Exactly.
In the future, for anyone who might be interested, this is the "universal" guide that can be used:
http://forums.guru3d.com/showthread.php?t=377158
To add upcoming cards, the Device ID can be found on GPUZ. So instead of 17C8 for 980 ti, just grab ID from GPUZ and add it on the nv4_dispi as mentioned above by Elmor.