Lenovo IdeaPad S9e -FR User Manual download pdf (Page 45)

Power management

To reduce power consumption, the computer has three power management modes:

screen blank, standby, and hibernation.

Screen blank mode

To enter screen blank mode, press Fn + F2. To end screen blank mode and resume

normal operation, press Fn + F2.

In certain circumstances, the computer goes into screen blank mode automatically:

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

the LCD backlight turns off.

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

Standby mode

When the computer enters standby mode, the following events occur in addition to

what occurs in screen blank mode:

v The LCD is powered off.

v The hard disk drive is powered off.

v The CPU stops.

enter standby mode, press Fn+F1.

Note: If you are using the ACPI operating system, you can change the action of

Fn+F1.

In certain circumstances, the computer goes into standby mode automatically:

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

operation with the keyboard, the touch panel, the hard disk, the parallel

connector, or the optical drive within that time.

v If the battery indicator blinks orange, 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.)

Note

for the APM operating system: Even if you do not set the low-battery alarm,

the charge indicator notifies you when the battery is low, and then the computer

enters the power-saving mode automatically. This default low-battery behavior is

independent of the operating system; so if you have set the low-battery alarm, the

computer may not do what you specified. It chooses either your setting or the

default setting, whichever is appropriate.

If you are using the ACPI operating system, only the low-battery alarm is

available.

To cause the computer to return from standby mode and resume operation, do one

of the following:

v Press the Fn key.

v Open the LCD cover.

v Turn on the power switch.

Related service information 37

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Lenovo IdeaPad S9e -FR User Manual Page 45