Huh. Was playing PUBG just now, and everything was going smooth af. Great framerates, ~140 avg on Ultra settings. Fans kept changing RPM's and then all of a sudden -- shut down. No artifacts or stuttering. No warnings. Just boof. Is 600w not enough for one of these?
No overclocks. Not on the CPU, nor the GPU. Just plain, out of the box settings.
Which exact PSU do you have? They are pretty decent on power use. My card with 50% PL and 220Mhz/900Mhz clocks draws 230W (before the loss from converting from AC to DC).