Sony PCG-NVR23 VAIO User Guide (primary manual) User Manual page 91

Controlling Power Consumption
You can use the preset power schemes or you can customize the power scheme settings to conserve power. By using the
power schemes, you control the power supplied to different devices in your computer, such as the LCD screen and the hard
disk drive. You also control when the computer activates a power saving mode (Standby or Hibernate).
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