AIO not lighting up

[Alexus01]

So a while back I bought a used corsair aio cooler. Got it all hooked up (cooler was working) but for some reason the aio pump would not light up. Assuming there was an issue with the used cooler, I bought a new Lian Li Galahad cooler and I'm still having the same issue. I built my own pc but I'm only learning as I go so I don't really know what I'm doing. I have an Msi b450 Tomhawk max motherboard. The aio fans were lighting up at one point, but they no longer are. Any tips/suggestions would be very much appreciated! This has been driving me insane trying to figure out the issue. TIA!

[Shimejii]

Where exactly are you plugging in the RGB Header and USB header? You can only get lights to work when you use the correct RGB header, some have a Sata power connector incase you dont have one.

[I._.T]

Have You plugged in the usb header and rgb header if so please send photos of were they are pluged in on your mobo 

[I._.T]

it might also have some thing to do with mother board compatibility 

[Alexus01]

The rgb header is connected to the button that came with the cooler which connects via sata cable. I also checked that they were compatible before I bought the cooler and pcpartpicker said they were. I've also seen people on YouTube use this cooler with the same motherboard