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| PCs
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running Windows 1. right click on your desktop (a dialog box will appear) 2. select Properties 3. select Screen Saver tab 4. select Energy Saving Features 5. select Settings 6. select the number of minutes after which you want your screen (and your CPU) to power down. We recommend 5 - 15 minutes [note that not all computers let you install Power Management features (e.g. Windows NT). |
| Macs 1. go to the Apple Icon 2. select Control Panels 3. select Energy Saver 4. select Show Details 5. check Seperate Timing for Display Sleep 6. select the number of minutes after which you want your screen (and your CPU) to power down. We recommend 5 -15 minutes. |
| Myth #1: Turning off my computer is bad for my computer | WRONG! Hard disks are not affected by frequent shut-downs. Equipment may actually last longer because mechanical wear and heat stress are reduced. | Turn off your computer at night. | If all the UMaine students turned their computers off at night for 6 hours, it would save 572 tons of CO2 and $87,000 in electricity costs. |
| Myth #2: Computers don't really need a lot of power if they are on but not used | WRONG! The average computer uses ~120 Watts (75 Watts for the screen and 45 Watts for the CPU), whether you're using it or not. | Turn off your computer if you are not using it for 1 hour or more. | .. |
| Myth #3: Screen savers save energy | WRONG! Screen savers don't save anything, especially power! | Turn off your monitor if you are not using your computer for more than 15 minutes. | If UMaine students and staff turned off their computer monitors for 1-5 hours a day, it would save 118-590 tons of CO2, and $18,000 - $90,000 in electricity costs. |
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