PC Random Turn Off Help

If anyone could help I would really appreciate it.

My pc will randomly power off while gaming and go completely dark. It used to be rare but now it happens in the first match on any game I play. Does anyone know how to resolve this issue, I have listed my pc specs below. GPU temp is around 80C when crashing.

My PC Specs are as follows:

GPU: AMD Radeon RX 5700 XT

CPU: Intel(R) Core(TM) i5-9600KF @ 3.70GHz 6 Cores

Motherboard: ASRock Z390 Phantom Gaming 4S-IB

RAM: 32gb

SSD: 225gb

HDD: 1tb

POWER SUPPLY: 600W