ASRock Forums : Thermal throttling Ryzen X @75°C

ASRock Forums : Thermal throttling Ryzen X @75°C https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Sun, 17 May 2026 02:33:07 +0000 Thu, 23 Nov 2017 01:51:55 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=6682 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[Thermal throttling Ryzen X @75°C : Hello,i like ASRock but with the...]]> https://forum.asrock.com/forum_posts.asp?TID=6682&PID=39726&title=thermal-throttling-ryzen-x-75c#39726 Author: Rocco1180
Subject: 6682
Posted: 23 Nov 2017 at 1:51am

Hello,

i like ASRock but with the new AM4 platform a few things are very strange.

Hardware:

ASRock AB350 Gaming ITX

Ryzen 5 1600X with a LC Power Cosmo Cool LC-CC-120 (max TDP 180W)

No Case (open Build on a Lian Li ITX test bench)

Problem one:

My AB350 Gaming ITX throttling the CPU at 75°C real Temp (Tdie) or 95°C offset temp (Tctl).

AMD integrate the +20°C offset to influence the fan control. Throttling should happen at 95°C real Temp or 115°C offset temp. Ryzen CPU without "X" will throttle at 95°C real Temp.

Next question:

Why does ASRock use its own temp sensor for fan control? This sensor is a way behind the cpu temp and inert.

I have two pictures to illustrate the problem.

The First shows the values schortly after startup of a cpu intesive application.

The temperature is rising.

The second picture shows the throttling of the clock and the voltage after reaching the 95°C offset temerature. Throttling should begin at 95°C real temp (Tdie) or 115°C offset temp.

Below you can see the CPU temperature used for the fan control. This is much too low (66.5°C) and very lethargic.

]]> Thu, 23 Nov 2017 01:51:55 +0000 https://forum.asrock.com/forum_posts.asp?TID=6682&PID=39726&title=thermal-throttling-ryzen-x-75c#39726