9 ways to reduce power consumption in Windows 7

When a computer is started, it will not be in full load operation, 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? Br> Microsoft recently announced a 14-page white paper titled “Windows 7 Power Management” that describes how Windows 7's power management technology reduces power consumption. If you want to know how Windows 7 saves power, this white paper will give you the answer. If you just want to quickly and easily understand, the following will tell you the main way to save energy in Windows 7.
1. Energy consumption of idle resources
When a computer is started, it will not be in full load operation, so there will be a lot of idle time, so the power consumption in idle time becomes a power management. Important technology. 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. This technology is used in the CPU, hard disk, memory and network parts. For example, a CPU with a full power consumption of 35w consumes almost zero power when idle, and this alone can save a lot of power.
2. Start the service by triggering
Usually the system service will start together when the system starts, and then stay in the background and wait for the call. In Windows 7, some system services are only started when triggered by some events, such as inserting a device or changing the IP. This reduces the number of long-running services in the background process.
3. Enhanced Processor Power Management
Windows 7 integrates the latest power management technology that allows Windows 7 to dynamically adjust CPU performance based on current load conditions and performance requirements.
4. Adaptive display brightness adjustment
Microsoft said that the display will automatically turn off if there is no operation for 10-15 minutes. 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.
5. 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.