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3-pin AIO pump speed adjustable in BIOS£

Printed From: ASRock.com
Category: Technical Support
Forum Name: Intel Motherboards
Forum Description: Question about ASRock Intel Motherboards
URL: http://forum.asrock.com/forum_posts.asp?TID=24981
Printed Date: 01 Mar 2024 at 9:52pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com


Topic: 3-pin AIO pump speed adjustable in BIOS£
Posted By: Galactic
Subject: 3-pin AIO pump speed adjustable in BIOS£
Date Posted: 10 Oct 2022 at 3:12am
First to say, I have no experience with AIO, but would like to buy one. Now I see in the BIOS of my motherboard (ASRock B660M-ITX/ac) that I do have a 4-pin header (No. 4 in manual = Chassis/Waterpump Fan Connector (CHA_FAN1/WP).

Although the AIO set I would like to buy comes with a 3-PIN connector. I know I could plugin into my 4-pin but if I'm not mistaking it will run continuously at 100% and that is what I would really like to avoid actually.

I have seen some options to set things like DC mode etc... the question is, will I be able in any way to adjust the voltage / amperage of the header once the pump would be plugged in, so I can make sure it will run only at 40-50-60% of the full speed? Or are there other options to do so with a 3-pin pump connector?



Replies:
Posted By: Xaltar
Date Posted: 10 Oct 2022 at 4:38am
I am not sure about your board but all my ASRock boards with a pump header support
DC voltage control. I typically run my pump at 100%. There are many different
opinions on what works best/lasts longest however. All I know for sure is my
AIO is 5 years old and still going strong.

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Posted By: Galactic
Date Posted: 10 Oct 2022 at 4:30pm
Yes, so if I understand it correctly, you could decrease the voltage on the port to let's say 8 volts so the pump will be let's say +- 60%.


Posted By: Xaltar
Date Posted: 10 Oct 2022 at 8:17pm
Yes, in DC mode the board regulates voltage rather than relying on PWM.

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Posted By: Galactic
Date Posted: 10 Oct 2022 at 8:56pm
Alright, I'll do it that way, thanks for the help!



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