I've been having this issue only with D2, any other game is fine. Sometimes when I load in anywhere, inbetween orbit and the location (traveling in the ship), my computer will just die. All power to it goes out, and the power button won't turn it back on unless I unplug the PSU and plug it back in. I also recently got a BSOD but that could have just been a random fluke in the game. I'm running an R9 3900X (stock frequency) , 16GB of DDR4 @ 3600mHz CL 16, an RTX 2080ti (stable OC but still happens when stock), all on an ASUS ROX Strix X570-I Gaming MoBo. The PSU is 650 watts so it *shouldn't* be a power issue.