So I have this issue that after 4,-5 hours of Iracing in my 3080ti, temps are beyond fine btw, the system justs power off then attempts to reboot 3 times. Resulting meeting me in the windows blue screen with the options of advanced repair or restart computer. I have an 850 watt EVGA Supernova G6 PSU which is only 4 months old and the motherboard is in MSI MPG z590 carbon Wi-Fi same age as PSU. I7-17000k @ 4.9. Reduced to 4.8 still same issue. Any ideas? I know it's either the graphics card the PSU or the motherboard. Also I didn't style a new system Drive. A wd sn850 black 1 TB about 2 months ago. The issue started showing itself last weekend.