https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Wed, 22 Apr 2026 18:35:21 +0000 Fri, 13 Sep 2019 07:38:45 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=12429 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=12429&PID=67837&title=b450m4-fan-problem#67837 Author: Lezion
Subject: 12429
Posted: 13 Sep 2019 at 7:38am

Hi, I'm finishing my server build that uses B450m board with 2700 ryzen in it. I am having a trouble setting up the cooling. I've got custom fan solution with 6 fans running in parallel power straight from 12 rail on psi. They are pwm controlled. Here is the problem, when I am in the bios, and I am setting up the fan curve they respond to the changes corrected. They are connected to fan header 3, with pwm control mode and fan speed set to custom in the bios. But as soon as I click save changes and do the restart, they are back at 100% speed. If I go back to bios, it looks like the setting have been applied but fans are at 100%. As soon as I click one of the fan options they go slow down to the normal speed. No matter what I do as soon as I do that restart fans are 100 speed again. Any ideas?]]> Fri, 13 Sep 2019 07:38:45 +0000 https://forum.asrock.com/forum_posts.asp?TID=12429&PID=67837&title=b450m4-fan-problem#67837