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Appendix B. Use, and care information
Caring for your computer - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Though your computer is designed to function reliably in normal work environments, you need
to use common sense in handling it. By following these important tips, you will get the most use
and enjoyment out of your computer.
Be careful about where and how you work
• Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause
damage.
• Store packing materials safely out of the reach of children to prevent the risk of suffocation
from plastic bags.
• Keep your computer away from magnets, activated cellular phones, electrical appliances, or
speakers (within 13 cm or 5 in).
• Avoid subjecting your computer to extreme temperatures (below 5°C/41°F or above 35°C/
95°F).
• Some appliances, such as certain portable desktop fans or air purifiers, can produce negative
ions. If a computer is close to such an appliance, and is exposed for an extended time to air
containing negative ions, it may become electrostatically charged. Such a charge may be
discharged through your hands when you touch the keyboard or other parts of the computer,
or through connectors on I/O devices connected to it. Even though this kind of electrostatic
discharge (ESD) is the opposite of a discharge from your body or clothing to the computer, it
poses the same risk of a computer malfunction.
Your computer is designed and manufactured to minimize any effects of electrostatic charge.
An electrostatic charge above a certain limit, however, can increase the risk of ESD. Therefore,
when using the computer close to an appliance that can produce negative ions, give special
attention to the following:
- Avoid directly exposing your computer to the air from an appliance that can produce
negative ions.
- Keep your computer and peripherals as far as possible from such an appliance.
- Wherever possible, ground your computer to facilitate safe electrostatic discharge.
Notice of static-electricity
When you handle options or CRUs, or perform any work inside the computer, take the
following precautions to avoid static-electricity damage:
- Limit your movement. Movement can cause static electricity to build up around you.
- Always handle components carefully. Handle adapters, memory modules, and other circuit
boards by the edges. Never touch exposed circuitry.
- Prevent others from touching components.
- When you install a static-sensitive option or CRU, touch the static-protective package
containing the part to a metal expansion-slot cover or other unpainted metal surface on the
computer for at least two seconds. This reduces static electricity in the package and your
body.