AMD Motherboards - Proper way to connect RGB Fans

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Proper way to connect RGB Fans

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=11457
Printed Date: 27 Jul 2025 at 11:26pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com

Topic: Proper way to connect RGB Fans

Posted By: smrtech
Subject: Proper way to connect RGB Fans
Date Posted: 11 May 2019 at 3:03am

I have a new Steel Legend B450M MB. I want to connect a set of daisy chained
RGB fans (3) to the MB for RGB purposes. I am OK with the power hookup which
is a separate set of wires. I rather control via the MB

I see there are 2 extra RGB headers on the MB. One says RGB_HEADER1
and the other right next to it says ADDR_LED1, both 4 pins. So
for the PCCooler fans that have a 4-way RGB splitter, which can I connect
them to? The 4-way has a mark for 5V on one pin. Will either work?

Next I have similar RGB fans that came with my CoolerMaster Q300P case
- 2 RGB fans. Same thing....can I use one of those headers for the
PCCooler fans (3) and other for the case fans RGB (2) which also
has a splitter?

Do I have to be careful about current draw for the RGB header at all?

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Steel Legend B450M, Ryzen R7 2700,CoolerMaster Q300P Case, CoolerMaster MasterWatt 650