ASRock Forums : ASRock Z370M-ITX/ac - No FAN DC Mode https://forum.asrock.com/ Copyright (c) 2006-2013 Web Wiz Forums - All Rights Reserved. Tue, 07 Apr 2026 09:54:06 +0000 Mon, 18 Dec 2017 04:46:03 +0000 http://blogs.law.harvard.edu/tech/rss Web Wiz Forums 12.04 360 https://forum.asrock.com/RSS_post_feed.asp?TID=6980 <![CDATA[ASRock Forums]]> https://forum.asrock.com/forum_images/web_wiz_forums_black.png https://forum.asrock.com/ <![CDATA[ASRock Z370M-ITX/ac - No FAN DC Mode : Hello,I&#039;ve recently put together...]]> https://forum.asrock.com/forum_posts.asp?TID=6980&PID=41257&title=asrock-z370mitx-ac-no-fan-dc-mode#41257 Author: Ati_
Subject: 6980
Posted: 18 Dec 2017 at 4:46am

Hello,

I've recently put together a PC with the following ASRock motherboard:

ASRock Z370M-ITX/ac

Everything is working perfectly fine except for one thing, which is the ability to fan control the fan that is connected to the 4-pin Chassis Fan Connector. The motherboard has a total of two 4-pin Fan Connector's:

1 x Chassis Optional/Water Pump Fan Connector (4-pin) * The Chassis Optional/Water Pump Fan supports the water cooler fan of maximum 1.5A (18W) fan power.
This connector is known as CHA_FAN1/W_PUMP.

1 x Chassis Fan Connector (4-pin) 
This connector is known as CHA_FAN2.

This motherboard is installed in a Cooler Master Elite 130 case. Now the fans that are included with the Cooler Master Elite 130 are not PWM so I want to run them in DC mode so I can control the fan speed. The chassis fan connected to to CHA_FAN1/W_PUMP can be switched to DC mode through the motherboard BIOS. But the chassis fan connected to CHA_FAN2 cannot be switched to DC mode and because of this I cannot control the fan speed. Is this working as intended or? The following fan is connected to the CHA_FAN2 connector:

Cooler Master A12025-12CB-3EN-F1

It's always running at full speed and I want to lower the fan speed. Should I just buy a 120mm PWM fan or?


Edited by Ati_ - 18 Dec 2017 at 4:50am]]> Mon, 18 Dec 2017 04:46:03 +0000 https://forum.asrock.com/forum_posts.asp?TID=6980&PID=41257&title=asrock-z370mitx-ac-no-fan-dc-mode#41257