I think I've found the root cause. It was faulty PSU. Arranged a corsair 750w 80 gold psu and machine ran perfectly fine, temps were great. Gave the gigabyte p650b for rma. I think I'll sell my PSU and get a better one. Should not have cheaped out on PSU.
ryzen 5 3600
gigabyte b550 gaming x
gigabyte rtx 2070 super
gigabyte 256gb nvme ssd
gigabyte 650w psu
wd 1tb 7200
After few minutes after switching on, the display is cut off.
GPU, Cooler, Case fans are spinning fine, power btn led is on, all led's are on, no...