Power-Saving Modes - Lenovo ThinkPad T540p User Manual

For more information about the Power Manager program, refer to the help information system.

Power-saving modes

There are several modes that you can use at any time to conserve power. This section introduces each
mode and gives tips on the effective use of battery power.
• Screen blank mode (for Windows 7 only)
The computer display requires considerable battery power. To turn off the power to the display and make
the computer enter screen blank mode, right-click the battery gauge icon in the windows notification area
and select Power off display.
• Sleep mode
In sleep mode, your work is saved to memory, and then the solid-state drive or the hard disk drive and the
computer display are turned off. When your computer wakes up, your work is restored within seconds.
To put your computer into sleep mode, do the following:
– For Windows 7: Open the Start menu, then click the arrow next to the Shut down button. Click
Sleep from the menu displayed.
– For Windows 8 and Windows 8.1: Go to the Start screen by pressing the Windows key
the power icon
– For Windows 10: Open the Start menu, click
• Hibernation mode
By using this mode, you can turn off your computer completely without saving files or exiting any
programs that are running. When the computer enters hibernation mode, all open programs, folders, and
files are saved to the hard disk drive or solid-state drive, and then the computer turns off.
If you put your computer into hibernation mode with the wake-up function disabled, the computer does
not consume any power. The wake-up function is disabled by default. If you put your computer into
hibernation mode with the wake-up function enabled, the computer consumes a small amount of power.
To enable the wake-up function, do the following:
1. Open Control Panel and click System and Security.
2. Click Administrative Tools.
3. Click Task Scheduler. If you are prompted for an administrator password or confirmation, type the
password or provide confirmation.
4. From the left pane, select the task folder for which you want to enable the wake-up function. The
scheduled tasks are displayed.
5. Click a scheduled task, and then click the Conditions tab.
6. Under Power, select the check box for Wake the computer to run this task.
To put the computer into hibernation mode, change your power plan settings by doing the following:
– For Windows 7: Start the Power Manager program and then click the Power Plan tab. Then follow
the instructions on the screen. For instructions on how to start the Power Manager program, see
"Accessing Lenovo programs" on page 14.
– For Windows 8 and Windows 8.1: Right-click the battery status icon in the windows notification area
and click Power Options, and then click Change plan settings that is next to your power plan. Then
follow the instructions on the screen.
– For Windows 10: Define what the power button does first, then press the power button to put the
computer into hibernation mode. For more information, see "Front view" on page 1.
• Wireless off
When you are not using the wireless features, such as Bluetooth or wireless LAN, turn them off. This
will help conserve power. To turn off the wireless features, press F8.
, then click Sleep.
Power, and then click Sleep.
Chapter 2
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Using your computer