Computer standby and Standby power consumption

What is computer standby?

Standby is to keep the currently running data in memory, the machine only power the memory, while the hard disk, screen and CPU parts will stop powering. Because the data is stored in fast memory, it is faster to enter the wait state and wake up. However, the data is stored in memory, and loss of data is caused by a power outage. Some desktop computer standby, press the key on the keyboard can not be recovered, you need to press the boot key to the host can quickly restore to the working state.

In general, as long as we understand that standby is only a energy-saving mode, do not want to shut down the situation of the computer temporarily do not use a mode, power is not, monitor, processor, such as suspend power supply, when needed to use the keyboard can press any key fast wake-up Standby mode of the computer into the normal working state.

Computer standby power consumption?

Under normal circumstances, our computer in a period of time, will automatically switch to standby, and some will switch to the screen saver status, then standby screensaver state how much power consumption? Because the computer configuration is different, the working condition is different, the computer power consumption difference is very big. And does not say the early big Head CRT display, according to now common LCD demo screen computer for example. The normal work of the computer power consumption in the 120w-400w, ordinary notebook electricity consumption will be around 80-200w, high-end configuration of the game, design computer full load work consumption will be more than 400W.

If the screen saver state, the power consumption will be reduced by more than 1/3, the more simple the screen saver, but the screen saver is not electricity-saving mode, but a means of protecting screens. The reason why power consumption is relatively small, mainly because screensavers mostly just use memory and a small number of CPUs, if the use of colorful and complex screensavers, electricity consumption almost as normal as the work.

Standby is different, if the back-Office without service-type program running, then the power consumption can be reduced to the original 10% or so, according to the notebook computer and desktop, and so on, there will be 10w-50w power consumption, a friend tested, his WinXP in standby state incredibly no hour power consumption around 48W! Many friends think this is a very electricity-saving mode, so do not turn off the machine all day. In fact, we do not calculate, more than 10 hours a day, the computer is on standby, so that each computer's additional daily power loss is 100w-500w, if your unit or organization has more than one computer so, such a useless waste can not be overlooked. So the most effective energy-saving mode is to shut down the computer, the power is the best.

Introduced here to believe that the computer standby is what the meaning, as well as computer standby power consumption and other issues have a more clear understanding. In fact, standby is not really energy saving, but standby can quickly get the computer back to work before the State, discussion of power consumption, even if the computer standby also has a lot of electricity consumption, the best power-saving mode is to turn off the computer, and switching the supply, if not switching power supply, on the one hand, the power supply is waiting for the voltage, as well as the motherboard related to electrical and mechanical, so will also Generally in 3-5w, so want to save the best use of the computer shut down and cut off the host power supply, if you do not like such trouble, inconvenient, then you can use the Software Master LU Intelligent management.