What brand cards are having these failures? Is it one specific brand, like HIS, or are these failures over all brands? If those of you with failures could post your card's brand that would be helpful. I'd like to determine the circumstances behind these failures and the only way to do that is to catalog all the details.

Please post this info:

GPU Make & Model:
GPU BIOS version: (if you have it)
Motherboard Make/Model/BIOS:
Display Driver version used:
Failure under Crossfire?: (yes/no)
Other Details: (any notable details before/after the failures)

Those are just a few variables I could think of that would cause this problem. I'd like us to be able to distinguish between a GPU issue like a board defect, or an outside cause in these particular cases.