support.dell.com Introduction 1-5
NOTICE: Do not push objects into the air intake. Keep the opening free
from dust and other foreign particles. When using the computer, do not
block the air intake.
NOTE: The fan spins at a very high rotational speed and makes a whirring sound.
This phenomenon is normal and does not indicate a problem with the computer.
•Security cable slot — To prevent unauthorized removal of the computer, use a
security cable to attach the computer to an immovable object.
Back View of the Computer

Figure 1-2. Back View of the Computer

The following components are visible from the back of the computer, as illustrated in
Figure 1-2:
•Fan exhaust — Works with the air intake as part of the computer's automatic
thermal management system. When operating conditions make it necessary, the
small internal fan turns on and helps draw air through the air intake.
NOTICE: Do not push objects into the fan opening. Doing so can cause
fire or electric shock to the interior components. Keep the opening free
from dust and other foreign particles. When using the computer, do not
block the fan opening.
NOTE: The fan spins at a very high rotational speed and makes a whirring sound.
This phenomenon is normal and does not indicate a problem with the computer.
•Parallel port connector — Use the parallel port connector to attach a parallel
device to the computer. The parallel port connector is used primarily for printers.
volume control
serial port connector
video connector
infrared port
docking connector
audio connectors
USB connector
parallel port connector
PS/2 connector
AC adapter
connector
PC Card slot
fan exhaust
TV-out S-video connector