gaming pc restarts

Im having a problem. I have run cinibench, 3dmark, prime 95. All temps are stable through gpu and cpu. Im using coretemp hwmonitor and amds own temperature controls and iobit performance monitor. asrock x570 taichi amd 3900x amd rx 5700 xt sapphire rgb seasonic 1000 watt gold psu 64 gb oloy rgb...