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For your safety and to maintain optimum computer performance, always follow these basic precautions
with your desktop computer:
• Keep the cover closed whenever the computer is plugged in.
• Regularly inspect the outside of the computer for dust accumulation.
• Remove dust from vents and any perforations in the bezel. More frequent cleanings might be required for
computers in dusty or high-trafc areas.
• Do not restrict or block any ventilation openings.
• Do not store or operate your computer inside furniture, as this might increase the risk of overheating.
• Airow temperatures into the computer should not exceed 35°C (95°F).
• Do not install air ltration devices. They may interfere with proper cooling.
Operating environment
The optimal environment in which to use your computer is 10°C-35°C (50°F-95°F) with humidity ranging
between 35% and 80%. If your computer is stored or transported in temperatures less than 10°C (50°F),
allow the cold computer to rise slowly to an optimal operating temperature of 10°C-35°C (50°F-95°F) before
use. This process could take two hours in extreme conditions. Failure to allow your computer to rise to an
optimal operating temperature before use could result in irreparable damage to your computer.
If possible, place your computer in a well-ventilated and dry area without direct exposure to sunshine.
Keep electrical appliances such as an electric fan, radio, high-powered speakers, air conditioner, and
microwave oven away from your computer because the strong magnetic elds generated by these
appliances can damage the monitor and data on the hard disk drive.
Do not place any beverages on top of or beside the computer or other attached devices. If liquid is spilled on
or in the computer or an attached device, a short circuit or other damage might occur.
Do not eat or smoke over your keyboard. Particles that fall into your keyboard can cause damage.
Modem safety information
CAUTION:
To reduce the risk of re, use only No. 26 AWG or larger (for example, No. 24 AWG) telecommunication
line cord listed by Underwriters Laboratories (UL) or certied by the Canadian Standards Association
(CSA).
To reduce the risk of re, electrical shock, or injury when using telephone equipment, always follow basic
safety precautions, such as:
• Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations unless the jack is specically designed for wet locations.
• Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at
the network interface.
• Use caution when installing or modifying telephone lines.
• Avoid using a telephone (other than a cordless type) during an electrical storm. There may be a remote
risk of electric shock from lightning.
• Do not use the telephone to report a gas leak in the vicinity of the leak.
viii ThinkStation User Guide