Lenovo ThinkStation P520, User Manual, Page: 167 / 174

Appendix F. ENERGY STAR model information
ENERGY STAR
®
is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of
Energy aimed at saving money and protecting the environment through energy efficient products and
practices.
Lenovo is proud to offer products with the ENERGY STAR certified designation. Lenovo computers, if carry
an ENERGY STAR mark, have been designed and tested to conform to the ENERGY STAR program
requirements for computers as prescribed by the U.S. Environmental Protection Agency. For a certified
computer, an ENERGY STAR mark may be affixed to the product, the product packaging, or displayed
electronically on the E-label screen or the power settings interface.
By using ENERGY STAR compliant products and taking advantage of the power-management features of
your computer, you reduce the consumption of electricity. Reduced electrical consumption contributes to
potential financial savings, a cleaner environment, and the reduction of greenhouse gas emissions. For more
information about ENERGY STAR, go to
https://www.energystar.gov/
.
Lenovo encourages you to make efficient use of energy an integral part of your day-to-day operations. To
help in this endeavor, set the following power-management features to take effect when your computer has
been inactive for a specified duration:
Table 1. Default power plan (when plugged into ac power)
• Turn off the display: After 10 minutes
• Put the computer to sleep: After 25 minutes
To awaken your computer from Sleep mode, press any key on your keyboard.
To change power settings, do the following:
1. Click the Start button to open the Start menu.
2. Click Windows System ➙ Control Panel .
3. View Control Panel by Large icons or Small icons, and then click Power Options .
4. Follow the instructions on the screen.
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