https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 22 Apr 2026 20:14:57 +0000 Mon, 26 Aug 2019 22:04:05 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=12159 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=12159&PID=67182&title=avx-offset-in-x570-steel-legend#67182 Author: Tassadar
Subject: 12159
Posted: 26 Aug 2019 at 10:04pm

Many thanks for the answer and sorry me for not replying before.]]> Mon, 26 Aug 2019 22:04:05 +0000 https://forum.asrock.com/forum_posts.asp?TID=12159&PID=67182&title=avx-offset-in-x570-steel-legend#67182 https://forum.asrock.com/forum_posts.asp?TID=12159&PID=66434&title=avx-offset-in-x570-steel-legend#66434 Author: Ray62
Subject: 12159
Posted: 10 Aug 2019 at 4:39pm

I think you cannot find an AVX offset in any bios for Zen2:
Quote from https://www.overclock.net/forum/10-amd-cpus/1728758-strictly-technical-matisse-not-really.html

Unlike Intel designs, Matisse does not feature an offset for 256-bit workloads. This means that to ensure the stability of the CPU cores in every scenario, they must be tested using this kind of a workload.
On Matisse, the delta in power consumption between the scalar and 256-bit vector instructions is massive, as expected (37%). That being said, there seems to be other design related factors limiting the maximum achievable frequency.
Despite significantly lower power consumption and therefore also lower temperatures, stability even in pure scalar workloads could not be achieved at much higher frequencies, compare to FRU scenario.
]]> Sat, 10 Aug 2019 16:39:51 +0000 https://forum.asrock.com/forum_posts.asp?TID=12159&PID=66434&title=avx-offset-in-x570-steel-legend#66434 https://forum.asrock.com/forum_posts.asp?TID=12159&PID=66401&title=avx-offset-in-x570-steel-legend#66401 Author: Tassadar
Subject: 12159
Posted: 10 Aug 2019 at 1:48am

Hi all,

I've look all setting in bios but I've found nothing related with AVX offset.

The thing is AVX2 heats system so much that it limit the max vcore and speed I can overclock my 3800x, with non-AVX test I could set for example 1,325v and 4350mhz or even more, but due to AVX I can't set more than 1,270v and 4300 mhz in order to have stable system.

Regards]]> Sat, 10 Aug 2019 01:48:22 +0000 https://forum.asrock.com/forum_posts.asp?TID=12159&PID=66401&title=avx-offset-in-x570-steel-legend#66401