Maintenance and Service Guide
Table 2-7 Special keys and their descriptions (continued)
Component Description
(5) num lock key Alternates between the navigational and numeric functions on
the integrated numeric keypad.
(6) Integrated numeric keypad A separate keypad to the right of the alphabet keyboard. When
num lock is pressed, the keypad can be used like an external
numeric keypad.
NOTE: If the keypad function is active when the computer is
turned o, that function is reinstated when the computer is
turned back on.
Bottom
Use the illustration and table to identify the bottom component.
Table 2-8 Bottom component and its description
Component Description
Vent Enables airow to cool internal components.
NOTE: The computer fan starts up automatically to cool internal
components and prevent overheating. It is normal for the internal fan to
cycle on and o during routine operation.
Rear
Use the illustration and table to identify the component on the rear of the computer.
12 Chapter 2 Components