no idea whats causing it New build help

[Nicksplitter]

I’m attempting to build my first computer ever so ya know beginner  mistakes is probably the cause of this problem but any help or suggestions would be great.

My problem is nothing else in my computer is lighting up besides the ram this happens when I turn on the psu (I don’t even need to touch the power switch on the computer just the psu switch) my motherboard rgbs flash for a split sec then go off but ram stays lit my fans don’t light up or turn on, gpu rgb doesn’t light up and definitely has no display and pressing the power switch on the case doesn’t change any of this the ram just stays lit nothing else.

Parts list

-CPU:Ryzen 9 5900x 

-MB:Aorus x570 elite

-GPU:Gigabyte 3070

-RAM: 32gb Corsair vengeance rgb pro(4x8)

-Nvme M.2SSD 1TB crucial p5 plus

-CPU cooling: Nzxt kraken x53

-Fans are lian li Uni fans

[Nicksplitter]

Nvm problem solved I’m just a moron who didn’t set his mb 8 pin enough

[BiotechBen]

I will tell you, expect future problems with your vengeance RAM and Ryzen CPU