I'm new to pc's and pc gaming in general and just recently put together a system. I also just upgraded my gpu from a Gigabyte Radeon 590 to a Gigabyte Aorus 2070 Super. I then started playing Shadow of the Tomb Raider. After playing for a good while I left it on the pause screen for a moment and when I came back the game had shut down and pc restarted. Ever since I've tried to launch the game low or high settings it launches Steam and the start menu for the game then when I click to launch the game my internet disconnects and my cursor freezes and the rest of the system freezes. The only way I am able to get back going again is to press the reset button on my tower. Battlefield V on the other hand loads Origin and then the system just simply crashes. I am able to play games like Modern Warfare, Borderlands 3, Fortnite and just about any other game I so choose with no problems. Any and all help would be greatly appreciated. Being a new pc user and having paid for these games I would really like to get this resolved.