There must be something seriously wrong with your setup if you're killing all these cards. I don't know if you use shoddy PSUs or a shoddy motherboard or you simply haven't bothered to invest in cooling but even piece of crap cards don't have a 100% failure rate. Mining is hard on hardware, you have to invest in proper cooling and power.
Nope, 3 different setups. Good solid setups in fact, in different physical locations. Including my buddy it would be 4 different computers they have died in. They are junk cards. Same rig has 5850s in it now after those died as happy as they ever were. The sad truth is Visiontek let out a batch of complete crap, and should've never sold them. The cards received maximum cooling as well, and ran in the 65C arena under full load.
This is why I'm so outraged, it should be impossible for all of them to fail under these circumstances, but yet it happened. Clearly a serious problem with this batch of cards.