. Segfaults under heavy multi-threaded load. Affects early first generation Ryzen chips. 2. Freezes due to C6 (idle). Affects all first generation Ryzens. I.e. Ryzen+ should should be free of both of them as far as I know. |
Posted By: jinjervitus
Date Posted: 08 May 2019 at 10:50am
| Ah. Thanks. I will test the C6 issue on my 2700x, as I have it off for some reason. I might have justnthrown that into the pot while first setting my system up, unaware that it did not apply to my CPU. Is this the same issuenthat is addressed by setting Low Current to Tyoical instead of Idle? |
Posted By: Paolo61
Date Posted: 05 Jun 2019 at 6:36pm
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Fixed with the new BIOS 3.4. Works also with new kernel 5.1.5 
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Posted By: Onox
Date Posted: 06 Jun 2019 at 2:21am
It's true that the segfault bug only affects first gen Ryzens, but 2. is not true ; Ryzen+ systems can still suffer from the freeze issue. Only the latest BIOS updates seem to solve it, but maybe not for everyone on Linux, depending on the kernel version used too |