The card is no more in the computer. Its not responding. Does the card expire too. I have reinstalled lots of times but still no show. Has anybody faced this issue before, How will I know if the card is dead or damaged
Make sure it is properly seated in the PCI-e Slot. If there is any movement on the breakout cable (Frequent cable connect/disconnet) over time it can overpower a poorly secured card.
After that, you could try uninstalling. If on your next boot, it notices the hardware, the card is probably fine.
I would also try moving to a different PCI-E slot if available on your MOBO.
I don't know what type of computer you are using, but we have used literally hundreds of these. 3 times, on a very specific motherboard (Asus P5KPL-CM... junk by today's standards) I have seen the PCI slot itself stop functioning. Yes this is a motherboard issues, but the symptom was a non-functioning Intensity Pro.