Gpu/power display problem

[Sugar gay]

Hello I had been having this problem with my graphics card (I think this is the cause). Basically when I was running games on my pc my monitor randomly would go black and the pc would try to restart itself, my graphics card (fans still spinning) would make an electric cutting out sound and the LED would cut out. The LED would then turn on only to be cut off again. The cycle repeated like this until I turned the power of with the psu. I tried doing downgrading the driver and that seemed to take care of the restarting problem. Except I was getting freezes in games. After a while I installed a 2 tb hard drive and unplugged the cable to the gpu, when I plugged it in again I’m guesing I used to much force because when I started the pc the graphics cards LED didn’t even turn on. I reinstalled the graphics card and it worked but I can’t remember what happened after that. One day after not using my pc for a bit of time I decided to download a game, after downloading I played for about fifteen minutes and then it did the restarting thing. I turned of the psu and tried to restart the pc but this time I couldn’t get to the home screen before it restarted. And when I tried again didn’t even turn on. I have tried reinstalling the graphics card like before but it leads to the same result, as in those three restarts. Any ideas? I have three culprits gpu psu and mobo.

 

Asrock x470 master sli (3months old)

 

rx 580 used before (2+ years old)

 

psu be quiet 500w 80+ silver (3 months old)