Gateway E-4650 Benutzerhandbuch

          Managing Your Computer

When purchasing a surge suppressor:

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Make sure the surge suppressor meets the appropriate product safety 
certification for your location, such as Underwriters Laboratories (UL).

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Check the maximum amount of voltage the suppressor allows to pass 
through the line. The lower the voltage that the suppressor allows to pass 
through, the better the protection for your computer.

■

Check the energy absorption (dissipation) rating. The higher the energy 
absorption rating, the better the protection for your computer.

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Check for line-conditioner capabilities. A line conditioner smooths out 
some of the normal line noise (small voltage fluctuations) of an electrical 
supply.

A line conditioner protects your computer from the small fluctuations in 
voltage from an electrical supply. Most computers can handle this variation, 
called line noise, without problems. However, some electrical sources include 
more line noise than normal. Line noise can also be a problem if your 
computer is located near, or shares a circuit with, a device that causes 
electromagnetic interference, such as a television or a motor.

Some surge suppressors and uninterruptible power supplies include simple 
line-conditioning capabilities.

Use a standby uninterruptible power supply (UPS) to protect your computer 
from data loss during a total power failure. A UPS uses a battery to keep your 
computer running temporarily during a power failure and lets you save your 
work and shut down your computer. You cannot run your computer for an 
extended period of time while using only the UPS.