[SOLVED] MSI 3pin 5V header to Corsair H100i

sourovg.15

Commendable
Nov 25, 2018
2
0
1,510
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I have an MSI motherboard (MSI z490i Unify), the issue is, is that the only RGB headers on the motherboard are all 3pin 5v rgb headers. Unfortunately the RGB on the fans and CPU block of the H100i are all controlled by 4pin 12v RGB headers. These two connections are not compatible, would I need a 5v to 12v rgb hub/converter? Is there any other solution?

Thank you.
 

Aeacus

Champion
Ambassador
Sadly, the technologies are different between the two and you can't combine them.

On the regular +12V RGB header (4-pin), all LEDs of a primary color (R, G, B) are chained together and act simultaneously depending on the input signal. This makes individual LED addressing impossible.

Pinout:
pin #1 - +12V
pin #2 - G (green color)
pin #3 - R (red color)
pin #4 - B (blue color)

On the +5V RGB header (3-pin), there is LED driver control for each RGB LED package that translates the serial information coming in through the data pin into a specific output for that LED package it is attached to. That method makes single LED addressing possible.

Pinout:
pin #1 - +5V
pin #2 - data
pin #3 - empty (no pin)
pin #4 - ground

However, there are several products that give you 4-pin +12V RGB header. For example;

RGB hub, like Silverstone LSB01,
specs: https://www.silverstonetek.com/product.php?pid=729&area=en

3.5" external bay controller, Akasa Vegas control panel,
specs: http://www.akasa.com.tw/update.php?tpl=product/product.detail.tpl&no=181&type=Gaming&type_sub=RGB LED Lighting&model=AK-RLD-01

PCI-E card, Akasa Vegas control card,
specs: http://www.akasa.com.tw/update.php?tpl=product/product.detail.tpl&no=181&type=Gaming&type_sub=RGB LED Lighting&model=AK-RLD-02

And many more.
 

Aeacus

Champion
Ambassador
Sadly, the technologies are different between the two and you can't combine them.

On the regular +12V RGB header (4-pin), all LEDs of a primary color (R, G, B) are chained together and act simultaneously depending on the input signal. This makes individual LED addressing impossible.

Pinout:
pin #1 - +12V
pin #2 - G (green color)
pin #3 - R (red color)
pin #4 - B (blue color)

On the +5V RGB header (3-pin), there is LED driver control for each RGB LED package that translates the serial information coming in through the data pin into a specific output for that LED package it is attached to. That method makes single LED addressing possible.

Pinout:
pin #1 - +5V
pin #2 - data
pin #3 - empty (no pin)
pin #4 - ground

However, there are several products that give you 4-pin +12V RGB header. For example;

RGB hub, like Silverstone LSB01,
specs: https://www.silverstonetek.com/product.php?pid=729&area=en

3.5" external bay controller, Akasa Vegas control panel,
specs: http://www.akasa.com.tw/update.php?tpl=product/product.detail.tpl&no=181&type=Gaming&type_sub=RGB LED Lighting&model=AK-RLD-01

PCI-E card, Akasa Vegas control card,
specs: http://www.akasa.com.tw/update.php?tpl=product/product.detail.tpl&no=181&type=Gaming&type_sub=RGB LED Lighting&model=AK-RLD-02

And many more.
 

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