Lenovo ThinkCentre M79, Hardware Maintenance Manual

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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 monitor screen. Place the
monitor at right angles to windows and other light sources, when possible. Reduce overhead lighting, if
necessary, 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.
Dust buildup compounds problems associated with glare. Remember to clean your monitor screen
periodically using a soft cloth as directed in your monitor documentation.
Air circulation
Your computer and monitor produce heat. The computer has a fan that pulls in fresh air and forces out hot
air. The monitor lets hot air escape through vents. Blocking the air vents can cause overheating, which might
result in a malfunction or damage. Place the computer and monitor so that nothing blocks the air vents;
usually, 51 mm (2 inches) of air space is sufficient. Also, ensure that the vented air is not blowing on people.
Electrical outlets and cable lengths
The following factors might determine the final placement of your computer:
• Location of electrical outlets
• Length of power cords
• Length of the cables that are connected to the monitor and other devices
When arranging your workspace:
• Avoid the use of extension cords. When possible, plug the computer power cord directly into an electrical
outlet.
• Keep power cords and cables neatly routed away from walkways and other areas where they might
get kicked accidentally.
For more information about power cords, see “Power cords and power adapters” on page 1.
Accessibility information
Lenovo is committed to providing people with disabilities greater access to information and technology.
Some technologies are already provided in your operating system. Others can be purchased through
vendors.
Users also can use the Ease of Access Center provided in the Windows operating system to configure their
computers to suit their physical and cognitive needs. The Ease of Access Center is a central location that
you can use to configure the accessibility settings and programs available on the Microsoft Windows
operating system. To use the Ease of Access Center, open Control Panel and click
Ease of Access
➙ Ease of Access Center .
The following information provides ways to help users who have hearing, vision, and mobility limitations get
the most out of their computer experience.
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ThinkCentre M79 Hardware Maintenance Manual