I want advice for what i should i look out for when buying a used gpu. The seller tests it and shows me that it boots and installs the driver. What can i do to assure that i am buying something that can last for at least 1.5 years. Overclocking is not an option or running a benchmark. Because i bought a gtx 590 from the seller and while testing when he saw the msi komluster. He was not happy. The gtx 590 is working just fine and i think it had been 6 months since i bought it.