Used Video Cards used for Mining

[crayzkirk]

Against my better judgement, I bought a used video card from eBay. It was part of a multi-card set that was used for mining. I know these cards can be abused however the price seemed right. $175 for an RX5700XT 8GB card seemed like taking a chance. I'm upgrading my old computer, Phenom II 965B to a Ryzen 5 5600X. Yeah, I usually upgrade to a prior generation because I don't need a new system. I tried the video card in my old PC and got a single beep. Removed it and put the old card back in and single beep. Pulled the PSU and replaced it, single beep.

There was no puff of magic smoke when I turned it on and my PSU has enough power for the card. I tried an old card and even an old PCI video card. It's stuck at the post. No display, no nothing.

Did I kill my old PC? I didn't want to try the used card in the new MB just in case something was bad. I've never heard of a bad video card killing a computer.

Ideas?

TIA,

CK