Computer reboots when playing games

[TWTom]

Specs

Processer - i7-3770k

Ram - Corsair 8gb

GPU - GTX 980ti

PSU - 750w

OS - Windows 10

 

Currently I am trying to play Total War Warhammer 2, every time I start a campaign after the first end turn my whole pc will reboot. this happens even when I have just turned it on. I have been using CPUID HWmoniter to check what is going on. My pc is not overheating, im not using up all of my RAM or disk space while playing and my graphics card is up to date. I have tried uninstalling and reinstalling my graphics cards, uninstalled and reinstalled steam as well as my game. plus I have also deleted all mods attached to the game and the vanilla game still crashes. So now im rather stuck on what else to do. If anyone knows what my problem is please let me know :)

[Nomad]

Check if you have issues with any of these overheating, insufficient power supply, faulty GPU/CPU, outdated drivers, malware, corrupted files, RAM issues, or motherboard and PSU defects.

[uptrendfinancialsignal]

It may well be that you have a weak power supply on your computer. The power supply might not sufficient to adequately power your graphics card and the processor you are going to use while gaming. It may require you to change to a better power source.