[SOLVED] New PC keeps shutting down while gaming

Sep 20, 2019
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Just built a new PC and it worked for me for a day and now it is shutting down while playing demanding games such as Borderlands 3. While Playing the GPU and CPU are around 70C
My specs: MSI Mech 5700xt.
Ryzen 7 3700x stock cooler
Corsair LPX 3600 mhz Ram 16 gigs
MSI MPG X570 Gaming Plus
Gold Rated 650 Watt PSU
I was wondering if maybe 650 watt isnt enough and is causing a shutdown.
Or Needs a BIOS Update