Lenovo E4325 - Manual (Page 38)

Screen blank mode
In the following circumstances, the computer enters screen blank mode:
• The time set on the “Turn off monitor” timer on the Windows 7 operating system expires.
To end screen blank mode and resume normal operation, press any key.
• You have pressed Fn+F2.
To end screen blank mode and resume normal operation, press Fn+F2.
Sleep mode
When the computer enters sleep mode, the following events occur in addition to what occurs in screen
blank mode:
• The LCD is powered off.
• The hard disk drive is powered off.
• The microprocessor stops.
To enter sleep mode, press Fn+F1.
In certain circumstances, the computer automatically enters sleep mode:
• A “suspend 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 battery status indicator blinks orange, indicating that the battery power is low.
To cause the computer to return from sleep mode and resume the operation, do one of the following:
• Press the Fn key.
• Open the LCD cover.
• Press the power button.
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 actions 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 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.
32 Hardware Maintenance Manual