Lights
Item Component Function
(1) Power lights (2)
●
On: The computer is on.
●
Blinking: The computer is in the Sleep state (Windows
Vista) or in Standby (Windows XP).
●
Blinking rapidly: An AC adapter with a higher power rating
should be connected.
●
Off: The computer is off or in Hibernation.
(2) Wireless lights (2)
●
On: An integrated wireless device, such as a wireless local
area network (WLAN) device, a wireless wide-area network
(WWAN) device, and/or a Bluetooth device is turned on.
●
Off: All wireless devices are turned off.
(3) Caps lock light On: Caps lock is on.
(4) Num lock light On: Num lock is on or the embedded numeric keypad is enabled.
(5) Volume mute light (select models only)
●
Off: Computer sound is turned on.
●
On: Computer sound is turned off.
(6) Volume down light (select models only) Blinking: The volume scroll zone is being used to decrease
speaker volume.
(7) Volume up light (select models only) Blinking: The volume scroll zone is being used to increase
speaker volume.
(8) Battery light
●
Amber: A battery is charging.
●
Green: A battery is close to full charge capacity.
●
Blinking amber: A battery that is the only available power
source has reached a low battery level. When the battery
12 Chapter 2 External component identification
