pc no signal

Hello guys, I have this problem for like two days and I´ve already tried a few fixes but it didn´t help me out. A few months ago, I had the problem that my PC randomly turned off and then back on several times a day (sometimes one of my ram sticks didn´t light up after this). The event viewer...

Hello. Few days ago my pc started to have weird pixelated crash while idling or doing nothing on PC. I restarted it and everything is ok again. Recently, when I wake it up from sleep, the same things happened. When I restart it, the pc runs but have no display. I have done several steps to...