How to calculate the profit from assembling computers? How to choose the power supply for assembling a computer?

How to calculate profit when assembling a computer? What factors should be considered when choosing a power supply? PHP editor Apple has compiled the profit calculation method and power supply selection guide for assembling computers for your reference. The details are as follows:

#How to calculate the profit from assembling computers?

The profit of assembling computers is very low. For example, for a 3000 computer, our profit is about 5%, generally not more than 10%, because this is a fully competitive market, there is no No matter what the big difference is, you can know the approximate base price by asking several companies. The profit is quite slim, because the technical content is not high, and anyone can build a computer as long as they have the accessories.

How to choose the power supply for assembling a computer?

1. Power, first look at the power of your own power supply hardware, and look at the rated power of your graphics card and CPU.

The simplest algorithm is to add the graphics card and CPU, plus 200W. If the power is not enough, no matter how good the brand is, it will pale in comparison.

Excessive performance will feel like a waste.

2. Check the size of the chassis to see if it can fit. If it can’t fit, replace the power supply and chassis, which is a bit troublesome!

3. For wires, you can choose full modules, straight-out cables, or semi-modules. Full-module assembly is simpler.

4. Power supply efficiency and quality. Nowadays, power supplies have various solutions, such as DC-DC, EMI filters, capacitors, etc.

Solid capacitors in power supplies are better, and single-channel 12V current is better. A friend who doesn't install the computer often can't understand many parameters. Simply buy a good power supply with confidence. Look at the brand. Taiwanese and American Corsair products are not very cost-effective. In fact, they are a bit exaggerated. Domestic power supplies include Great Wall, Huntkey, Cooler, etc. to choose from.

My friends around me use Great Wall power supplies the most. Domestic power supplies from Great Wall are used in civilian, military, aerospace, supercomputers, servers, etc., which shows that they are of excellent quality. A 400W bronze power supply for home and office use is enough. Games, etc. require more than 500W, and both bronze and gold medals are acceptable. The efficiency and quality of gold medals will be better than bronze medals.

How to choose the power supply for assembling a computer?

The power supply for assembling the computer should choose a national standard brand product with a power that is at least 1/3 greater. If the power consumption of the host is 350 watts, then a nominal power supply of 450 watts or more should be used

How to calculate computer power supply?

1. Computer power supply power calculation formula. The first step: first calculate the power consumption required by the CPU.

Let’s start with the key points. Based on the power supply requirements of the 10th generation Core processor, this means Its TDP 65W processor requires a power supply with at least a continuous power of 12V×95%×23A≈263W and a peak power of 12V×95%×30A=342W on a 12V power supply (multiplied by 95% because the voltage is allowed to have ±5% Deviation, calculated based on -5%), a TDP 125W processor requires a 12V power supply with at least a continuous power of 12V×95%×26A≈297W and a peak power of 12V×95%×34A≈388W.

Of course, at this time we have only calculated the power required by the CPU, and then we have to add the power of the graphics card, because the graphics card is also a very important 12V power supply object, and its requirements are not inferior to those of the CPU.

2. Computer power supply power calculation formula Step 2: Determine the power consumption of the graphics card Power consumption (based on the FE version or the public version), the actual full-load power consumption of the mainstream RTX 2060/2070/2080/2080Ti is about 160W, 180W, 230W, 260W, and the full-load power consumption of the RX 5700 and 5700 XT graphics cards is Around 170W, 220W. In other words, for mainstream platforms, you need to leave a power margin of no less than 200W for graphics cards. For high-end and flagship platforms, you need to leave a power margin of no less than 300W for graphics cards. Graphics card usage.

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

How long is the lifespan of an assembled computer power supply?

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.

How to connect the power cord of the assembled computer?

When assembling the computer power cord, you need to connect the power cord to the power supply and the computer host. The following are general steps:

1. Disconnect the power supply: Make sure the power supply and computer host are powered off, and unplug the power plug.

2. Connect the power supply: Insert the plug of the power cord into the corresponding socket of the power supply. The socket on the power supply is usually located on the back of the power supply and has a specially shaped slot to ensure that the plug is connected correctly.

