PC shuts down completely when gaming

[FatPac]

I've had this issue where my pc will shut down when playing games like street fighter 6 and guilty gear strive and other intensive games. The computer shuts down and won't turn back on unless I turn off the power supply for a few seconds and turn it back on. So far I've changed pretty much my entire build I've tried 2 different power supplies got a new processor, ram, case and graphics card. The only thing I haven't changed so far is my 3 drives 1 nvme 1 ssd and 1 mechanical HDD yet issue still persists. I've ran a few stress tests and so far the only time it seems to turn off is when I stress my graphics card, I've provided a reading from occt psu test below. While gaming, especially on more medium intensity titles I've monitored the temperatures and it would turn off as low as 55 degrees at times so I don't believe its an overheating issue but I could be wrong. Any assistance would be greatly appreciated and any more details needed would be provided quickly.

 

Specs: 

AMD ryzen 5 3600

MSI b450 gaming PLUS

MSI Radeon RX 6650xt mech 2x 8G (driver version 23.4.3) 

EVGA 500BR (evga supernova 750W as a backup)

Silicone power 32 GB DDR4 ram

Sabrent rocket 512gb nvme

samsung 850 EVO 1tb sata ssd

Western digital 1tb 5200rpm HDD

BIOS: H. E0

 

 

[Somerandomtechyboi]

1 hour ago, FatPac said:

EVGA 500BR (evga supernova 750W as a backup)

Both of these psus have the same issue?

[FatPac]

8 minutes ago, Somerandomtechyboi said:

Both of these psus have the same issue?

Yes I'm experiencing the exact same issue with both psus

[Whatisthis]

The symptom is usually a psu issue. Could be a power issue with the house itself. To see if it is something with the power coming from the wall take the rig to a friends house or get a line conditioner or UPS. It’s rare, but dirty power can cause a psu to trip especially under load.