I don't know if this applies to Gainward, but in the electronics company I used to work for, a "golden sample" was one that was sent to a prospective customer for testing so that hopefully they would become a regular customer. If the same does apply for Gainward, then your "golden sample" card may have been put through its paces (including stress-testing) for a long time before you got your hands on it, which might explain why it died so soon. Golden samples are often sold on to customers as new after they have been played with by these companies.
However, if Gainward mean something different by "golden sample" then please accept my apologies.
Fatal Error #449: Unable to process the "Go to Hell" command specified.