3. Connect to the host: Look for the power interface on the back of the computer host, usually located on the top or bottom of the host. Plug the other end of the power cord into the power socket of the computer host.

4. Fix the cables: Use cable ties or wire harnesses to fix the power cords around the host to ensure that the cables are neat and safe.

5. Check the connection: Make sure the power cord is tightly connected to the power supply and computer host socket without looseness.

6. Repower the computer: Insert the power plug into the power socket and turn on the power switch to power the computer.

When connecting the power cord, please make sure to choose a power supply that meets the hardware requirements of your computer, and ensure that the power cord is properly installed and assembled to ensure a secure and safe connection. If you encounter any problems during connection, it is recommended to refer to the manual of the power supply or computer host, or seek professional help. Also, be careful when assembling the power cord and make sure to follow relevant safety operating procedures to protect your own safety.

Assembling the computer power supply does not turn on?

It may be a power problem! It's very simple. Unplug everything that's plugged into the motherboard from the power supply. Then use a paper clip on the 20 4-pin end to connect the green wire to any black wire. If the power supply fan is spinning, then The power supply is good and can be ruled out.

After confirming that the power supply is good, connect the motherboard power supply and CPU power supply. If the independent graphics needs power supply, also connect it. However, if there is integrated graphics or nuclear graphics, it is recommended to unplug the independent graphics first (click When it lights up, it appears independently on top). Then unplug the hard drive indicator light, power indicator light, and reset button cable (leave only the power-on button), and then turn on the computer. If it cannot be turned on, it means that the connections between the indicator lights, the reset button, and the power-on button are wrong. !

How to calculate computer power attenuation?

If you want to calculate the attenuation of computer power, you mainly need to look at its power to draw a conclusion. Connect the power cord to the socket according to the normal voltage output standard and plug it into the power interface of the computer host to start. Long-term use will cause acid-base problems in the power supply, and your host will be unable to start. It takes multiple presses of the switch to start, which means the power supply has decayed.

How to calculate the rated power supply of a computer?

Method to calculate the rated power:

5V 24A 5=29 times 10=290w

This is rated power 290w, version 1.3, only one channel 12V

The power supply of version 2.0 and version 2.2 has an extra 12v2. The calculation method is;

(12V1 12V2 10) multiplied by 10 = rated power

For example, Huntkey wide Wang 2nd generation 12V1=10A.12V2=12A, then it should be

(10 12 10)*10=320

The method to judge the power of ATX version 2.03 is---5V maximum output current Multiply the value by 10 to get the approximate rated power value. For example, if the 5V maximum output current value is 25, it is 250W. The maximum output current value of 5V is 30, which is 300W.

The way to judge the power of ATX12V version 1.3 is---the maximum output current value of 5V plus 4 times 10. For example, the maximum output current value of 5V is 21A, then the power is (21+4)×10=250W. Similarly, (26+4)×10=300W, (18+4)×10=220W. With this formula, you can roughly estimate the power rating of your power supply.

The way to judge the power of ATX12V version 2.0/2.2 is-(the sum of 12V1 and 12V2 plus 10)X10, which is roughly equal to the rated power.

How to calculate the power of computer power supply?

Computer power supply power refers to the maximum power output that the computer power supply can provide, usually in watts (W), and its calculation formula is voltage times current. When calculating power supply, you need to take into account the power requirements of all hardware components of the computer, including CPU, graphics card, motherboard, hard drive, etc. Generally speaking, an ordinary home computer requires about 300W of power, while some high-performance gaming computers or workstations require higher power output. In order to ensure the stable operation of the computer system, it is recommended to choose a power supply with slightly higher power than required to meet higher stability requirements.

At the same time, the energy efficiency level of the power supply also needs to be considered to ensure that the power supply can efficiently utilize electric energy and reduce energy waste when working.

When selecting a power supply, you also need to pay attention to factors such as safety, stability, and noise to ensure that the power supply can work properly and is harmless to the computer and users.

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