Computer is shutting down by itself

My computer is doing some random shutdowns, after some long gaming sessions on when games are alt tabbed.

It happened one time yesterday and one today, the computer shutdown it doesn't try to restart.
Seems like a force shutdown command is being executed.

On event viewer the only error event is an ID 6008. But there is no weird stuff happening before it.

I also downgraded my AMD driver thinking that could be the culprit but it did not solved the issue.