So, I just built a pc, and yesterday I was playing pubg for a few hours, then when I was done playing, green and blue lines appeared on the monitor, and my computer froze. I restarted computer, but once it loaded up, the blue and green lines appaeared right away and the computer froze. I forced it off with the power button, then turned it back on, and managed to type in my password and get to the homescreen, then for some reason I opened task manager, but right after doing it, the blue and green lines appeared, then the screen went black, went back to the homescreen with green and blue lines, then it went black again, but the task manager tab appeared over the black screen, and it said it wasn't responding, so I just turned the pc off, and asked for help on pcmasterrace and buildapc (I forgot about this subreddit), then I went to bed. Today, I realized I made a huge mistake when building my first pc. I accidently put two fans into he case that were facing outwards, so it was blow...