Specs:
i7-9700k
EVGA 2080super Black
MSi MPG Z390 Gaming Plus
CX750M
Samsung Evo 860
Corsair Vengeance 2x8gb sticks
Windows 10 Build 17763
Basically whenever PC is under load in-game my PC will crash or lose power and restart, however whenever I'm stress testing under different settings the PC seems to be fine, as well as during normal usage.
I've tried just about every trouble shooting option that I could. Updated chipset drivers, updated bios to latest, tried different clock speeds on cpu, replaced PSU, replaced sata cables, just about anything I can think of under the sun.
At this point I have no idea how to troubleshoot this or how to tell what part could be bad. Any help is greatly appreciated.