System:
OS: Windows 10 (fully up to date)
BIOs: Latest.
Mobo: Asrock B450 Pro4.
CPU: Ryzen 5900x.
Cooler: Standard Wraith AMD RGB.
Ram: 64GB 3000MHz CL16 Corsair RGB.
GPU: MSI RTX 2070.
PSU: MWE Gold Coolermaster 750W
Storage: P1 Crucial 500GB M.2, a Generic 4TB HDD.
Software that was running: FiveM (GTA V), Team speak, Discord, Chrome (about 13 tabs), and task manager.
Things I've tried: Unhooking everything besides CPU and 1 stick of Ram, Pulling out Cmos battery for 6 hours (just incase), unplugging from the wall for many hours, reseating the CPU, tested both sticks of Ram.
So, I was playing GTA V and suddenly my screen went black, my PC had completely booted down, it had been running a bit slow over the past few days but I thought it was cause of the newest windows update, now when I press power (after unplugging from the wall and plugging back in) it will flicker on for a split second, RGB and all, then it instantly shuts back off before post or anything.
There is a click now which I believe is the relay switch for the power supply clicking on and then off everytime I try to boot it.
I don't have a multimeeter sadly so I can't test the PSU as far as I know anyways.
Any ideas on why it would randomly so this? Or any ideas on things I could test to see what the problem is?