Function key
f9
f10
f11
f12
Locating system information
Important system information is located on the back of the computer. You may need the information when
travelling internationally or when you contact support:
(1): Serial number
(2): Product number
(3): Model number
(4): Warranty period
Icon
Description
Decreases speaker volume incrementally while you hold down the key.
Increases speaker volume incrementally while you hold down the key.
Decreases the screen brightness incrementally as long as you hold down the key.
Increases the screen brightness incrementally as long as you hold down the key.
Locating system information
9