Lenovo M4400s notebook - Manual (Page 33)

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