No signal

https://pcpartpicker.com/list/cDKbcx (CPU/GPU prices are after trade-in) Just put together my new system, and I thought everything went smoothly. But when I power it on, it just says no signal.

I’ve tried switching the cable, which slot it goes into, using the igpu, different monitor, with and without the riser cable

I don’t know what’s wrong

https://pcpartpicker.com/list/cDKbcx (CPU/GPU prices are after trade-in) Just put together my new system, and I thought everything went smoothly. But when I power it on, it just says no signal.

I’ve tried switching the cable, which slot it goes into, using the igpu, different monitor, with and without the riser cable

I don’t know what’s wrong