Question Monitor loses signal from pc

[The_ducc]

I recently got a cyberpower pc, it has ryzen 2600 six core processor and an AMD Rx-580. The pc was working fine when it suddenly wouldnt send a signal to the monitor, i reseated the RAM and it worked, until it happened again so i did a hard reset which worked, and just now in the middle of a csgo match, it lost signal to the pc. Everything still runs except the monitor gets no signal, the monitor is also fairly new and I want to know why and how to fix this from happening anymore.

 

[rgd1101]

make and model of the psu?

 

[The_ducc]

make and model of the psu?

I'm not very tech savvy, can you explain what im looking for or where i can find it?