Computer randomly freezing up and lose signal on TV but pc still running

[bladerunr10]

If I'm playing on my computer say fortnite... I can play the whole time no problems but once I exit and can be watching a movie it will freeze make a buzzing noise and then I loose signal to tv but pc is still running... seems to do it more after gaming any ideas?

 

[Kashimi]

Those are the signs of a failing GPU.

 

[bladerunr10]

]Can I fix without replacing? I just got new video card but it's still doing it thought it was that