Specific ways to keep your computer running at low energy

Everyone should know that the computer needs to consume power when it is running. If you use a computer for a long time, then the power consumption is a big problem for a long time. What's more, now we all advocate saving electricity. This is an era of environmental protection. Low energy consumption or low carbon life is the main appeal of our lives. Therefore, we reduce the power consumption of the computer and effectively save electricity. In fact, when the computer is running, it will not always be in a load state, so there will be a lot of idle time, so the power consumption in idle time becomes an important technology for power management. In Windows 7, the power consumption during idle time is effectively improved. When a certain hardware does not work for a certain period of time, it will enter a low-power state and achieve power saving. How does the power management technology of Windows 7 reduce power consumption? This tutorial will be explained in detail and we hope to help you.

1. Display brightness adjustment

If there is no operation in 10-15 minutes, the display will automatically turn off by default. However, there will be more short-term no-operations in actual use, and in order to save energy, the technology will reduce the brightness of the display. In addition, it can use some sensing devices to adjust the brightness of the display according to the brightness of the surrounding environment.

2. Low-Power Audio

Windows 7 will support Intel's low-power HD audio specification, which allows the codec to enter a very low power state. Windows 7 also supports selective suspend technology to turn off devices that are idle, such as USB devices such as microphones and cameras, and we can set this up.

3. Timer integration Currently, the processor achieves energy saving by utilizing the gap free time of processing instructions, but most energy-saving technologies require a certain length of idle time to obtain energy-saving effects. This technology increases the idle time of the processor by allowing the Windows kernel to terminate at the same time and concentrate on a plurality of timers that are more dispersed. In addition, Windows 7 reduces the frequency of non-critical daemons when the notebook is using a battery.

4. Bluetooth device power consumption improvement

When Windows 7 detects that Bluetooth devices are in low power state, they will be temporarily turned off, that is, "optional suspend". We should develop it when Bluetooth is not in use, and if it is left on standby, it will not only occupy your system, but also cause unnecessary power loss.

5. Network device power consumption improvement

The compatibility of the wireless network controller low power mode in Windows 7 has been enhanced, only when the wireless AP device supports low power mode. Will be enabled. However, it is not possible to detect in advance whether low power mode is supported, which may cause a sudden interruption in the wireless network connection. Windows 7 will prevent this from happening. It will first detect if the wireless AP supports this mode before entering the low power mode.