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Muwatallis

5v vs 12v rgb

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Posted · Original PosterOP

I have some rgb fans with 12v connector, 4 holes. However my motherboard only seems to have 5v, 3 pins (MSI x570 meg ace).

 

The rgb didn't seem to work. Is there a way round this, or do some motherboards just only support/work with some rgb components?

 

Also the cases front panel rgb did not seem to work either, even though i plugged it into the front panel lighting connector. Is this likely a problem with the mb?

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4-pin RGB connections are the generic, standard 5050 RGB lighting systems. They have 1 pin for 12V and 3 other pins for ground, one for each color.

3-pin RGB connectors are used with addressable/digital RGB lighting systems. They have 1 pin for 12V, 1 for ground and 3rd pin is used for controlling the lights (digital signal).

 

They are physically completely different and incompatible (unlike 3-pin and 4-pin fan headers). You need adapter(s) to use one header with the other connector.


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1 hour ago, Muwatallis said:

I have some rgb fans with 12v connector, 4 holes. However my motherboard only seems to have 5v, 3 pins (MSI x570 meg ace).

 

The rgb didn't seem to work. Is there a way round this, or do some motherboards just only support/work with some rgb components?

 

Also the cases front panel rgb did not seem to work either, even though i plugged it into the front panel lighting connector. Is this likely a problem with the mb?

To make it all compatible your best bet will likely be to pick up an RGB hub.

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Check the motherboard manual properly. There is 1 4-pin header for RGB in the board. Get an RGB hub with suitable number of ports and plug in all your devices into it. PWM fan hubs also work.

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