Shulou(Shulou.com)05/31 Report--

Hello everyone, Lin Fei to answer the above questions, how much power notebook computers need to plug in, how much notebook power many people do not know, now let's take a look!

What is the motivation of the notebook? There are more and more users of notebooks, and many users like to install software to detect the power consumption of notebooks. But this test software gives an estimate, few people know how much error it has with the actual test results, and the power consumption of different configurations of notebooks is very different. Let's take a look at the laptop power test.

First, how much power is the notebook?

The power of each notebook is different, generally around 60W-70W, but the actual use is not much. Laptop accessories are generally designed with low energy consumption, and the power is generally between 1 and 3 of the desktop computer, or even lower, not to mention the power of the netbook.

The power of notebook computers is generally about 20W, which is not only related to screen size and height, but also to CPU. For example, the Centrino II is more power-efficient than the first generation.

The amount of power in a laptop is different, depending on what you do on your laptop: whether you use a CD-ROM drive to surf the Internet or watch a movie, or whether you use a removable hard drive and the brightness of the display. In addition, there is an automatic power management system in the computer, which can adjust your power at any time.

The algorithm of notebook power: if the output voltage is 16V and the output current is 3.75A, then the notebook power is 16X3.75=60 watts.

The power of single-display notebook computers is mostly around 90w.

Second, notebook power supply detection

Just as desktops are usually equipped with 300W power, most desktops with monitors are no more than 230w.

Our notebooks are far from this power when they are in use.

Physical test.

Testing tools: a multimeter, a plug, several wires, a plug and a wire stripper.

(notebook)

The variant of BenQ S73EG-101 has the following configuration: omission and strong configuration:

Description: power = voltage * current; AC voltage is about 240 volts.

When measuring: screen brightness 6 stroke 7 (maximum), wireless network card turned on:

Measurement results:

BIOS, self-test: power = 48W

Windows startup: 0.12power = 28.8W-38.4W

Enter XP Desktop standby: = 24W

Maximum standby performance of video card: = 36W

World of Warcraft window mode: = 52.8W.

World of Warcraft full screen mode: = 60W

Power off: = 2.88W (that's right! The notebook also consumes power when it is turned off.

Charging power: 15 watts

This is the power consumption of the machine in AC mode.

(desktop)

The CPU performance of this desktop is only 70% of that of a laptop; the performance of a graphics card is only 20% of that of a laptop; and the number of frames in World of Warcraft (fps) is only 25% of that of a laptop.

Test results:

Standby: 0.8A=192 (fainting four!)

17-inch CRT monitor: 0.3A=72

Host World of Warcraft: 1.1A=264

In other words, in standby, the power of a laptop is only 1/10 of that of a desktop.

In the state, the power of the laptop is only about 1/5 of that of the desktop.

In addition, the power consumption of the computer is about 4-5 hours per hour.

Our laptops run every 20-25 hours, thus saving time.

That is, the notebook power introduced by the editor above is generally large, I hope it can help you. For more notebook power information, please follow us.

At the end of this article, I hope it will be helpful to you.

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