【 Weak current College 】 Windows 7 save battery power by nine ways---Power By 【 China power house network 】

Microsoft recently released a document entitled "Windows7PowerManagement" 14-page white paper that describes the power management technology for Windows7 is how to reduce power consumption. If you would like to know how exactly is Windows7 power, this white paper will give you the answer. If you just want simple and rapid look, the following will tell you the principal means of Windows7 energy saving.

1. an idle resources of energy consumption

When a computer starts, not has been in full load operating condition, it will be a lot of idle time, idle time electricity consumption has become an important power management technology. In Windows7, idle power consumption to be effectively improve, when a hardware does not work after certain time will enter a low-power state, has reached and electricity-saving purposes. Including the CPU, hard drive, memory, and network parts all adopt this technology. For example, a full-power operation power consumption 35w CPU power consumption at idle time almost to 0, only this one will be able to save a lot of power.

2. adoption of the trigger to start service

Usually the system services in the system starts with the start, and then waits for the call to reside in the background. In Windows7, part of the system services only after being triggered by some event starts, such as inserting a device or change the IP. This can reduce background processes in long-running services.

3. enhanced processor power management

Windows7, integrates the latest power management technology, which enables the situation under the current load Windows7 and performance requirements for the dynamic adjustment of the CPU performance.
4. Adaptive display brightness adjustment

Microsoft, usually within 10-15 minutes, no action, the monitor will turn off automatically. But in actual use will have more time for action, in order to better energy efficiency, this technology will reduce the brightness of your display. In addition, it can also take advantage of some of the sensing device, according to the ambient brightness to adjust the display brightness.

5. low power audio

Windows7 will support Intel's low power HD audio specification, it can let codec into the very low-power state. Windows7 also supports the selective suspend technology, the idle state of the device off, such as microphones and cameras in this class of USB devices.

6. Timer consolidation

Current processor through the use of processing instructions for clearance free time to achieve energy-saving purposes, but most of the energy-saving technology requires a certain length of idle time to get energy saving effect. While this technology by enabling Windows kernel at the same time terminate-and-set originally more dispersed more timer, in a short period of time have been disposed of, thereby increasing processor idle time.

In addition, when using the battery in the notebook, Windows7 will reduce non-critical daemon activity.

7. Bluetooth device power consumption improvements

When Windows7 detected Bluetooth device is in a low-power state, will be temporarily closed, i.e., "selective suspend".

8. network device power consumption improvements

Windows7 for wireless network controller in low power mode compatibility has been strengthened, the wireless access point devices support low-power mode is enabled. Vista because you cannot advance detection support low-power mode, can cause a sudden interruption of the wireless network connection. Windows7 will prevent this from happening, in the enter low power mode before the first detection of the wireless AP supports this mode.

9. typical applications of optimization

In addition to the above list of improvements, Microsoft also to look to some specific applications, including search, browse, without networking and small game. The following is the DVD playback applications optimizationpart of the content:

· Without affecting the playback performance for CPU maintained a low power mode

· Improved by changing the schema to the desktop window manager and GPU power consumption

· Intelligent data caching can reduce optical drive speed

This is Windows7 in power management 9 important improvement compared to previous systems can save even more energy. In addition to these improvements, IT professionals can also use the power management Diagnostics for that may affect the power efficiency of the problem.