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power cord or power adapter has been stressed by misuse. Liquids also can

cause gradual corrosion of power cord terminals and/or the connector terminals

on a power adapter, which can eventually result in overheating.

Always connect power cords and signal cables in the correct order and ensure that

all power cord connectors are securely and completely plugged into receptacles.

Do not use any power adapter that shows corrosion at the ac input pins or shows

signs of overheating (such as deformed plastic) at the ac input or anywhere on the

power adapter.

Do not use any power cords where the electrical contacts on either end show

signs of corrosion or overheating or where the power cord appears to have been

damaged in any way.

Voltage-selection switch

Some computers are equipped with a voltage-selection switch located near the

power-cord connection point on the computer. If your computer has a voltage-

selection switch, ensure that you set the switch to match the voltage available at

your electrical outlet. Setting the voltage-selection switch incorrectly can cause

permanent damage to the computer.

If your computer does not have a voltage-selection switch, your computer is

designed to operate only at the voltage provided in the country or region where the

computer was originally purchased.

If you relocate your computer to another country, be aware of the following:

• If your computer does not have a voltage-selection switch, do not connect the

computer to an electrical outlet until you have verified that the voltage provided

is the same as it was in the country or region where the computer was originally

purchased.

• If your computer has a voltage selection switch, do not connect the computer

to an electrical outlet until you have verified that the voltage-selection switch is

set to match the voltage provided in that country or region.

If you are not sure of the voltage provided at your electrical outlet, contact your

local electric company or refer to official Web sites or other literature for travelers to

the country or region where you are located.

Ensure that extension cords, surge protectors, uninterruptible power supplies, and

power strips that you use are rated to handle the electrical requirements of the

Safety and warranty guide