When the game starts, the PC restarts. How to fix the problem?

Question

Computers

Good afternoon! When the game starts, the PC restarts. I reinstalled the system, the PC was cleaned of dust, the drivers were updated, the system was checked for memory - everything is fine. In idle, the temperature of the devices is 30 degrees, in the game 60. That is. there is no overheating. The problem started when RDR2 passed, and at the very end of the credits, the computer rebooted. Almost all games cause PC restart except CS:GO, Rome Total War...

PC specs:
win10
;hard drive 2tb seagate st2000dm001 sata-iii barracuda 7200.12 7200rpm,64mb, ssd 250gb samsung sata iii 750 evo
motherboard msi h110m pro-vh h110
cpu i5-6600 oem 3.3ghz
bp aerocool vx 500 500w
graphics card gtx nvidia 2060rtx ddr4
memory 16gb 2400mhz

hope you can help...

Answer 1

Most likely this is a power supply, check the drawdowns on the 12 volt line, you can see it in occt