Short Summary: My desktop unexpectedly turns off (note, does not shut down, but simply turns off), usually while I am playing high intensity games, like Playerunknown Battlegrounds. To circumvent this problem, I bought and installed a new power supply (750W). The issue happens less frequently, but has still happened twice since installing the new power supply a couple weeks ago. There are no beeps sounding when I boot, and there are no error messages or warnings given.
See attached DxDiag.txt.
I appreciate any suggestions for how to combat this. Please let me know what I can do to assist in this process. Thanks.