Troubled with computer power calculation? PHP editor Banana will give you the answer! Computer power supply power calculation is an important technology, which affects the performance and stability of the computer. This article will take an in-depth look at how to calculate computer power supply wattage and guide you in choosing the best power supply for your system needs. Read on to learn more about this key technology to keep your computer running smoothly!
The formula for calculating computer power supply power is: Power = Current × Voltage. Generally, the power of a standard desktop power supply is between 300W and 500W. If you have special needs, such as needing to install more hardware, then you need to calculate the required power based on the actual situation.
First you need to know the power consumption value of each hardware and add them up to get the total power consumption value. The power consumption value of general hardware can be found in its specifications.
Next, you need to consider leaving some margin to deal with some unpredictable situations.
Finally, calculate the power of the power supply based on the total power consumption value.
1. Computer power supply power calculation formula Step 1: First calculate the power consumption required by the CPU
2. Computer power supply power calculation formula Step 2: Then determine the power consumption of the graphics card
3. Computer power supply power calculation formula Step 3: Determine the power consumption required by the motherboard, hard disk, and memory
In addition to the two major power consumers, the CPU and the graphics card, the motherboard, memory, The hard drive will also consume a certain amount of power, but the power consumption of these accessories is very low. Generally, their combined total will not exceed 30W-50W.
4. Computer power supply power calculation formula Step 4: Add the power consumption of the previous steps 1, 2, and 3
Finally, we add the power consumption of the previous steps 1, 2, and 3. You can get the total power consumption of the entire platform by adding it. For example, if the total power consumption of the platform you calculated is 580W, then just choose a 600W power supply. (Because what we calculate is the peak power of the accessory, the selected power supply wattage only needs to be greater than the calculated power. Unless you want to consider overclocking, then you need to add a certain margin on this basis)
1. Computer power supply power calculation formula Step 1: First calculate the power consumption required by the CPU
2. Computer power supply power calculation formula Step 2: Then determine the power consumption of the graphics card
3. Computer power supply power calculation formula Step 3: Determine the power consumption required by the motherboard, hard disk, and memory
In addition to the two major power consumers, the CPU and the graphics card, the motherboard, memory, The hard drive will also consume a certain amount of power, but the power consumption of these accessories is very low. Generally, their combined total will not exceed 30W-50W.
4. Computer power supply power calculation formula Step 4: Add the power consumption of the previous steps 1, 2, and 3
Finally, we add the power consumption of the previous steps 1, 2, and 3. You can get the total power consumption of the entire platform by adding it. For example, if the total power consumption of the platform you calculated is 580W, then just choose a 600W power supply. (Because what we calculate is the peak power of the accessory, the selected power supply wattage only needs to be greater than the calculated power. Unless you want to consider overclocking, then you need to add a certain margin on this basis)
1. When choosing a desktop computer power supply, the first thing to do is choose the brand. Famous brand power supply with good quality, low failure rate, sufficient output power, strong overload capability, low radiation, complete protection circuit, stable operation, high reliability and high power conversion efficiency. It is recommended to choose Huntkey, Great Wall and other brands.
2. The estimate of the rated output power of a desktop computer power supply is the maximum power consumption of the graphics card and the CPU power consumption, multiplied by a factor of 2.
3. The power supply requires good quality, stable voltage, small ripple coefficient, strong instantaneous overload capability, and adaptable to a wide input AC voltage, at least 120V~260V.
4. Pay attention to the parameters on the power supply nameplate. In addition to sufficient rated output power, you also need to pay attention to the output current of 12V1. When using a mainstream independent graphics card, the rated current of 12V needs to be greater than 17A or above.
5. When the power consumption of the whole machine is calculated to be around 350W, if you choose a 350W power supply, the 12V1 output of this power supply may be lower than 15A, which cannot meet the current demand of mainstream independent graphics, so it is necessary to Jump up one level to select. If you choose a power supply with a rated output power of 400W, there will be no problem.
