Hardware Lights Top: Lights 1 Num lock light On: Num lock or the internal keypad is on. 2 Caps lock light On: Caps lock is on. 3 Mute light On: Volume is muted. 4 Wireless device light (available on select models) On: An optional internal wireless device is turned on. 5 Battery light On: The notebook is receiving adequate external power. ■ On amber: A battery pack is charging. ■ On green: A battery pack is fully charged. ■ Flashing: A battery pack is malfunctioning and may need to be replaced. 6 IDE (Integrated Drive Electronics) drive light On: The internal hard drive or optical drive is being accessed. 7 Power/standby light On: Notebook is turned on. Flashing: Notebook is in Standby.
2–6 Startup and Reference Guide—Part 2