Question PC randomly shuts off

Jan 18, 2021
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My system randomly turned off earlier today just after I finished rendering something, however all the fans were still spinning and the light indicators were on.

I then rebooted and unfortunately I can barely make it a minute before my monitor goes blank and it reboots itsself.

I've tried pretty much every step out there, including reset CMOS, reseat RAM, check all cables, I even rebuilt the entire system to make sure. I've replaced my PSU too, none of which has fixed anything.

Could this be a CPU issue, as my system did crash after load?

Specs:
Ryzen 5 2600X
ASUS RX 580
Corsair 3000MHz 16GB RAM
MSI B450 Tomahawk MAX