Ok so first of all I'm not sure if this is the correct place to post this because I don't know if this actually is related to the graphics card or not. So today I was playing csgo normally as always and then a lot of rainbow cubes appeared on my screen and it froze. I restarted my pc and there was all kinds of color distortion, rainbow effects and weird lines of color code text. I assumed my monitor died(it's a pretty old monitor). Later I connected my TV to my pc and it worked fine so I was sure the monitor broke. But after using my TV as my monitor for ~1hour I launched csgo again and within 2 minutes the exact same thing happened. Then I thought it has to be the graphics card. Than I connect my monitor again and boot the pc into safe mode to confirm it's the graphics card, but the rainbow effect was still there, except now it is not frozen and I could use my computer. Changing the resolution changes the rainbow effect so I am sure it's not the monitor. Safe mode doesn't fix it and the effect appears as soon as I boot the pc and on all output ports of the graphics card. Right now I have no idea what it could be or what to do. Any help is appreciated