Computer screen randomly goes black

Jun 2, 2018
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Hello,

So after I have searched for a solution and found none, I decided to ask here. My computer’s screen turns black at random times lately, mainly when playing video games/ sometimes when watching videos on youtube etc.

When the screen goes black, I keep hearing the sound for like 3 seconds then it stops, and I can still press the numpad and the keybord will light up, indicating that the motherboard is still running (I think).

Changing cable to a different type (currently HDMI) doesnt help, and changing to a different screen doesnt help either.

I tried to test my GPUs hardware and software with some programs, but it always turns out just fine.

I am really lost.

Thank you in advance.