Low-carbon energy-saving Detailed explanation of several postures of Windows 7 sleeping

Low-carbon energy-saving is a thing that is being talked about all over the world, and notebooks are no exception. Endurance is an important indicator for measuring notebooks. It is important to reduce the power of the chip on the hardware. However, the application of the software is quite skillful. The same one, the life time of different usage environments is quite different. Today, I would like to introduce you to Windows7's "sleep, dormancy", and what you don't know, "mixed sleep", "departure mode".

How to use Win7 sleep hibernation function

First, leave with "sleep" & rdquo; Let the computer take a nap for a while

Usually use the computer, It is often the case that occasionally you need to leave for a period of time, long or short, not very fixed, such as when you are eating at noon or at night. At this time, if you turn off the computer, it seems to be a bit of a big problem, because many programs and web pages have to be reopened when you come back, but if you don't shut down, the computer is wasting electricity, if there is anything to delay, time from one It doesn't matter if the hour becomes two hours, then it's not a waste! It's a bit of a dilemma. What should I do? In fact, you only need to enable the system's sleep function at this time.

When you need to wake up after going to sleep, just press the power button or shake the USB mouse to quickly restore the working state before leaving, and continue to work. The speed can be much faster than restarting after shutdown! And all work before sleep can continue without restarting. At the same time, after entering the sleep state, the computer will only have the memory power-on to save the data of the working state, while the other hardware is all powered off, so the power consumption is very low.

What is "sleep"?

When the computer is in sleep state, it will cut off the power of other accessories except memory, and the working status data will be saved in the memory, so that it will be reawakened. When you are on a computer, you can quickly restore your working status before going to sleep. If you need to leave the computer for a short time during work, you can use the sleep function to save power on the one hand and resume work quickly on the other.

However, you need to be reminded that because the sleep state does not save the desktop state to the hard disk, if the power is turned off during sleep, the unsaved information will be lost, so before the system sleeps, You'd better save all the documents you need to save, Ctrl+S”, just in case.

Tip: There are two ways to enable the sleep function. One is to click sleep directly in the shutdown button of the start menu, and the other is to set the time in the computer power management, as long as the computer has no one to operate. After reaching the set time, it will automatically go to sleep.

Additionally, the methods for enabling hibernation, mixed sleep, and leave mode are similar to the method for enabling sleep.

Second, do not use for a long time "sleep", let the computer sleep well

In addition to leaving the computer for a short time, sometimes we may leave longer, such as going out Even if it is not at the computer for a day, then at this time, it will not be turned off. If it is turned off, the programs, documents, web pages, materials, etc. opened in the computer will be reopened at the next boot! No shutdown, if one day Don't come back, the power is off, all the data is over, even if it is sleepless! What should I do? It's very simple! Enable another useful function “hibernate>!

Compared to the sleep function is The data is stored in the memory. The hibernation function saves the data to the hard disk. After entering the sleep state, all the accessories are not powered, so the power consumption is almost zero! And even if the power is turned off during the sleep state, it will not affect the saved. The data, when the computer wakes up, all work can still be restored normally. At the same time, because the data is saved on the hard disk, the speed of wake-up is much faster than restarting the computer.

What is "hibernation>?

 Hibernate> is a power-saving state that is primarily designed for portable computers, where open documents and programs are saved To a file on the hard disk (can be understood as a mirror of the memory state), when the next boot, read data from this file, and load physical memory, this file is the same size as physical memory. Since the file written by memory during hibernation is a disk file, the speed of reading is much higher than that of accessing the disk during normal startup, so it is much faster than normal startup.

Another thing to say is that after the hibernation function is enabled, a hibernation file with the same size as your memory will be generated on the system disk to store the data in the memory. Users should pay attention to whether their system disk is There is enough space. For the stable operation of the system, the available space should account for about 10% of the system partition, that is, the 50GB system partition should have at least 5GB of free space.

Tip: If you don't need a computer for a long time, it is best to choose to shut down. In addition, some networked programs, such as web applications that need to log in, instant messaging software (most instant messaging software can automatically reconnect after recovery, but can not save the original dialog window) and many network management programs may appear after recovery It is not working properly, so it is best to quit these programs before the system sleeps.

