Question PC fans on, gpu not working, keyboard n mouse not lit up.

[rowenmcc]

Hi, so I just built my new pc and at first sight when you turn it on it looks like its working but when i go to set it up, nothing works, the gpu fans aren't on and my rgb keyboard and mouse aren't working, the display says no signal and I dont know what to do. I took out the gpu to see if I could spot it but no luck, idk what to do, please help.

 

[popatim]

Please list your parts with make and model #'s
Thank you.