Firmware on Nexus 6.0.2 (2), steps that I have done:
Install OS Windows 2012R2
Install some win patches and MS office 2013
Install Win2012R2 Update 1
Insert Intel x540-t2 card and install driver pack v19.1 with DCA option
After I enabled on Nexus port fcoe and bind it to fcoe vsan - link on port is up, all seems like a good, but after 2-5 min server stop with BSOD, and this situation repeat till I shut down ports on Nexus