Sony VGN-N300 - Manual (Page 80)

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Customizing Your VAIO Computer
Using Sleep Mode
Sleep mode turns off the LCD screen and places the hard disk and the CPU into a low power consumption mode. The umber
power light flashes in this mode.
To activate Sleep mode
Click Start, the arrow next to the Lock button, and Sleep.
To return to Normal mode
Press any key.
!
If you press and hold the power button for more than four seconds, your computer will turn off automatically. You will lose any unsaved data.
✍
When your computer is in Sleep mode, you cannot insert a disc.
Your computer comes out of Sleep mode quicker than out of Hibernate mode.
Sleep mode uses more power than Hibernate mode.
!
If the battery runs down while your computer is in Sleep mode, you will lose any unsaved data. Going back to the previous work state is impossible.
To avoid loss of data, you should save your data frequently.