Pc black screens, flashes no signal after 3 minutes of play games I can easily run

Had this PC for a year, recently ran into problems with it crashing whenever I play a game after 3 minutest I've got high end everything and was always able to play games for 8 hours and above and now 3 minutes into the same games it will crash, the pc won't crash but the monitor will go black then flash no signal... I've cleaned it out, cleaned all the dust, made sure all the fans are working and it still does this... I don't know why
Reply to Raindo56
2 answers Last reply
More about black screens flashes signal minutes play games easily run
  1. Need full system specs, did you check temps while in a game? Try a clean Windows setup to rule out driver or other software issues? Test your video card in another computer, try another power supply?
    Reply to hang-the-9
  2. If you have an overclock set it back to factory defaults.
    Reply to Faye_K
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