https://docs.microsoft.com/en-us/windows/win32/power/system-power-states
Power state ACPI state Description
| Working | S0 | The system is fully usable. Hardware components that are not in use can save power by entering a lower power state. |
Sleep
(Modern Standby) | S0 low-power idle | Some SoC systems support a low-power idle state known as Modern Standby. In this state, the system can very quickly switch from a low-power state to high-power state, so that it can respond quickly to hardware and network events. Systems that support Modern Standby do not use S1-S3. |
| Sleep | S1
S2
S3 | The system appears to be off. Power consumed in these states (S1-S3) is less than S0 and more than S4; S3 consumes less power than S2, and S2 consumes less power than S1. Systems typically support one of these three states, not all three.
In these states (S1-S3), volatile memory is kept refreshed to maintain the system state. Some components remain powered so the computer can wake from input from the keyboard, LAN, or a USB device.
Hybrid sleep, used on desktops, is where a system uses a hibernation file with S1-S3. The hibernation file saves the system state in case the system loses power while in sleep.
[!Note]
SoC systems that support modern standby (the low-power idle state) do not use S1-S3.
|
| Hibernate | S4 | The system appears to be off. Power consumption is reduced to the lowest level. The system saves the contents of volatile memory to a hibernation file to preserve system state. Some components remain powered so the computer can wake from input from the keyboard, LAN, or a USB device. The working context can be restored if it is stored on nonvolatile media.
Fast startup is where the user is logged off before the hibernation file is created. This allows for a smaller hibernation file, more appropriate for systems with less storage capabilities. |
| Soft Off | S5 | The system appears to be off. This state is comprised of a full shutdown and boot cycle. |
| Mechanical Off | G3 | The system is completely off and consumes no power. The system returns to the working state only after a full reboot. |
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Windows系统中，同时按 Windows + R 组合按键，打开运行窗口，输入“msinfo32”，点“确定”，如果有UAC提示，点“是”继续，会打开系统信息窗口。
◆操作系统名称和版本是？
◆系统SKU是？
◆BIOS版本/日期是？
◆BIOS模式是？
◆主板产品是？
◆用户名是？
◆左侧的“组件”双击展开，选择“显示”，查看右侧“驱动程序版本”是多少？如果有多个显卡，请都提供。
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