New MOBO and CPU no signal to monitor

Hello

I upgraded my motherboard and CPU and after a long time trying to fit everything nicely in the case, I turned it on and we'll...this!

Tried both the MOBO and gpu ports, still nothing, along with a lot of noise from the AIO, but that's something I assume I can change in the bios.

Already tried changing the Ram around, checked the CPU if it sits correctly, gpu spins at start but then stops. Removed the Gpu, and tried without it, still no. Checked cables, all fine.

I haven't tried turning it on and pressing the Bios buttons, but my keyboard is a Bluetooth one, and even though I hooked it up with a type c cable, the MOBO won't recognize it.

Please tell me there's something simple I did wrong and that I didn't turn my PC into a hunk of scrap.

Specs:

MOBO:cvn B660i

Cpu: i5 12490f

Ram: 32gb 3600 corsair sticks

Psu: Cooler Master 650w gold

Gpu:Asus gtx3060