Lenovo 9279, 6490, 9635, 9637, 9277 Operating environment, Electrical current safety information

vDo not use non-desktop air filtration devices.

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 fields 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.

Electrical current safety information

Danger

Electrical current from power, telephone, and communication cables is hazardous.

To avoid a shock hazard:

vTo prevent possible shock hazard, do not use your computer during a lightning storm.

vDo not connect or disconnect any cables or perform installation, maintenance, or reconfiguration of this product during an electrical storm.

vConnect all power cords to a properly wired and grounded electrical outlet.

vConnect to properly wired outlets any equipment that will be attached to this product.

vWhen possible, use one hand only to connect or disconnect signal cables.

vNever turn on any equipment when there is evidence of fire, water, or structural damage.

vDisconnect the attached power cords, telecommunications systems, networks, and modems before you open the device covers, unless instructed otherwise in the installation and configuration procedures.

vConnect and disconnect cables as described in the following table when installing, moving, or opening covers on this product or attached devices.

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