MSI GT780DXR User Manual page 72

3-26
Quick Launch [Fn] Buttons
Use the [Fn] buttons on the keyboard to activate the specific applications or tools.
With the help of these quick launch buttons, users will be able to do work more efficiently.
+
User Defined
or
Windows Search
(optional)
+
ECO Engine
(Power Saving)
+
Webcam
+
WLAN (WiFi)
Press and hold the Fn button, and then press the F4 button to
launch the User Defined application.
Or, press and hold the Fn button, and then press the F4 button to
launch the Windows Search function.
Press and hold the Fn button, and then press the F5 button
repeatedly to switch among various power saving modes provided
by ECO Engine, or to turn this function off recurrently.
Press and hold the Fn button, and then press the F6 button to turn
the Webcam function on. Press again to turn it off.
Press and hold the Fn button, and then press the F8 button
repeatedly to turn the Wireless LAN (WiFi) function on or off
recurrently.