To calculate the rated power of a computer power supply, you can use the following formula: Rated power = sum of power of each hardware component x coefficient. Among them, hardware components include CPU, graphics card, memory, hard disk, etc. The power of each hardware component can be obtained through their specifications or online search. Generally speaking, the power of the CPU and the graphics card are relatively high, and the safety and stability of the power supply need to be ensured to the greatest extent. Therefore, when calculating the rated power, the power value should be calculated according to a higher standard. The power factor can be selected based on your needs and personal experience. After calculating the rated power, you should choose a power supply slightly larger than the calculated value to ensure the normal operation of the computer.
If we talk about the life span after use, this is not necessarily true. It may break in one year, or it may not break in ten years. But if we talk about performance life, the longest is estimated to be 5 years. After 5 years, even the current mid-to-high-end configurations may even have web pages and QQ stuck by then
In fact, many computers are being operated The system was eliminated. The new operating system has high hardware requirements, and old computers are too slow to run the new operating system. Just be eliminated. This is the trend and law, and it is also the need of software and hardware manufacturers and dealers.
1. Entry-level computers are suitable for 200-300 watt power supplies. This type of computer usually has a low-end CPU and uses an integrated graphics card or a low-end independent graphics card. Choose 200 watts for integrated graphics and 300 watts for independent graphics. Insurance For the sake of convenience, a power supply of about 300 watts is basically enough.
2. Computers with mid-range configuration usually choose a 300-400 watt power supply. This type of computer usually uses a discrete graphics card, and the CPU performance is mid-range and the power consumption is medium. If the graphics card has a relatively high power consumption , it is recommended to use about 400 watts, and vice versa, 350 watts.
3. High-end computer configurations usually use power supplies of more than 400 watts. The higher the configuration, the higher the power. For example, in most cases, a four-core or six-core processor will choose a 400-watt power supply. If a six-core processor is paired with a high A high-performance independent graphics card requires a power supply of about 500 watts.
The power of a computer power supply is usually expressed in "watts" (W). The higher the wattage, the stronger the power output capability of the power supply. For a typical personal computer, power requirements depend primarily on factors such as usage, hardware configuration, and the total power required to power peripherals. Here are some common computer power requirements:
-Office computers: 300-500W, as they usually don't require powerful graphics performance and high-end processors.
- Gaming PC: 500-750W, because gaming computers usually require high-performance processors and graphics cards, and will use more memory and storage.
- Workstation computers: 750-1250W, workstation computers usually require more processors and graphics cards, as well as other high-performance hardware, such as large memory and multiple hard drives, etc.
Note: This is an approximate range only; specific requirements are affected by each computer's specific configuration and applications. When choosing a power supply, it is recommended to choose a power supply that is higher than the total power requirement of the computer. This can ensure that the power supply will not be overloaded, extend the life of the power supply, and improve the stability of the system.
Generally, the power of a computer is around 300W when it is running normally. In terms of maximum power, the host computer is generally about 150W. After adding the keyboard, mouse and fan, the power consumption of the chassis is about 220w to 300W. With the CRT monitor and speakers, the power consumption of a home desktop computer should be about 350W. The configurations are different and the power is also very different. Power evaluation can be performed with the help of third-party software.
Regarding the issue of computer power distribution, it is actually quite simple. The voltage is divided into five kinds of power supplies: ±5v ±12v and 3.3v, among which 3.3 and 5.0 are high-power parts. Different motherboards allocate power differently. Generally speaking, the rated power is about 130w for 3.3 and 5.0v, about 60w for 12v, and the others add up to only a dozen watts. This is about computer voltage and power distribution. The component distribution is: divided into CPU and integrated circuit, display, graphics card and other components. CPU power varies greatly, generally ranging from 80-120w. It will rise when it heats up. The monitor is 50-70w, depending on the size. The brightness of the graphics card is more than 30 watts, and other integrated circuits are about 20 watts
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