The green lights located above the keyboard indicate the following:
Keyboard Status Lights
Turns on when the numeric keypad is enabled
Turns on when the uppercase letter function is enabled
Turns on when the scroll lock function is enabled
Microphone
Record audio with the internal microphone.
Device Status Lights
•The 
light turns on when the computer is turned on.
•The 
light turns on when the computer reads or writes data.
•The 
light turns on steadily or blinks when the computer is in a power management mode. It also blinks to indicate battery charge status.
If the computer is connected to an electrical outlet, the 
light operates as follows:
¡Flashing green: The battery is fully charged.
¡Solid green: The battery is charging.
If the computer is running on a battery, the 
light operates as follows:
¡Off: The battery is adequately charged.
¡Flashing orange: The battery charge is low.
¡Solid orange: The battery charge is critically low.
NOTICE: To avoid data loss, never turn off the computer while the 
light is flashing.