I recently bought a couple games on the steam sale. The issue I have happened first with Xcom 2, and just now with Wolcen: Lords of Mayhem. I'd for example try to create a character in Wolcen, then my PC just restarts itself. I moved one of my soldiers in Xcom, and the PC did the same. CPU is at 35-40 degrees, GPU at 25/40 (idle and gaming), and I ran the Windows Memory Diagnostic to test for bad ram. Windows event viewer shows that the crash is Event 41, so that's sudden loss of power. How can I test my PSU, or might something else be wrong?
I have an Antec TruePower 750W PSU