Question Pc shuts off for no reason

[LaurentiuSop]

I was playing Rdr 2 then my pc shuts down randomly, when i try to restart it the screen is gliched and the pc restarts, finaly working. Can anyone help me because it happend in the past aswell with other games, even gta san andreas.

Specs:
Cpu: Amd Ryzen 3 1200
Gpu: Biostar Amd radeon Rx 560
Ram: biostar 16gb 3200mhz ram
Motherboard: Msi a320M-a pro max
Pc case: aqirys canopus

 

[rgd1101]

brand and model of the psu?

 

[LaurentiuSop]

brand and model of the psu?

Njoy woden 650w