I have recently bought an "open box" GTX Asus Dual 1060 3gb off of ebay, after receiving it, I quickly inspected its conditions and it seemed pretty much "new", it almost had no dust, scratches or any damage. I connected the gpu to the computer and installed the required drivers from the official page. Got artifacts followed by a crash after 10minutes, thought Its because I did not restart after installing the drivers. All good, restarted, played a game, thought I should check the scores on Unigine Heaven, I made about 4,5 runs. And on about the 5th run, I got artifacts followed by a freeze, kinda scared. I restarted the PC and absolutely nothing, black screen. couple of times and still the same. I kept trying till I got a signal with artifacts, they do not appear immediately but sometime after the loading screen. I thought it might be the drivers, i reinstalled the drivers and restarted the PC, same thing, black screen no signal. couple of tries of shutting down and powering on. it finally came back to life, no artifacts. I tried running a game and it froze after 2minutes. the GPU either does not give a signal, or runs with artifacts. Fans are running and it has power on indicator.
I have attached a video showing the kind of artifacts I'm getting, its on a black image to show the artifacts clearly.
What do you guys think I should do, is this fixable? Extremely sad and disappointed since it feels like I was scammed for my hard earned money.
Contacting the seller is kind of tough because I'm not in the states currently anymore.
Edit: Sometimes screen does not turn on but this comes up (image below).
Ryzen 7 1700
G.skill 16GB 3200
Samsung EVO 960 250gb
Asus TUF B350M