Question PC SHUT DOWN ON ITS OWN

[Armanddd]

PSU 700W
Ryzen 7 5700x
8x2 DDR4 Ram
Rx 570 VGA
GIGABYTE B450M Gaming

My screen likes to shut down on its own and i cant do anything about it, i just have to restart the pc using the power button. sometimes when i restart my pc my gpu driver just disappear and i have to reinstall it. anyone know how to fix this?

 

[rgd1101]

brand and model of the 700w psu?

 

[Armanddd]

DK PREMIUM PS-700AX 80+ Bronze