About Your Computer 25M E M O R Y M O D U L E C O V E R — Covers the compartment that contains the secondary memory module. See "Memory"on page 129.B A T T E R Y — When a battery is installed, you can use the computer without connecting the computer to anelectrical outlet. See "Using a Battery" on page 55.B A T T E R Y C H A R G E G A U G E — Identifies the amount of charge remaining in the battery. See "Charge Gauge" onpage 60.B A T T E R Y L A T C H R E L E A S E — Releases the battery. See "Replacing the Battery" on page 55 for instructions.S U B W O O F E R C O V E R — Covers the compartment that contains the subwoofer.F A N A I R V E N T S — The computer uses an internal fan to create airflow through the fan air vents, which prevents thecomputer from overheating.NOTE: The computer turns on the fan to keep the computer within proper functioning temperature. Fan noise isnormal 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 yourcomputer in a low-airflow environment, such as a closed briefcase, while it is running. Restricting the airflowcan damage the computer or cause a fire.
