This means voltage control for reference 780s, Titans, and 690s! http://forums.guru3d.com/showthread.php?t=380513 Wizz's own review of a 690 which shows the voltage regulator. http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_690/4.html I am not able to try this as I am not with my rig and will not be until early October. However there seems to be confirmation of it working on a 690 in the first link I posted. I will be trying this as soon as I get home but wanted to see if any 690/titan owners wanted to play with this. This screenshot taken from another owner from the Guru Thread in the first link I posted.