I got a new pc built but when I play harder to run games the pc crashes and a white light appears on the motherboard.

[MrBlobbyWobby]

If I start to run a harder game like Marvel Rivals or Doom the pc will crash after 20 minutes. The screen will go black and a white light would appear on the motherboard, and the monitors will not turn on until I turn off the pc and turn it back on. 

Pc Part List- https://pcpartpicker.com/list/kyHq8Q

[Landvader07]

3 hours ago, MrBlobbyWobby said:

If I start to run a harder game like Marvel Rivals or Doom the pc will crash after 20 minutes. The screen will go black and a white light would appear on the motherboard, and the monitors will not turn on until I turn off the pc and turn it back on. 

Pc Part List- https://pcpartpicker.com/list/kyHq8Q

Try ddu and reinstall your gpu drivers (ddu uninstalls your gpu drivers) if that doesn't work then your graphics card is toast and you should rma (warranty repair) or buy a new one if the warranty ran out or you don't have one 

https://www.guru3d.com/download/display-driver-uninstaller-download/ link to download ddu