So the other day, I saw someone had listed a Zotac GTX 1080 AMP edition on Ebay for £145, which is over £100 cheaper than any others, but there was a catch: they had listed it as not working/for parts. In the description, they said they had won it at work, but couldn't test it because they didn't have two 8-pin connectors. I knew there was a very good chance that it wouldn't work, but I decided it was worth a shot, so I decided to buy it. It came a few days later, and I plugged it in and everything seemed to be working fine: I booted to Windows, but then suddenly the display turned off and it stopped working. I shut down the pc and turned it on again, and from that point it wouldn't output a display at all. I decided to try and troubleshoot it the next day.
Before I installed the 1080, I uninstalled all of the previous Nvidia drivers I had for my 1650 super (which works with the computer completely fine) and then I put in the gtx 1080. This time, it again booted to Windows, but it obviously had no driver. There was also quite a lot of artefacting on the screen, which I have shown in a picture attached. I tried to install a driver, first trying to download the driver directly (I tried the most recent driver and the previous one) and also installing it through GeForce Experience. All of these didn't actually install the driver, even though they did finish the install process. I then checked device manager, and the GTX 1080 had an error code 43 "Windows has stopped this device because it has reported problems." I also then looked in event viewer and I have shown some screenshots of what I found in Event viewer.
Since my computer works fine with the 1650 super, I know the issue has something to do with the graphics card. I have a Corsair CV550 power supply to power a ryzen 5 1600 and a few fans, a sata ssd and the graphics card, which should be fine, and the graphics card has an indicator light by the 8 pins then was solid green, indicating that the power was supplied correctly. The troubleshooting steps I've tried have been very basic, just trying different display ports on the graphics card and also hdmi, but I think the issue is to do with trying to install the driver. I have also tried disabling the fact that drivers must be signed to be installed, but this did not make a difference either. Any suggestions would be great, and if I am not able to solve it I will try and cut my losses by posting it on ebay, and I will post here if I do that in case anyone else wants to try and fix this card (but it will be UK only)