Motherboard lights up, but power button and fans unresponsive at all

[alhartl]

I have recently built my first new pc and I encountered a problem where my mother board light only comes on, but cpu and case fans do not spin. Ive not even been able to get the cpu fan to spin at all, because nothing is responsive. 
My specs are: 

mobo: b450 f strix 
cpu: ryzen 2700x 
ram: corsair vengeance 16 gigs 3000
psu: NZXT 550w bronze 
storage: 500 gb

 

I have tried searching and trying everything under the sun, by checking cpu power cord, checking ram slots, trying to jump the computer boot, checking if the cpu pins are bent, you name it. I really need help figuring this out, this is an expensive computer that Id like for it to work. Any help is appreciated and if you have more questions let me know!

[Lurick]

Do you have a GPU that you forgot to list?

The 2700X doesn't have any integrated graphics and the PC will fail to post without it.