Same here. No issues with my 270 CF. Standby works as intended. You can always turn off that feature by disabling monitor sleep and using system standby instead. Problem solved. Hell, Nvidia doesnt even have this feature in any implementation state. When it's working it beats any Nvidia GPU in performance per watt in this off state, by an order of magnitude! Nvidia has been lacking this important feature since 2012! And that major con still exists in their 2nd revision Maxwell arch. The more GPUs in your rig, the bigger power savings become! Maybe Pascal will have it.
Speaking of drivers, right now I am having more issues with my Kepler GPU. First, Adaptive Vsync doesnt seem to work in FC4, and DSR isnt working thru CP, unless I use Geforce Experience app.
Bad drivers, lmao. Don't make AMD evil, and a saint of Nvidia. This is just not true.