Question my pc keeps crashing

[dave.v2]

when i'm playing intensive games like rdr2 or other less intensive games for a long time my monitor turns off the fans go to max power and speed and i can still hear the audio and i can still talk on discord ect ive dusted my pc made sure the cables where connected an i don't know what else to do help plz

 

[DSzymborski]

Let's start with the full specs of the build, including the exact power supply.

 

[dave.v2]

Let's start with the full specs of the build, including the exact power supply.

its a ryzen 5 3600 stock cooler
ASUS TUF GAMING B450-PLUS II
ASUS DUAL RTX2060 O6G EVO
TEAMGROUP 16GB 2X8 D4 3600 VZ GRA
IPSG 650W BR SEMI ATX

 

[DSzymborski]

The low-quality, group-regulated power supply would be the first thing to check, by swapping in something of better quality.

 

[dave.v2]

The low-quality, group-regulated power supply would be the first thing to check, by swapping in something of better quality.

would this be a better power supply ?
Corsair CX650M 650 Watt 80 Plus Bronze ATX Semi-Modular Power Supply

 

[DSzymborski]

would this be a better power supply ?
Corsair CX650M 650 Watt 80 Plus Bronze ATX Semi-Modular Power Supply

That's a decent budget PSU. It's a good purchase, whether or not it resolves the issue, since it's of significantly better quality than the current one.