Pinout of this LED Header- Which could be Ground

[rohitgangal80]

Hi,
I am going thru MSI B450-PRO-M2 motherboard manual.
The manual can be downloaded here

The 4 pin header pinout is bit confusing. First of all it says single color LED strip and there's no Groung pin. It shows as +12, NC, Signal, NC.

What is Signal pin and which one is supposed to be Ground pin. My single color LED strip has just 2 wires for + & - nothing else. LED Strip did not come with any connector. I will be manually connecting the 2 wires using jumper cables.

Thanks.

 

[Lutfij]

Count the pins from left to right, so if pin #1 is to the far left, pin #3 is towards the left. Single color LED's refers to non-addressable RGB strips. Mind sharing a link to your LED strips? If you're talking about the front panel connectors, it should be located around the SATA connections, i.e JFP1 cluster to the bottom of the baord.

 

[TJ Hooker]

I'm assuming the signal pin acts as a ground. So to turn the LEDs on, the signal pin goes low, to turn them off it goes high.

NC would be "no connection".

 

[rohitgangal80]

Thanks for your answers. As such the LED strip that I have has been locally purchased from electrical shop. It just come with LED strip and 2 wires. + & -. It's not a true PC RGB Strip. I have done a bit of DIY stuff to it. You connect it to a 12V DC source and it steadily glows. Right now it's connected to a 12V fan header (2 pins +12 & Gnd) on my old AM3 board and it works.

I am referring to this JLED1 header only. Not the Front Panel Header.

I think since 'NC' stands for No Connect. I guess Signal must be the return path. Also since manuals says that it only supports single color LED, I guess it can't even be +12V,R,G,B. So will try plugging it in +12V and whatever that Signal is.

Will keep you posted once I give it a try. I hope it should not break anything. It's a Diode I guess, so if connected wrongly should just open circuit it and nothing more.