Screen goes black while playing games

Feb 1, 2019
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Hello,

I have been playing games on my pc for a while now, but lately when I am playing the screen goes black suddenly and I hear allot of distorted sounds in my headphones. This goes on for a couple of seconds and then the game resumes (I can hear the game in the headphones) but the display does not return, it stays black. If I Alt F4 out of the game I can hear the game stopping so it's clear that the computer still works. After I restart I hear one long beep and three short beeps and the display is still black. I have to close the computer by cutting the power directly from the source and only after that it starts up properly. My pc specs are : AMD FX 4300, 3.80GHZ. NVIDIA GEFORCE GTX 750TI 2GB. MOTHERBOARD GIGABYTE 970A-DS3P. 8 GB RAM 1333. WIN 10 X64. and I believe my psu is 450w.

Thank you