PC starts but screen is black and mobo displays d6 and 5 beeps

My mobo is an EVGA z370 FTW

I think the psu might be failing but not sure?

I'm not sure exactly what the codes mean.

Both the gpu and cpu are pretty new. I built the pc in 2018 though.

Also it displays A0 after it's done with the d6 and beeps.
I did try to reset the bios.
 
Thanks for any help anyone can give.