The PSU is Corsair RM850 fully modular ATX power supply, and I added the other parts to the original post.
I thought that might be the main problem, but without display and without bios flashback I don't know how I would be able to update it.
I'm not sure if this is the right spot for this but, I just built a PC for the first time and I'll get power, but no peripherals will work (monitor, mouse, keyboard)
The motherboard came with a speaker but I've heard absolutely nothing from it. At this point, I've removed all components. GPU...