A few different people have done tests to verify whether GPUs used for eth mining took any damage from doing so, and haven't managed to find any evidence that i

A few different people have done tests to verify whether GPUs used for eth mining took any damage from doing so, and haven't managed to find any evidence that it damages the card more than regular use. Running cards under severe load nonstop for years could potentially shorten their lifespan by a tiny bit due to electromigration or wear out the fans, but that's about it. Of course, any used GPU could be defective, so you need to be careful buying one no matter what. https://www.youtube.com/watch?v=hKqVvXTanzI https://www.youtube.com/watch?v=hKqVvXTanzI https://youtu.be/3WWfj7RF_z8?t=381 https://youtu.be/3WWfj7RF_z8?t=381