I have Windows 8.1 with an Asus H87M-Plus motherboard. In the bottom-right hand corner of the screen there is a tab that if you click on it will bring up some power saving options (Auto Mode, High Performance Mode, Power Saving Mode, Away Mode). When it hides itself it is difficult to see. However, the computer is connected to a large LCD and if I'm playing a video I can see a tiny little white spot in the corner.
I think these tabs are coming from Asus AI Suite 3 as the icons look the same as when I go to the EPU tab in that utility. However, I see no options or settings to remove them in the utility. Maybe somewhere in the bios?
I spent 20 minutes waiting for tech support before I gave up.