![]() If you still can’t see the option, you should check your Power Options Properties in your Control Panel. If you hold down your Shift key, you’ll see the Stand By option changes to Hibernate. If yours is, to see the Hibernate option on your XP shutdown screen, and when you turn off your computer you will see a dialog box presenting three options: Standby, Turn Off and Restart. = Not all PCs have the capability and are configured to Hibernate, and Hibernate doesn’t show by default. It's also helpful if the Hibernate option has disappeared from your laptop for some reason. That option isn't available to desktop users by default. Laptop users can skip to the chase and just choose Hibernate manually. = Hibernate happens automatically in Windows Vista for both laptops and desktops after the computer has been sleeping for a while. Putting your computer into the sleep state is like pausing a DVD player-the computer immediately stops what it’s doing and is ready to start again when you want to resume working. = Sleep is a power-saving state that allows a computer to quickly resume full-power operation (typically within several seconds) when you want to start working again. FYI - You cannot power-off the system in 'Stand by' mode. The system ten is able to reactivate very quickly when you press any key or move the mouse. In 'Stand by' mode, Windows OS turns off non-essential hardware resources such as hard disk, removable disks, monitor. And that’s because they work differently. So, when you wake them up, the recovery is fast-that is, relative to a startup from a complete shutdown. = Stand By and Hibernate are techniques used for putting your computer to sleep-and saving power. The main differences lie in power consumption and data storage. Where people get confused is between Stand By and Hibernate. = When you click Turn Off Computer, Windows XP shows4 options to shut down your computer: Stand By – Turn Off – Restart –Hibernate Most people understand Turn Off and Restart as they’re frequently used. Otherwise, just set your computer to standby so that it wakes up quickly the next time you want to use it, and don't worry about the very small difference in energy use ![]() If that kind of savings is important to you, then sure, hibernate or shut down your computer. Six watts x23 hours a day x30 days a month is4.1 kWh, which at15¢/kWh would cost you62¢/mo. Hibernate or Shut Down will save more energy, but not much. With Hibernate or Shut Down, you have to wait30 seconds to3 minutes for it to start up again. With Standby it takes only a few seconds for your computer to wake up. You probably want Standby, because it's the most convenient. You can change the3-hour period to something else in Settings > Power Options. Sleep initially means Standby, but it switches to Hibernate if the battery level drops too low (laptop) or the computer has been sleeping for more than three hours (both desktops & laptops). Sleep initially means Standby, but if the battery level drops very low then the laptop automatically Hibernates. Sleep is more complicated, because it means different things on different computers. The difference is that hibernate saves more energy because the computer goes off completely, but it takes longer for the computer to wake up from hibernation, so it's not as convenient. Hibernate saves your workspace (all your open windows), then turns the computer off. Standby puts your computer into energy-saving mode, where it uses very little power. Time to sleep/wake up : a few seconds in Standby, and30 secs to3 minutes in Hibernate Energy Use : 1-6 watts in Standby and 0 watts in Hibernate
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