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28 About Your 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.
AIR VENTS — The computer uses an internal 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.
AUDIO CONNECTORS
EXPRESSCARD SLOT — Supports one ExpressCard. The computer ships with a plastic
blank installed in the slot. For more information, see "Using ExpressCards" on page 79.
4 Wi-Fi Catcher light
• Flashing green: Searching for networks
• Solid green: Strong network found
• Solid yellow: Weak network found
• Flashing yellow: Error
• Off: No signal found
Attach headphones to the connector.
Attach a microphone to the connector.