... I put that inside the medium flat rate box without extra packaging. It could move freely inside. Even still, the card itself is cushion inside its anti-static bag and foam in box. I don't see how it could have been damaged in shipping.
I ran it at 1050mhz, 300 mem, 65% fan, low 70c temps
Fan spins but not video. Card doesn't even warm up after some minutes. atiflash doesn't detect the card. Anything I can try?
If you pack something, it should not make any sound when you shake it, always fill it up with something, cheap way is using newsletters (I always use the packing peanuts).
So the card got banged up inside the box, most likely the force of the banging moved the cooler (just a little bit), banging or at least re-applying the banging-force to the GPU itself. I would just RMA it, packing it so it doesn't make any sound inside the box, and when you get it back, sell it again.
Before, I bought a lot of hardware on Ebay and got a lot of banged up stuff in as the sellers didn't stuff the box up well. Newegg for example also ships stuff without filling up the box, they have A LOT of DOAs from that.