Can't hurt to have a spare card.
I have a second card installed, an old Dlink DGE-530T. It's dedicated exclusively to my Hyper-V virtual machines.
I really don't pay it much mind, but if I needed to, I could always switch over in a pinch.
Funny I have the same NIC as you integrated on what I presume is still the same MoBo as you and it has never glitched.
Of course, I just use whatever driver Microsoft deems suitable and never bother with any of that "Killer E2200" software package.