Question Monitor Goes Black While Pc Stays On

[KingKrush9997]

Whenever I am playing a came like Cs:Go or Stars Wars my monitor randomly goes black while my pc remains on. I can still hear the game or whatever I am doing on my pc. I tried making sure the cables are in all the way but that is all I could think of doing.
Specs:
AMD Ryzen 5 2600
Radeon Rx 590 Fatboy
Not Sure of Motherboard

 

[rgd1101]

make and model of the psu?
cpu/gpu temp during the game?