Acer Aspire E1-521 User Manual download pdf (Page 46)

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Power management

This computer has a built-in power management unit that monitors system activity.

System activity refers to any activity involving one or more of the following devices:

keyboard, mouse, hard disk, peripherals connected to the computer, and video

memory. If no activity is detected for a period of time (called an inactivity timeout),

the computer stops some or all of these devices in order to conserve energy.

This computer employs a power management scheme that supports the advanced

configuration and power interface (ACPI), which allows for maximum power

conservation and maximum performance at the same time. Windows handles all

power-saving chores for your computer.

Acer PowerSmart key

Note: This feature is only available on certain models.

Acer PowerSmart uses the power-saving features of your computer's graphics sub-

system to reduce overall power consumption. When you press the Acer

PowerSmart key, the screen brightness is reduced and the graphics chip switched

to a lower speed; PCI and WLAN switch to power-saving modes. Press the Acer

PowerSmart key again to return to your previous settings.

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Acer Aspire E1-521 User Manual Page 46