Apple MacBook Pro (17-inch, Late 2011) - Manual (Page 71)

71 Chapter 5 Last, but Not Least
To operate the computer safely and reduce the possibility of heat-related injuries,
follow these guidelines:
 Set up your MacBook Pro on a stable work surface that allows for adequate air
circulation under and around the computer.
 Do not operate your MacBook Pro on a pillow, blanket, or other soft material, because
the material can block the airflow vents.
 Never place anything over the keyboard when operating your MacBook Pro.
 Do not push objects into the ventilation openings.
 If your MacBook Pro is on your lap and gets uncomfortably warm, remove it from
your lap and place it on a stable work surface.
Water and wet locations Keep your MacBook Pro away from sources of liquid, such as
drinks, washbasins, bathtubs, shower stalls, and so on. Protect your MacBook Pro from
dampness or wet weather, such as rain, snow, and fog.
85W MagSafe Power Adapter Use only the power adapter that came with your
MacBook Pro, or an Apple-authorized power adapter that is compatible with this
product. Make sure the AC plug or AC power cord is fully inserted into the power
adapter before plugging the adapter into a power outlet.
The power adapter may become very warm during normal use. The MagSafe Power
Adapter complies with the user-accessible surface temperature limits defined by the
International Standard for Safety of Information Technology Equipment (IEC 60950-1).