Questions:
- Why GPU0 has PCI 1.0?
It's in fact the hardware ID of your PCI slot they're numbered like this. slot 1 is 1:0, slot 2 is 2:0, you probably jumped one slot to make the card fit on the motherboard.
And what that "1"at end mean?
The "failed" share amount, when you submit a share to the pool sometimes it fail because of computation error or delay.