Question pc restart issue

[Mair0n]

i have problem with my pc . When I turn on the system and start a game, the system restarts. It will be fixed after restarting once and i can play without problem . so whats the problem

gpu : asus rog strix 2080ti
cpu : intel core i7 12700k
ram : 4*8 gb trident z royal
motherboard : asus z690 tuf gaming

 

[rgd1101]

brand and model of the psu?

 

[Mair0n]

brand and model of the psu?

a local model called green .
1050w , platinum