Computer occasionally restarts itself when playing LoL?
A few months ago, I put a new graphics card into my computer. I noticed that occasionally, it would randomly restart itself. Then, I noticed that this only happens when I play League of Legends (Except for a single instance). I can play PUBG, Overwatch, G-Mod, etc just fine. I can type up documents, stream videos, etc. It ONLY happens when I play League of Legends. I only just now realized that it only happens when I play League. Yesterday I uninstalled and reinstalled it and toned down the graphics (From the highest possible quality to medium). In case this doesn't work, does anyone have any idea what the issue might be?