Intel Motherboards - Pump Control min 60% forced?

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Pump Control min 60% forced? - Z370 Gaming K6

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=12461
Printed Date: 04 Aug 2025 at 9:08pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Pump Control min 60% forced? - Z370 Gaming K6

Posted By: Jeye
Subject: Pump Control min 60% forced? - Z370 Gaming K6
Date Posted: 18 Sep 2019 at 8:15pm

I have a D5 pump installed on the CPU opt connector in PWM pump mode in the BIOS. Using custom settings I cannot set the value of the target speed less than 60% which is too high for just idleing on this sort of pump.

If I set it away from custom and onto silence it drops it down to about 20% which is too low! Normal and anything higher is just driving the pump to hard again.

Anyone else having this, has anyone found a work around?

Replies:

Posted By: ASRock_TSD
Date Posted: 27 Sep 2019 at 11:55am

Dear Jeye,

Thank you for choosing ASRock.

Regarding you case, please try to connect the pump to CPU Optional/Water Pump Fan Connector and Chassis Optional/Water Pump Fan Connector.
Set the fan to Water Pump mode and use custom setting to adjust the value you want.
Also, please try to use A-Tuning under Windows to customize your pump speed.

Thank you!
Yours truly,
ASRock TSD