Xbox automatically shut down when playing games or randomly

[Plssineedanswers]

I have this issue and it started just now, my Xbox is not overheating no indication or sign of overheating and it shut down when I started a game or randomly, the power brick is just new how to fix this? The auto-off is disabled on option.

 

[jadonv11]

If it's a new brick, then it might be an internal power issue at the connection point.