ASRock Forums : AVX Offset bug / 8700k / Z370 Extreme 4 https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 10 Jun 2026 09:16:20 +0000 Fri, 27 May 2022 01:08:14 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=8115 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[AVX Offset bug / 8700k / Z370 Extreme 4 : Not to necro this thread, but...]]> https://forum.asrock.com/forum_posts.asp?TID=8115&PID=99151&title=avx-offset-bug-8700k-z370-extreme-4#99151 Author: itsbranden
Subject: 8115
Posted: 27 May 2022 at 1:08am

Not to necro this thread, but I'm experiencing the same 'bug' with my Asrock Z390 Extreme4.

However, I do not use an AVX offset.

This bug is only present when utilizing the Voltage Offset feature of the motherboard. It does not appear when using fixed voltage.

It's incredibly frustrating because I would love to lower my voltage at idle but this board just doesn't allow it after sustaining AVX load for an extended period of time.

Also - you mentioned that when this behavior happens or starts happening, when you restart the computer it basically turns itself off and then back on again. I also noticed this happens as well when the CPU is in this 'state'.

I'm considering upgrading to a Z690 board with 12-series CPU and I've basically written ASrock off as an option at this point. It's really disappointing because I loved the Z77 Extreme board I had with my 3770k and it was the reason I purchased the Z390 Extreme4 but this whole thing completely turned me off from them as a vendor.]]> Fri, 27 May 2022 01:08:14 +0000 https://forum.asrock.com/forum_posts.asp?TID=8115&PID=99151&title=avx-offset-bug-8700k-z370-extreme-4#99151 <![CDATA[AVX Offset bug / 8700k / Z370 Extreme 4 : Personally, I think you need to...]]> https://forum.asrock.com/forum_posts.asp?TID=8115&PID=48141&title=avx-offset-bug-8700k-z370-extreme-4#48141 Author: wardog
Subject: 8115
Posted: 20 Mar 2018 at 12:06am

Personally, I think you need to dial back your OC some.

Until you get better cooling anyways.
]]> Tue, 20 Mar 2018 00:06:03 +0000 https://forum.asrock.com/forum_posts.asp?TID=8115&PID=48141&title=avx-offset-bug-8700k-z370-extreme-4#48141 <![CDATA[AVX Offset bug / 8700k / Z370 Extreme 4 : However, I am afraid of running...]]> https://forum.asrock.com/forum_posts.asp?TID=8115&PID=48112&title=avx-offset-bug-8700k-z370-extreme-4#48112 Author: Spunky
Subject: 8115
Posted: 19 Mar 2018 at 4:26pm


However, I am afraid of running this for more than 30 minutes as the temps get near the limit. The cooler is not capable of handling so much heat although I have put liquid metal between die and IHS and cooler as well. 

I want to get the same none AVX performance using the offset, however, it does not work for me. Multiplier just gets stucks sometimes until reboot.

I will try to work with the offset voltage but it also feels buggy.
]]> Mon, 19 Mar 2018 16:26:36 +0000 https://forum.asrock.com/forum_posts.asp?TID=8115&PID=48112&title=avx-offset-bug-8700k-z370-extreme-4#48112 <![CDATA[AVX Offset bug / 8700k / Z370 Extreme 4 : 1.424v? Surely you jest! ]]> https://forum.asrock.com/forum_posts.asp?TID=8115&PID=48108&title=avx-offset-bug-8700k-z370-extreme-4#48108 Author: wardog
Subject: 8115
Posted: 19 Mar 2018 at 2:53pm

1.424v? Surely you jest!
]]> Mon, 19 Mar 2018 14:53:31 +0000 https://forum.asrock.com/forum_posts.asp?TID=8115&PID=48108&title=avx-offset-bug-8700k-z370-extreme-4#48108 <![CDATA[AVX Offset bug / 8700k / Z370 Extreme 4 : Hey guys,My spec is the following:i7-8700kAsrock...]]> https://forum.asrock.com/forum_posts.asp?TID=8115&PID=48097&title=avx-offset-bug-8700k-z370-extreme-4#48097 Author: Spunky
Subject: 8115
Posted: 19 Mar 2018 at 12:13pm

Hey guys,

My spec is the following:

i7-8700k
Asrock Z370 Extreme 4
G skills 2x8GB 3200mhz CAS14
Cooler for the CPU is Noctua NH D15


I can run 5GHz AVX at 1,424V with temps reaching 90C and package power at nearly 330W(Prime 95 smallFTT).

However, I have found a sweet spot at 5Ghz with -2 Offset at 1.32V. Here is the bug I am experiencing. When I do a stress test, for instance, Prime95 29 small FTT. The CPU downclocks to 4.8 accordingly, however after I stop the test the CPU is stuck at 4.8Ghz even when there is no load at all and it never goes to 5Ghz again until next reboot. Even the restart is a bit suspicious. When I restart the computer, it shuts down(cuts power completely) for a moment and then starts again. Usually, when you restart, the computer does not cut the power for a moment(fans and lightning on the board are on). Also, I have observed that sometimes when executing AVX instructions in a stress test the CPU does not downclock. For instance, while running Intel Burn Test the frequency keeps at 5Ghz, however, the consumption is way lower (100-120W instead of the usual 200W+) and the Gflops are way lower than in a usual test(50gflops instead of 150). All that while the CPU is at 5Ghz and 100% utilization. It appears that those bugs happen only when utilizing AVX.

Have anyone observed such behavior?

Best Regards!]]> Mon, 19 Mar 2018 12:13:33 +0000 https://forum.asrock.com/forum_posts.asp?TID=8115&PID=48097&title=avx-offset-bug-8700k-z370-extreme-4#48097