Question PC freezes after heavy load

[Nrindor]

Hello everyone, my PC freezes after heavy load like playing game or using unity. During the usage of the said programs there is no problem like freezing, increase in heat, frame drop or anything of that nature but after closing the program pc freezes and needs a restart after like 5 min. Usually first screen freezes then sound. At first i thought cause of the problem might be software or driver related but still happens after formatting the pc. I can't figure out why is this happening. Thanks eveyone for responding.

CPU AMD Ryzen 5 3600
Mother Board PRIME B450M-K
GPU RTX 2060 SUPER

 

[rgd1101]

brand and model of the psu?

 

[Nrindor]

Cooler Master MWE 700W 80+ Bronze V2 2xEPS 120mm