Most reputable websites offer buyer protection, meaning that if GPU is DOA or dies shortly after - you get your money back. Ebay simply takes the money away from the seller's account and gives it back to the buyer. Most miners will run GPU's at lower voltage because less electricity means less expenses. That means cards will work on very low temperatures. But even by default, I tried with my GPU - it steadies out at like 68 degrees in my garage and it mines like that day and night. Now.... what reduces lifespan of cards is humidity which causes oxidation, can be an issue if rigs are in a weird places. But at the same time if your average student has their PC in their rented room - then PC is in a humid area considering kitchen is a part of that room. So it's not like there's no risk, but it's rather low because cards can take years of abuse before they die. Some refuse to die, my rendering PC has a HD 7750 still rocking (CPU rendering, GPU is just there to have a monitor output). With current prices it's more than worth it to go for a used one. Using reputable websites that have buyer's protection makes your money safe - just make sure to plug in the card and run all the tests you can - like a full hour of stress testing at least. Even better, some benchmark on the loop because those have things that task different parts of the GPU and there's load differences that stresses the GPU more than constant 100%. When buying a used card there's only an asterisk of maybe needing to spend 10 bucks for replacement fans. That's it. Haven't bought a new GPU my self since 2005.

I bought it yesterday, they told me the previous owner did not use it for mining. I'll be running tests but all along it works fine. Its sealed so it has not been opened for repairs. Also I have 6 month warranty, guess I can trust them.

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yes im ^^