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Power management, Screen blank mode, Sleep (standby) mode – Lenovo IdeaPad S205 User Manual

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Related service information

Power management

Note: Power management modes are not supported for APM operating system.

To reduce power consumption, the computer has three power management

modes: screen blank, sleep (standby), and hibernation.

Screen blank mode

If the time set on the “Turn off monitor” timer in the operating system expires,

the LCD backlight turns off. You can also turn off the LCD backlight by pressing

Fn+F2.

To end screen blank mode and resume normal operation, press any key.

Sleep (standby) mode

When the computer enters sleep (standby) mode, the following events occur in

addition to what occurs in screen blank mode:

The LCD is powered off.

The hard disk drive is powered off.

The CPU stops.

To enter sleep (standby) mode, press Fn+F1.

In certain circumstances, the computer goes into sleep (standby) mode

automatically:

If a “suspend time” has been set on the timer, and the user does not do any

operation with the keyboard, the hard disk, the parallel connector, or the

diskette drive within that time.
If the battery indicator

starts blinking, indicating that the battery power is low.

(Alternatively, if

Hibernate when battery becomes low has been selected

in the “Power Management Properties” window, the computer goes into

hibernation mode.)

To cause the computer to return from sleep (standby) mode and resume the

operation, do one of the following:

Press the Fn key.

Open the lid.

Turn on the power switch.

Also, in the following event, the computer automatically returns from sleep

(standby) mode and resumes the operation:

The time set on the resume timer elapses.

Note: The computer does not accept any input immediately after it enters

sleep (standby) mode. Wait a few seconds before taking any action to reenter

operation mode.