HP Notebook Series Hardware Manual page 16

Hardware Components
Component
1
Caps lock light
2
Num lock light
3
IDE (Integrated Drive
Electronics) light; also
referred to as hard
drive/optical drive activity
light
4
Optical disk drive light
5
5-in-1 Digital Media slot light
(select models)
*For information about using num lock, the internal keypad, or an external
keypad, see Chapter 2,
1–8
Description
On: Caps lock is on.
On: Num lock or the internal
keypad is on.*
On: The internal hard drive or the
optical drive bay is being accessed.
On: The optical drive bay is being
accessed.
On: Slot is accessing an optional
digital media card.
"TouchPad and Keyboard."
Hardware Guide