About Your Computer 25
MEMORY MODULE COVER — Covers the compartment that contains the secondary memory module. See "Memory"
on page 129.
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 55.
BATTERY CHARGE GAUGE — Identifies the amount of charge remaining in the battery. See "Charge Gauge" on
page 60.
BATTERY LATCH RELEASE — Releases the battery. See "Replacing the Battery" on page 55 for instructions.
SUBWOOFER COVER — Covers the compartment that contains the subwoofer.
FAN AIR VENTS — The computer uses an internal fan to create airflow through the fan air vents, which prevents the
computer from overheating.
NOTE: The computer turns on the fan to keep the computer within proper functioning temperature. Fan noise is
normal and does not indicate a problem with the fan or the computer.
CAUTION: Do not block, push objects into, or allow dust to accumulate in the air vents. Do not store your
computer in a low-airflow environment, such as a closed briefcase, while it is running. Restricting the airflow
can damage the computer or cause a fire.
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