Lenovo 3000 - Manual (Page 27)

Chapter 2. Operating environment and other important
notices
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.
Static electricity prevention
Static electricity, although harmless to you, can seriously damage computer
components and options. Improper handling of static-sensitive parts can cause
damage to the part. When you unpack an option or CRU, do not open the
static-protective package containing the part until the instructions direct you
to install it.
When you handle options or CRUs, or perform any work inside the computer,
take the following precautions to avoid static-electricity damage:
v Limit your movement. Movement can cause static electricity to build up
around you.
v Always handle components carefully. Handle adapters, memory modules,
and other circuit boards by the edges. Never touch exposed circuitry.
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