Chapter 3. You And Your Computer; Environment And Electrical Input; Arranging Your Workspace; Glare And Lighting - Lenovo ThinkCentre M710q Hardware Maintenance Manual

Chapter 3. You and your computer

This chapter contains the following topics:
• "Environment and electrical input" on page 11
• "Arranging your workspace" on page 11
• "Accessibility information" on page 12
• "Cleaning the computer" on page 13
• "Maintenance" on page 13
• "Moving the computer" on page 14

Environment and electrical input

Environment
• Air temperature:
Operating: From 10°C (50°F) to 35°C (95°F)
Storage in original shipping package: From -40°C (-40°F) to 60°C (140°F)
Storage without package: From -10°C (14°F) to 60°C (140°F)
• Humidity:
Operating: 20%–80% (non-condensing)
Storage: 20%–90% (non-condensing)
• Altitude:
Operating: From -15.2 m (-50 ft) to 3048 m (10 000 ft)
Storage: From -15.2 m (-50 ft) to 10 668 m (35 000 ft)
Electrical input
Input voltage: From 100 V ac to 240 V ac
Input frequency: 50/60 Hz

Arranging your workspace

Arrange your workspace to suit your needs and the kind of work you do. This section provides information
about the factors that affect the way you arrange your workspace.

Glare and lighting

Position the monitor to minimize glare and reflections from overhead lights, windows, and other light
sources. Reflected light from shiny surfaces can cause annoying reflections on your screen. When possible,
place the monitor at right angles to windows and other light sources. If necessary, reduce overhead lighting
by turning off lights or using lower wattage bulbs. If you install the monitor near a window, use curtains or
blinds to block the sunlight. You can adjust the brightness and contrast controls on the monitor as the room
lighting changes throughout the day.
Where it is impossible to avoid reflections or to adjust the lighting, an antiglare filter placed over the screen
might be helpful. However, these filters might affect the clarity of the image on the screen; try them only after
you have exhausted other methods of reducing glare.
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