after checking website faq i noticed several mobos don’t work in the pci x1 slot. after the firmware update neither did mine so, I switched the card over to x8 slot on my evga and rebooted, the card shows up again but i had to uninstall drivers and put the new drivers on to keep up with the firmware update. back to work!
same story here, i’ve been using this card on an evga x58 sli board for over a year i believe and it shut down at lunch, no longer visible in my device manager. kind of sucks, no more video output from ae. About to contact support.