Hello,
I have a poweredge T630 - just arrived 2 weeks ago. We put a x700 nic in it. Win 2012 R2 (fresh install) didn't recognize the card so we downloaded the latest drivers 1.3.115.0 date of the drivers - 3/22/2016 - we downloaded it from Intel today. The card is then recognized and it showed 4 ports.
We tried plugging in a 10g cable and a transceiver on this nice. In network card properties it went from 4 ports down to two. So I checked in device manager and 2 of the ports (the ones we plugged in have this message - This device cannot start. (Code 10).
I have tried turning off the server and turning it back on.