Lenovo IdeaPad U455 - Manual (Page 116)

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Appendix E. Notices
Lenovo encourages you to make efficient use of energy an integral part of
your day-to-day operations. To help in this endeavor, Lenovo has preset the
following power-management features to take effect when your computer
has been inactive for a specified duration:
To awaken your computer from a Sleep mode, press any key on your
keyboard. For more information about these settings, refer to your Windows
Help and Support information system.
Table 1. ENERGY STAR power-management features, by operating system
Windows
®
7
Power plan: Energy Star
• Turn off the display: After 10 minutes
• Put the computer to sleep: After 25 minutes
• Advanced power settings:
- Turn off hard disks: After 20 minutes
- Hibernate: After 1 hour