Lenovo K4450 Laptop Hardware Maintenance Manual - Lenovo K4450 and K4450A - Page 33

Hibernation mode, mode, performthataction., harddiskdrive.

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Hibernation mode In hibernation mode, the following occurs: • The system status, RAM, VRAM, and setup data are stored on the hard disk drive. • The system is powered off. If you have defined one of the following actions as the event that causes the computer to enter hibernation mode, perform that action. • Closing the lid • Pressing the power button Also, the computer automatically enters hibernation mode in either of the following circumstances: • A "hibernation time" has been set on the timer, and the user does not do any operation with the keyboard, the hard disk drive, the parallel connector, or the diskette drive within that time. • The timer conditions are satisfied in suspend mode. 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 is read, and the system status is restored from the hard disk drive. Chapter 3. Important service information 27

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Hibernation mode
Inhibernationmode,thefollowingoccurs:
•Thesystemstatus,RAM,VRAM,andsetupdataarestoredontheharddiskdrive.
• The system is powered off.
Ifyouhavedefinedoneofthefollowingactionsastheeventthatcausesthecomputertoenterhibernation
mode,performthataction.
• Closing the lid
• Pressing the power button
Also,thecomputerautomaticallyentershibernationmodeineitherofthefollowingcircumstances:
•A“hibernationtime”hasbeensetonthetimer,andtheuserdoesnotdoanyoperationwiththekeyboard,
theharddiskdrive,theparallelconnector,orthediskettedrivewithinthattime.
•Thetimerconditionsaresatisfiedinsuspendmode.
Whenthepoweristurnedon,thecomputerreturnsfromhibernationmodeandresumesoperation.The
hibernationfileinthebootrecordontheharddiskdriveisread,andthesystemstatusisrestoredfromthe
harddiskdrive.
Chapter 3
.
Important service information
27