LordofShadows00

The only overclocks I have are on the GPU (+100 Core +500 Memory, which I've had for a few weeks now and it worked fine) and the XMP profile for RAM. The temperatures never went past 70C for both the CPU and the GPU according to MSI Afterburner and HWMonitor so it's not that either. After disabling the XMP profile it doesn't seem to shut down, but GPU usage in game (i tested AC:Origins since it always shuts down when trying to load a savegame) is all over the place an it maxes out at 95%. Also there appears to be some awful coil whine as soon as the game starts (coil whine.m4a). I really don't know what to think here. I'm still not convinced it's the power supply suddenly failing. Any help would be appreciated.

So today I installed a Ryzen 5 2600 with 16 GB DDR4 Corsair Vengeance on a B450 Aorus Elite motherboard into my PC and it started randomly shutting down after a few minutes in any game. After that I try pressing the power button to turn on and nothing happens until I reset the PSU switch. Another thing that happens if it's not a shut down is that my display turns off and GPU fans ramp up to 100%, forcing me to manually shut it down. I've never experienced this before and everything worked perfectly fine with my old components (i5 4690, H97 mobo and 12 GB DDR3) until today. Could it really be the power supply failing just now or is it something else? PC specs: CPU: AMD Ryzen 5 2600 RAM: Corsair Vengeance LPX 16 GB DDR4 3000 MHz GPU: GTX 1070 Zotac AMP Motherboard: B450 Aorus Elite PSU: Raidmax Cobra RX-600AE (600W 80+ Gold)