Apple MacBook Pro (15-inch) - Manual (Page 27)

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Getting to Know Your
MacBook Pro
This chapter introduces important basics about your
MacBook Pro.
Whenever you stop using your MacBook Pro, wait a few moments to let the hard disk
and any disc (such as a CD or DVD) in your optical drive stop spinning before you
transport the computer. Avoid jostling or bumping your MacBook Pro while discs are
spinning.
Note: Your MacBook Pro uses Sudden Motion Sensor technology to help protect the
hard disk if the computer is dropped or experiences extreme vibration. See
“Understanding Sudden Motion Sensor Technology” on page 76 for more information.
When you use your MacBook Pro or charge its battery, it is normal for the bottom of
the case to get warm. For prolonged use, place your MacBook Pro on a flat, stable
surface. The bottom of the case is raised slightly to allow airflow, which keeps the unit
within normal operating temperatures.
As you get to know your new MacBook Pro, you might hear system sounds during
startup and when using your hard disk and optical drive. After the MacBook Pro runs
for some time, small fans might turn on to cool it, producing a faint sound. System
sounds such as these are part of the computer’s normal functioning.