https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Thu, 16 Apr 2026 17:06:38 +0000 Wed, 14 Dec 2022 03:10:00 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=25197 https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ https://forum.asrock.com/forum_posts.asp?TID=25197&PID=102349&title=fan-control#102349 Author: SerchTech
Subject: 25197
Posted: 14 Dec 2022 at 3:10am

Hi

Only 4 pin fan headers can be controlled via BIOS, seems that your B450M Pro4-F has 1x4-pin for CPU and 1x4-pin for chassis, that's why no options in BIOS to control CHA_FAN2, because it's 1x3-pin fan header.

I would recommend you a 4-pin fan splitter and forget CHA_FAN2, you'll be able to control all chassis fans.


Best regards and good luck]]> Wed, 14 Dec 2022 03:10:00 +0000 https://forum.asrock.com/forum_posts.asp?TID=25197&PID=102349&title=fan-control#102349 https://forum.asrock.com/forum_posts.asp?TID=25197&PID=102345&title=fan-control#102345 Author: Lootgoblin
Subject: 25197
Posted: 13 Dec 2022 at 9:40am

Hello,
since recently i own an ASRock B450m Pro4-F motherboard. It has everything i need on a MB, but the fan on CHA_FAN2 is always running on maximum speed. In the BIOS there is only the possibility to control CPU_FAN and CHA_FAN1. Can somebody please give me an advice how to control CHA_FAN2. I have already tried SpeedFan.]]> Tue, 13 Dec 2022 09:40:17 +0000 https://forum.asrock.com/forum_posts.asp?TID=25197&PID=102345&title=fan-control#102345