Sometimes my monitor gets no signal

Sep 3, 2018
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Sometimes when I watch a movie or something on youtube my monitor shuts down and I get a message "hdmi no signal". This didn't happened once while gaming, only while watching something. The cpu and gpu temperatures are good so I don't know what is the issue. Btw when I get that message and my monitor turns black I can hear a strange noise inside my pc witch is not normal. Please help
 
Sep 3, 2018
4
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10




How to check the temperature when the screen is black and I can't do a thing after it ?
 
Sep 3, 2018
4
0
10

Would you mind sending me a link to it or explaining the process ?