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About Your Computer 35
CONSUMER IR SENSOR — Receives the signal from the Dell travel remote controller
for basic multimedia navigation control.
RIGHT SPEAKER — To adjust the volume of the integrated speaker, press the volume
control buttons or the mute button.
WIRELESS MINI-CARD COVER — Covers wireless Mini-Cards (WLAN, WWAN, or
WPAN), or a Flash Cache Module (FCM) (see "Wireless Mini-Cards" on page 179
and "Flash Cache Module" on page 187).
BATTERY — When a battery is installed, you can use the computer without
connecting the computer to an electrical outlet (see "Using a Battery" on page 59).
BATTERY CHARGE/HEALTH GAUGE — Provides information on the battery charge (see
"Checking the Battery Charge" on page 60).
BATTERY RELEASE LATCHES — Releases the battery (see "Replacing the Battery" on
page 65 for instructions).
FAN — The computer uses a fan to create airflow through the vents, which prevents
the computer from overheating. The computer turns the fan on when the computer
gets hot. Fan noise is normal and does not indicate a problem with the fan or the
computer.
HARD DRIVE — Stores software and data.