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