![](/images/backgrounds/288083/hp-compaq-presario-2800ap-notebook-pc-hardware-manual-15425013x1.png)
Identifying External Hardware
Power and Volume Controls
Top Components: Power and Volume Controls1 | Display switch* | Turns off the notebook display if the |
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| notebook is closed while it is on. |
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2 | Power button* | When the notebook is: |
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| ■ Off, briefly press to turn on the |
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| notebook. |
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| ■ On, briefly press to initiate |
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| Hibernation. |
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| ■ In Standby, briefly press to exit |
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| Standby. |
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| ■ In Hibernation, briefly press to exit |
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| Hibernation. |
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| If the system has stopped responding |
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| and Windows shut down procedures |
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| cannot be used, press and hold for 4 |
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| seconds to turn off the notebook. |
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3 | Volume buttons (2) | Adjust, mute, or restore system volume. |
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| To mute or restore volume, press both |
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| volume buttons at the same time. |
*This table describes default settings. For information about changing the function of the power button, display switch, or Fn+F3 hotkeys, refer on this CD to the Software Guide, “Power” section.
Hardware Guide |