Monitors do use zero energy when turned off. Instead of "Settings," you'll see "Plugged In" and "On Battery." Change the value of one or both of these settings to "Never," depending on your preferences.Ĭlick the "+" next to "Power Buttons and Lid" if you're using a laptop, and then click the "+" next to "Lid Close Action." If either "On Battery" or "Plugged In" is set to "Hibernate," change the values to "Sleep" or "Do Nothing" to prevent the laptop from hibernating when you close the lid. In hibernate mode, your PC uses the same 2.3 watts in sleep mode, your PC uses about 3.1 watts. Changing these settings will not affect hibernation, however, except for the fact that Windows will not activate hibernation while your computer is out of sleep mode.Ĭlick "Change Advanced Power Settings" on the next screen to bring up the Power Options window.Ĭlick the "+" next to the "Sleep" entry to expand the listing, and then click the "+" next to the "Hibernate After" entry.Ĭlick the number of minutes displayed after "Setting," and then click the down arrow next to the entry until it changes to "Never." If you're using a laptop, the options will be different. Use the controls on this screen if you want to change the number of minutes it takes Windows to enter Sleep Mode or to power off your display. By default, most desktop PCs use the "Balanced" plan, while laptops use the "Power Saver" plan. And once the computer power off accidentally, the files temporarily stored in memory will be lost.Click the "Change Plan Settings" link next to the power plan used by your computer. ![]() When computers go into Sleep Mode, temporary files are stored in RAM for quick reawakening. At this moment, the computer only needs a weak electric current to stay hibernation. With Hibernate Mode, computers save files to their hard drive and minimize their power usage. ![]() Here are the results:Īccording to the data, computers on Sleep Mode and Hibernate Mode consume very little power and see no difference between them.īut actually, Hibernate Mode uses less power draw than Sleep Mode. We calculate the power consumption of the above computers in sleep, hibernation, and running state (CPU is idle) respectively with an electric energy meter. Monitor: Samsung SyncMaster E1920ENW/1920NW/E1920NWX.Hard disk: Samsung SSD 860 EVO 250GB ATA Device, ST500DM -1BD142 ATA Device.CPU: Intel(R) Pentium(R) CPU G640 Memory: Kingston HyperX KHX1866C10D3/8G.Hard disk: SanDisk SSD PLUS 240GB, TOSHIBA HDWD110.CPU: AMD Ryzen 3 2200G with Radeon Vega Graphics.The following is the basic hardware of three computers: We randomly selected three computers for the test. So how much power draw does a computer consume in these two modes? Read on to find more. ![]() The computers use much less power when they go into sleep mode or hibernate mode. When computers go into Hibernate Mode, all the files and programs running on the computer would be saved to the hard drive. Besides, all the work before entering the Sleep Mode can be running normally. Because when the computer is asleep, just a click of the mouse or a press of the keyboard can quickly wake up the computer. When we're away from our computers for a while, it's more convenient to set them on Sleep Mode. Sleep VS Hibernate: How much Power Consumption does a Computer Use?
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