Question Pc shutting down while gaming

[Gravation]

For some random reason my PC randomly shuts down during gaming, I can use msi kombuster and it runs fine for 7+ hours but 2 hours on any game it will completely reboot without any prompt or warning, stress tests do nothing and my PC stays stable but once gaming it just turns off. I've tried completely reinstalling wondows 10 and it worked for about a year but now its back to doing the same thing, i used windows defender to offline scan for viruses and even made sure everything in the computer was plugged in hardware wise.

my specs:
I5-9600k (no oc)
RX 580 (8gb)
2 x 8gb 3000MHz geil ram
Z370 Aurus Ultra Gaming 2.0
1tb 7.2k HDD
120mm liquid cooler
4 fans
600w EVGA power supply

 

[Diddly]

check you event viewer logs and minidumps to see if that provides any clues

 

[Gravation]

there seems to be a lot of Kernel-power errors

 

[drivinfast247]

Exact model of PSU?

 

[Gravation]

I’m honestly not sure how to find that all I know is that it’s an evga 600w 80+

 

[drivinfast247]

Without knowing the exact model we can only assume it's a low end model and giving you problems.

What are your temps. while gaming? Both CPU and GPU.

 

[Gravation]

i can tell that temps aren’t the problem because I tested furmark and a cpu burner for an hour straight and they maxed at 85 gpu under full load with no settings on the fans and I think around 70 or 80 cpu

 

[Gravation]

It seems to happen a lot during mw2 remaster but not at all when benchmarking or stress testing