Misiek690

Get yourself this thing. https://www.superbrightleds.com/moreinfo/controllers-dimmers/mini-rgb-controller-with-rf-remote-dynamic-color-changing-modes-4-amps-per-channel/1261/2932/ But keep in mind that you'll be only able to control RGB with this included remote since you have no RGB header on your motherboard.

After surface calibration type lighting backlight doesn't work when i'm clicking on my wired Ironclaw RGW mouse. I need to restart iCUE to make it work again.

I guess 550 or 600W would be good since it will give you some extra power if you'll want to upgrade your PC in the future. :)

Check if you doesn't have left earphone volume set to 0 in iCUE software or Windows volume control panel.