I mined ethereum and monero (via GPU on the old cryptonight algorithm) in 2017 and 2018 and I also procrastinate. So, that means I have a bunch of AMD video cards that I never got around to selling. I use an RX 580 and my wife uses an RX 480, both 8gb. We have a spare RX 480 8GB reference model as our shared backup.
The extra surplus consists of a pair of RX 570 4GB cards, one RX 560 4GB, two RX 550 2GB and two RX 460 2GB and a bunch of older stuff (R5 250s and 270s mostly). We've got three kids that game so some of those GPUs are in use but there are still about 10 extra GPUs in the house in total. I've also got a 550 Ti laying around that I bios modded to support UEFI, but I wouldn't want to use that for gaming at this point.
She stepped on the surge protector power button while the computer was on. I thought this was safe, but it was not.
The machine initially didn't turn on at all, and I had to mess with it a bunch for hours just to get power. It did turn on eventually but then wouldn't boot because the main OS SSD was fried (confirmed this on another system).
Then it just stopped turning on at all. I ended up getting a new PSU and decided to go with a new case and motherboard anyway since I didn't like the case and there were other issues leading me to believe the motherboard was on the way out.
Cost about $200, but I was able to rebuild it and it looks much better now and I have room to work if I need to swap out any parts later (previous case was a mini cube and I basically couldn't change anything without a lot of work).
My GTX260 is on permanent loan to in-laws lol. GTX 580 still works, but has to be downclocked on core/memory for stability - first/last time I touch a Zotac product on that note. Still, it's a working card, so it has value.
** ZOTAC GTX-1070 ** - sitting in a box, just in case I need it. I know I could sell it and it is unlikely that my RTX-3070 will die. But I still like to have a back up while the supply chains are so strained. If I knew I could buy a reasonable replacement, I would sell it. Then again - eventually the price of this older cards commanding big bucks will come down.