Intel Motherboards - Asrock H170m pro4 DC fan control

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Asrock H170m pro4 DC fan control

Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=11876
Printed Date: 05 Aug 2025 at 1:00am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Asrock H170m pro4 DC fan control

Posted By: PanSamorost
Subject: Asrock H170m pro4 DC fan control
Date Posted: 14 Jul 2019 at 1:20am

Hello, is it possible to control 3pin fans on this motherboard via DC so that they don't have to run at full speed 24/7?

Replies:

Posted By: badbri
Date Posted: 15 Jul 2019 at 7:41am

Yes most 3 wire fans are controllable when set to DC in BIOS and you have the option to adjust speed. There are some older 3 wire fans that are not controllable (like some LED bulbs are not dimmable). I would try the custom DC settings in BIOS.

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