Lenovo G450/G550 User Guide V2.0

Important safety information
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Keep a good ventilation of the computer and other parts.
Danger:
• Placing the working computer or other parts on a bed, sofa or other flexible surface
may block the ventilation slots causing overheat of your computer or other parts to
overheat or even catch a fire.
Turn off wireless devices where they may cause interference, such as in a hospital or at an
airport.
On using
Use ONLY the power cord, power adapter and battery pack shipped with the computer and
never use them with another product.
Be sure the power outlet is suitable for the plug and provides the correct voltage and
current for the product you are installing.
Danger:
• An unsuitable power supply may damage your computer or cause an electric shock
or fire.
Do NOT use a power outlet, power cord, power adapter or battery pack that appears to be
damaged or corroded.
Do NOT share an electrical outlet with other home or commercial appliances that draw
large amounts of electricity.
If a power strip is used, the load should NOT exceed its rating. Unplug the power cord if
there is a cracking, hissing, or a popping sound, or a strong odor comes from the computer.
Danger:
• Overloading the power supply may cause unstable voltages which might damage
the computer, data, or attached devices, or even cause a fire.
Do NOT wrap the power cord around the power adapter or other object.
Do NOT squeeze or pinch the cord, or place heavy objects on it.
Attention:
• Stressing the cord may cause the cord to fray, crack or crimp which may present a
safety hazard.
Avoid keeping your hands, your lap, or any other part of your body in contact with a hot
section of the working computer for any extended length of time.
Attention:
• Extended contact with your body, even through clothing, could cause discomfort or
even a skin burn.
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Lenovo G450-550 UG V2.0_en.book Page iii Wednesday, September 2, 2009 9:29 AM