DRAM illuminated light.

Pc is failing to POST. Rgb lights to the fans and gpu and aio function. Fans spins. But no display. Also noticed mouse, headset, keyboard don’t get power. However if I plug my phone into the back it charges it. Have DRAM light illuminating orange on MB. Took out both sticks and reinserted. Still light. Tried only one stick. Still light. Tried all slots with only 1 stick at a time. Still light. Have reset cmos and switched out coin battery. I’m going crazy please help.

R7 5800x
Rtx 3080
TUF x570 plus