Lenovo B490 Hardware Maintenance Manual - Page 41

Hibernation mode, keyboard, the hard disk drive, the parallel connector - ram

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Also, when the time set on the resume timer elapses, the computer automatically returns from sleep mode and resumes operation. Note: The computer does not accept any input immediately after it enters sleep mode. Wait a few seconds before taking any action to reenter operation mode. 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 system to go into hibernation mode, perform that action. • Closing the lid. • Pressing the power button. Also, the computer goes into hibernation mode automatically in either of the following conditions: • If a "hibernation time" has been set on the timer, and if the user does not do any operation with the keyboard, the hard disk drive, the parallel connector, or the diskette drive within that time. • If 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 system status is restored from the hard disk drive. Chapter 4. Related service information 35

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Also, when the time set on the resume timer elapses, the computer automatically returns from sleep mode
and resumes operation.
Note:
The computer does not accept any input immediately after it enters sleep mode. Wait a few seconds
before taking any action to reenter operation mode.
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 system to go into hibernation
mode, perform that action.
•
Closing the lid.
•
Pressing the power button.
Also, the computer goes into hibernation mode automatically in either of the following conditions:
•
If a “hibernation time” has been set on the timer, and if the user does not do any operation with the
keyboard, the hard disk drive, the parallel connector, or the diskette drive within that time.
•
If 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 system status is restored from the
hard disk drive.
Chapter 4
.
Related service information
35