Third, the departure time is not fixed with "mixed sleep", let the computer choose

Well, above we talked about leaving for a short time and leaving for a long time, but sometimes life Always full of variables, I don't know how long to leave, what should I do? It may be an hour, or maybe a day, sleep is not safe, sleep is not as convenient as sleep!

Take it easy! The solution is to let the computer choose its own flexibility. If it is not powered, it will recover from the memory; if it is powered off, it will be restored from the hard disk. And this is the "mixed sleep" function!

After the hybrid sleep is enabled, the computer will automatically go to sleep, but unlike the sleep state, the data stored in the memory will also be saved in the hard disk. Therefore, even if the power is turned off, it will not cause data loss, and when you wake up the computer, you can recover at a faster speed. This is the advantage of mixed sleep.

What is "hybrid sleep>

Hybrid sleep is unique to Win7 and not available in WinXP, which combines all the advantages of sleep and hibernation. After entering the hybrid sleep, the system will first save the data in the memory to the hard disk, and cut off the power supply of other devices except the memory. In the recovery, if there is no power failure, the system will recover directly from the memory, it only takes a few seconds; if the power is off, because the memory is still stored in the hard disk, you can also recover from the hard disk without worrying about the data. Lost.

Tip: Hybrid sleep mode requires the motherboard's power management to support S3 mode, but the general motherboard supports this mode. If your computer supports the Hybrid Sleep feature, then when you start Sleep after turning on the Hybrid Sleep feature, the system automatically goes into Hybrid Sleep.

Fourth, hang up download with & ldquo; leave mode & rdquo; let the computer run low consumption

In addition to the above we will say that several things will make the computer in the "hang-up" state, daily life There is another very important application for hanging up downloads. In the past, we usually started the download process, then turned off the monitor and speakers to let the computer run automatically. However, in this state, some non-working hardware will continue to consume power, such as video cards and sound cards. In Win7, we can enable the new "leave mode", which will not break the network, and will not affect the normal operation of the download program!

What is the power consumption situation when entering the exit mode? After entering this mode, the hard disk and memory will remain in working state, and the CPU enters a low power state (if the CPU does not support any energy saving technology, the leaving mode will cause the CPU to run at the lowest frequency & times; the lowest FSB to reduce Its power consumption), while unnecessary devices such as graphics cards and sound cards will be powered off. Although the power consumption is higher than the sleep mode, it is more power efficient than the normal boot download.

What is "away mode"?

The exit mode is similar to sleep, except that in the leave mode, file read and write operations can continue, while maintaining network connectivity, while graphics cards, Unnecessary devices such as sound cards are turned off to achieve energy saving.

However, <; leave mode" requires hardware devices to support advanced power management, and some settings are required.

First of all, you need to set the options for turning off the hard disk and going to sleep in the power management to "Never"; otherwise, the hard disk is closed, how can you download it? Secondly, you need to modify the registry to Administrator privileges Open the Registry Editor and navigate to "HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Control\\Session Manager\\Power” and create a new “DWORD (32-bit) named "AwayModeEnabled" in the right pane ” value, and the value is "ld"; 1 & rdquo; (hexadecimal), it will take effect after restart. Then click the “sleep” button in the Win7 Start menu to automatically enter the “Leave Mode”.

Related Tips:

In the process of saving sleep and hibernation, do not press the computer power switch, otherwise it may cause problems that cannot enter the system.

In addition, if you are using a laptop, if the battery is running out of battery-powered sleep state, the system will automatically save the memory data to the hard disk and then turn off the power and go to sleep. At the same time, if it reaches the sleep time in the power plan, it will also enter the sleep state. Therefore, in general, the laptop only needs to enable the sleep function. If you want to save power, you can set the time to go to sleep in the power management options, so that you can be sure of nothing.

I believe many users will doubt that they really don't need to shut down? Yes, after using the computer for so many years, we are used to turning it off after work every day, turning it off before going to bed, and even turning off when we go out to eat at noon. it. In fact, we did not seriously consider our habits, and did not carefully study the sleep and hibernation functions that Microsoft provided us. In fact, the features provided by Microsoft naturally have its usefulness, otherwise it will not always exist, and further strengthened in Win7. So after reading this article, you might as well try to experience the convenience and benefits of sleep and hibernation, and don't get used to kidnapping.