AMD Motherboards - x370 Taichi - 3 fans on one header via splitter?

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x370 Taichi - 3 fans on one header via splitter?

Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=8768
Printed Date: 19 Jul 2025 at 6:56am
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: x370 Taichi - 3 fans on one header via splitter?

Posted By: TrevinLC1997
Subject: x370 Taichi - 3 fans on one header via splitter?
Date Posted: 24 May 2018 at 4:44pm

I have 7 fans and need to know if I can use a 3 way splitter on each chas_fan header.

These are the fans I am using: https://www.newegg.com/Product/Product.aspx%3FItem=N82E16835181132&cm_re=rgb_fan-_-35-181-132-_-Product" rel="nofollow - Corsair LL120 https://www.newegg.com/Product/Product.aspx?Item=N82E16835181132&cm_re=rgb_fan-_-35-181-132-_-Product

The spec sheet says each fan has a power draw of 0.3A.

Will it work fine or is there a chance of damaging the board? Also what is the maximum power a chassis header can output?

Replies:

Posted By: Erasmus_Tycho
Date Posted: 25 May 2018 at 6:38am

" rel="nofollow - If my understanding is correct, each header is capable of 1amp, So if you're running 3 at .3, you should be good. I know I've run 2 on a single header, never 3 though.

Anyone else care to confirm?

Posted By: TooQik
Date Posted: 25 May 2018 at 11:11am

As Erasmus_Tycho pointed out, each fan header can supply 1A of current, so as long as your total current draw of all three fans is 1A or lower then you will be fine.

I'm currently running six fans on my radiator using a three way splitter on both the CPU_OPT/W_PUMP and CHA_FAN1 headers. My current draw for each fan is 0.3A, the same as the draw of the fans you're using.

It's also worth noting that the two headers that allow water pump control will allow up to 1.5A of current each. So if you have three fans on a splitter that require more than 1A and up to 1.5A, use the CPU_OPT/W_PUMP and/or CHA_FAN3/W_PUMP headers.

Posted By: cx5
Date Posted: 28 May 2018 at 5:08pm

" rel="nofollow - Get this powered splitter https://item.taobao.com/item.htm?spm=a1z09.2.0.0.3d232e8dvtWBMX&id=548529008038&_u=sb8lko6ee6d

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