Power Supply Failure?

I was playing on my VR today and then my PC just randomly shut off and started up again. I checked event viewer, nothing. I checked reliablilty report, again nothing. I thought it may be the power supply so I ran a cpu stress test and a gpu stress test to see if it would turn off again, nothing. Could it be my... show more I was playing on my VR today and then my PC just randomly shut off and started up again. I checked event viewer, nothing. I checked reliablilty report, again nothing. I thought it may be the power supply so I ran a cpu stress test and a gpu stress test to see if it would turn off again, nothing.
Could it be my power supply or could it just be a random 1 time thing?

PC specs
TUF h310M-Plus Gaming
GTX 1060 6GB
I7 8700
2x8GB Corsair RGB RAM @ 2666
1 SATA SSD
2x HDDs
VS 450 Corsair PSU
Update: Computer is a year old*
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