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Friday: 8:00am - 5:00pm
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(when classes are in session)

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Reducing the Power Your Computer Uses


As part of JMU’s ongoing commitment to environmental stewardship and in compliance with Executive Order 82, the university has adopted Policy 1704-Energy Use.  To assist with reducing power use on computers, instructions are listed below by operating system

Instructions by Operating System
Windows 7
Windows Vista
Windows XP
Macintosh OSX

Placing your computer in a low-power mode when not in use dramatically reduces the amount of energy your computer uses.

General information about low-power modes

Sleep or Standby: The state of your computer is saved in random access memory (RAM) and the computer enters a low-power mode.
Pros: Takes less time for your computer to return to an active state
Cons: In the event of a power outage, you may lose work in any unsaved documents

Hibernate: The state of your computer is saved to disk and the computer enters a low-power mode.
Pros: Because it writes your computer's "state" to disk, it is able to recover from a power outage.
Cons: Takes longer than sleep/standby to enter and exit low-power mode. Hibernate is not a default option on many systems, and may require administrative privileges to enable it.

The following screenshots illustrate entering Standby and Sleep modes. If Hibernation is enabled, it will also be a option on the menus.

    Windows 7 - entering sleep mode
  • Click the Start button, then the arrow next to the Shut down button and then click "Sleep"
    Save Energy

  • To make your computer active again, move your mouse or press any key

    Windows XP - entering standby mode
  • Click the Start button, then "Shut Down"
    Save Energy

  • From the drop down menu, click "Standby"
    Save Energy

  • To make your computer active again, press your computer’s power button

    Windows Vista - entering sleep mode
  • Click the Start menu, then the arrow next to the lock button
    Save Energy

  • From the menu, click "Sleep"
    Save Energy

  • To make your computer active again, move your mouse or press any key


    Macintosh OSX - entering sleep mode
  • From the Apple menu, click “Sleep”
    Save Energy

  • To make your computer active again, move your mouse or press any key