It seems that the Green Goblin has changed its mind about the strange case of the exploding GTX 590 card.
SweClockers ran a video of Nvidia's GTX 590 card exploding in its lab. Nvidia's first response was that it only happened if a machine was over voltaged and running an elderly bios. Nvidia said that a few press reports on GTX 590 boards dying were caused by unsafe overvoltaging (as high as 1.2V vs. default voltage of 0.91 to 0.96V), and using older drivers that have less overcurrent protection.
Rest assured that GTX 590 operates reliably at default voltages, and our 267.84 launch drivers provide additional levels of protection. Customers on Overclockers seems to indicate that the issue could be more widespread than first thought.
Now Nvidia says that its engineering team just completed work on a BIOS that is intended to prevent future GTX590 explosions. However there is no word when the fix will come out. Nvidia has also said that additional warranty problems relating to exploding GTX 590 cards will be dealt with by the manufacturer who shipped you the card.
More over at Kitguru.