Question Game disconnects PC from display when setting graphics highest.

Bazzlebrush88

Reputable
Jun 7, 2019
82
6
4,535
My display randomly disconnects (no hdmi signal found) during a game after altering graphics settings to ultra and I can't see anything unless I reboot my system.
Why's this happening. So for example; game is running fine. I go and set settings to maximum and then the display goes black and my TV says 'no display found' - as if I've unplugged HDMI cable - and I can't get back to the game or desktop or anything unless I reboot my PC.
Aybody know why this is happening. Cheers for the help in advance.

MSI mortar max MOBO
HyperX fury DDR4 RAM - 16gb
Ryzen 7 2700x
Nvidea GTX 1080ti 11GB

600W 80+ POWER SUPPLY