With six contacts to each fan and NO connections from the individual fans to mobo fan headers like Chassis/WaterPump etc, it is not clear how the fan MOTOR speeds are controlled. For that you must ALSO connect the supplied cable from the board to that mobo 3-pin ARGB header, then run the mobo's software tool for lighting control. (For this, there's a cable from the case top that plugs into that board.) Alternatively, by holding down that button for several seconds, you can tell it to let the signal from the mobo header do the control work. The easy one is to use a button on the case top to make changes manually. It certainly controls the LIGHTS in the fan frames. The board in your case is designed to handle fans with non-standard connectors with 6 pins. You need to use ONLY the one with THREE pins (looks like it had 4, but one missing). Mobos can come with either of two very different types of lighting headers. HELP, I'm new to computer building stuff and I haven't been able to find much info on this! Can this fan controller work with this mobo? Will I need an adapter (is there an adapter)? Will I have to get a new fan controller or will I have to replace all the fans AND get a new fan controller? Alternatively, I could go with the ASRock B450M/AC R2.0 which has a 3pin connector but it doesn't say if it's 5V or 12V (I'm assuming 5V?). ![]() Needless to say, I am very confused by all this. ![]() The motherboard I'm looking at is the ASRock B450M PRO4 which says: "CPU_FAN2/WP, CHA_FAN1/WP, CHA_FAN2/WP and CHA_FAN3/WP can auto detect if 3-pin or 4-pin fan is in use" and "Supports in total up to 5V/3A, 15W LED Strip" (IDK if the 5V for LED is helpful at all?). ( Forbidden connect with 12V 4PIN header)." It comes with five fans and a fan controller but all the info I can find on that is this: "Equipped with Musetex fan control board, please connect 5V 3PIN motherboard interface to control ARGB fan. ![]() I'm working on my first build (major upgrade of first entry level desktop from 2014, basically a complete rebuild) and I've come across a problem with the case that I want (MUSTEX MK7-GM5).
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