I have the Dell Inspiron 5675 and recently upgraded from a 1600x900 monitor to 3 1920x1080 24" monitors.
Whenever I try to play a game, the monitors start to flicker and send the game to each monitor then the computer crashes and restarts.

I believe I have figured out the cause to be 2 issues but I am unsure which is the actual cause.
It is either the Graphics Card or the Power Supply.

Specs are all OEM. I have the AMD Radeon RX 560 (2GB) Graphics card.