Lenovo E40-30 Laptop Hardware Maintenance Manual - Lenovo E40-xx Notebook - Page 32

Hibernation mode, Settings, Power, Sleep

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• For Windows 8 and Windows 8.1: Move the cursor to the bottom-right corner of the screen to display the charms. Then click Settings ➙ Power ➙ Sleep. To return to normal operation, press any key. In certain circumstances, the computer goes into sleep mode automatically: • After a period of inactivity specified in power plan settings • When the battery power is low Hibernation mode In hibernation mode, the following occurs: • The system status, random access memory (RAM), video random access memory (VRAM), and setup data are stored on the hard disk drive or solid-state drive. • The system is powered off. Note: If the computer enters the hibernation mode while it is docked to the docking station or the port replicator, do not undock it before resuming normal operation. If you do undock it and then try to resume normal operation, you will get an error message, and you will have to restart the system. If you have defined one of the following actions as the event that causes the system to go into hibernation mode, perform that action. • Closing the lid. • Pressing the power button. Also, the computer goes into hibernation mode automatically after a period of inactivity specified in power plan settings. When the power is turned on, the computer returns from hibernation mode and resumes operation. The hibernation file in the boot record on the hard disk drive or solid-state drive is read, and system status is restored from the hard disk drive or solid-state drive. 26 Hardware Maintenance Manual

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• For Windows 8 and Windows 8.1: Move the cursor to the bottom-right corner of the screen to display the
charms. Then click
Settings
➙
Power
➙
Sleep
.
To return to normal operation, press any key.
Incertaincircumstances,thecomputergoesintosleepmodeautomatically:
• After a period of inactivity specified in power plan settings
• When the battery power is low
Hibernation mode
In hibernation mode, the following occurs:
• The system status, random access memory (RAM), video random access memory (VRAM), and setup
data are stored on the hard disk drive or solid-state drive.
• The system is powered off.
Note:
If the computer enters the hibernation mode while it is docked to the docking station or the port
replicator, do not undock it before resuming normal operation. If you do undock it and then try to resume
normaloperation,youwillgetanerrormessage,andyouwillhavetorestartthesystem.
Ifyouhavedefinedoneofthefollowingactionsastheeventthatcausesthesystemtogointohibernation
mode, perform that action.
• Closing the lid.
• Pressing the power button.
Also,thecomputergoesintohibernationmodeautomaticallyafteraperiodofinactivityspecifiedinpower
plan settings.
When the power is turned on, the computer returns from hibernation mode and resumes operation. The
hibernation file in the boot record on the hard disk drive or solid-state drive is read, and system status is
restored from the hard disk drive or solid-state drive.
26
Hardware Maintenance Manual