Question HELP cant get a display from my pc from any gpu.

[jake88]

Hello thanks for any input,I have my pc which 1 day stopped displaying video from my gpu.when I connect to my motherboard the screen is fine.i tried another gpu on the motherboard that didn't work.reset cmos didn't work,even reformatted pc for the he'll of it and didn't work.so I put in a new motherboard and I'm getting the same problem..any ideas what this can be ?my only other guess would be power supply unit,but my gpu looks like it's getting power because the name is lit up.
Win 11
Motherboard asrock B760m pro wifi
Cpu 12th gen i7-12700k
Ram 32gb
Gpu is radeon 6800xt merc.

 

[KingLoki]

PSU wattage?

 

[jake88]

Its a 700w but it's been fine for the last 2 years

 

[jake88]

Any professional pc technicians that can chime in please?I'm stuck