Basically not produced, including the lowest content is the fan

The only thing is to modify the bios boot screen

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IT168 Exclusive With the increasing popularity of computers With the popularity of computers, more and more families, organizations and individuals are using computers. In the domestic computer market, the way to buy a computer is nothing more than a branded machine or a compatible machine. The former is a computer produced by a manufacturer who uniformly assembles and assembles the appearance and configuration of the computer according to market demand, while the latter is a computer temporarily assembled according to personal requirements. Although the two are basically the same in essence, they are still very different due to differences in price, configuration, and performance. In China, the ultra-low cost performance of certain brands of computers has been criticized by DIY users. Since aspects such as design, manufacturing and sales have always been little known, the debate about the brand name of the machine is endless. Due to my work, the author knows a little about the details of brand machine manufacturing. Here we will answer all the doubts that ordinary users have about branded machines, and make a comprehensive analysis of the internal structure of their branded machines.

We hope that the relevant details in this article can help some users understand some actual situations. By the way, I would like to state that the relevant content mentioned in this article is not guaranteed to be applicable to all domestic brands.

1. The R&D process of brand-name computers

When talking about the development of brand-name computers, to apply what Wu Haijun, the boss of Shenzhou Computer in China, said, “Making computers in China is not just about screwing in a few screws. ". In other words, it can only be called "independent production" but it has not finally got rid of the concept of "assembly". Most of the CPUs are Intel, and the graphics cards are either NVDIA or ATI. The motherboard hard drive and optical drive should also be imported. But the difference is that branded machines usually undergo safety inspections after assembly, which is commonly known as "roasting machines." Only after passing these safety and stability tests can it leave the factory. This is something that compatible machines cannot match. For most brand phone manufacturers, appearance design accounts for more than 80% of the entire research and development workload. Professional industrial designers usually design the appearance of components such as chassis, keyboards, and speakers. Then according to the requirements put forward by the product personnel, many different solutions will be designed. However, most brand computer designers are not familiar with the internal structure of computers, so they tend to focus on appearance design and neglect to optimize heat dissipation performance by changing the internal structure of the chassis. After the shape design of the chassis, keyboard, and speakers is completed, it will be handed over to the upstream professional manufacturers to "open the molds." In addition, components such as keyboards, mice, and speakers will be manufactured by some professional manufacturers, and then they will be labeled with their own brand, also known as OEM. In addition, some strong domestic manufacturers will also do some research and development work on product functions. For example, "PC home appliances, dual-mode computers" and so on.

2. Main computer accessories types

Central processing unit

The central processing unit is the CPU, the core component of the computer. The key factor that determines the running speed of the computer. The country currently does not have the manufacturing capacity in this area, so it needs to be purchased from abroad. Currently, the corresponding manufacturers include INTEL and AMD, but the vast majority of the domestic brand machine market, from low-end home machines to high-end servers, still use INTEL CPUs. Why not use AMD? In fact, the reason for not using AMD processors is not due to technical factors. You can see in some technical evaluation data that CPUs of the same level are not much worse than INTEL. On the contrary, some aspects even surpass INTEL. But more importantly, in terms of channel promotion, the financial support provided by INTEL is much more favorable. You can find this phenomenon. In the advertisements of brand-name mobile phones when promoting their products, you can clearly find that there is an INTEL trademark. Based on these, INTEL reimburses part of the advertising expenses to brand phone manufacturers.

Motherboard

Generally speaking, the choice lies with the purchasing department. The product development department can only recommend which chipset to use. The most important thing is cost control. The market competition is so fierce now. , effective cost control becomes the first consideration. For some low-end and mainstream models, SIS is almost the only choice. This is also the reason why SIS can survive for such a long time despite poor sales performance in the component market. There are also a small number of ones using INTEL chips, such as I845GL and I865PE.

This is also the case when the same model of brand machine uses both SIS chips and INTEL chips. These are often difficult to reflect in the configuration sheet. The only requirements that brand machine manufacturers have for motherboards are stability and cheapness. Of course, strict testing will be conducted when selecting a motherboard. If instability or bugs are found during the testing, the manufacturer will immediately resolve them. Among them, the ones with the highest usage rate should be Elite, because many manufacturers are interested in its low price and stable performance.

Memory

Many brand-name machines use memory technology, and its quality and price are not much different from those in the retail market. Of course, memory is also one of the main components tested. Usually, a stable system platform is selected, the memory samples to be tested are installed, and common testing software such as the famous 3DMARK is used. After a long period of repeated loop testing, it is OK if there is no problem. In this regard, all brands of computers are basically the same.

Hard disk

Due to supply and price issues, the choice of hard disk is relatively random. Products such as Fujitsu and Seagate are relatively common. Nowadays, 7200-rpm hard drives have become mainstream on the market, while 5400-rpm hard drives have been gradually phased out due to the insignificant price difference. So when purchasing, be sure to ask what the hard drive's rotation speed is. If there is no mention of a 7200 rpm hard drive in the configuration sheet, it must be a 5400 rpm product.

Graphics card

In order to effectively control costs, low-end brand models basically use integrated products, that is, integrated graphics cards. Mid-range models around 5,000 yuan will use GEFORCE4 MX440, FX5200 or ATI products of the same level. High-end models priced around 10,000 yuan will use graphics cards such as FX5600 and ATI9600. The method of purchasing is also to find some Taiwanese manufacturers to OEM. In the actual sales process, the graphics card configuration sheet is often vague. For example, common high-performance 3D graphics cards share 64MB of video memory, so this must be integrated. There are many high-end independent single-plug 64MB graphics cards, most of which are GEFORCE MX440 and FX5200. Details can be asked at the time of purchase.

Optical drives and power supplies

The optical drives used in branded machines are basically the same as those in the retail market, and the quality of optical drives produced by various brands is now similar, so the selection is relatively random. Strong, you can see it everywhere from BenQ, LG, and Samsung. Because they all come from the same production line, there is no customization. Power supply is the main power supply component of the computer, and all major manufacturers choose it from a stable perspective. Therefore, it is more economical in terms of power supply, and most choose 180W and 250W power supplies. There are almost no products with high power such as 300W. However, the power supplies used have passed 3C certification. Some manufacturers have spared no expense in this aspect and even adopted UPS-type power supplies.

3. Computer assembly process

The assembly process of brand-name computers follows an assembly line approach. The first choice is to refresh the motherboard's BIOS, CPU location, memory and hard disk installation and wiring, etc. Compared with ordinary compatible machine assembly, it is much more scientific and less likely to cause problems. During the assembly process, all production personnel must wear anti-static rings to avoid electrostatic damage. System programs have special cloning programs that are directly cloned to the hard disk. After all the components are installed, the most recent and strict inspection process will be carried out. This is also the most critical step in the brand machine manufacturing process. Some powerful domestic manufacturers will spend huge sums of money to purchase a complete set of testing equipment from abroad, including high and low temperature workrooms and electromagnetic radiation testing. Then let the host run continuously on a dedicated test line. If problems such as a crash or restart occur during the process, the detection machine will automatically issue a warning. During the inspection, some machines will be extracted for high and low temperature testing and electric radiation testing. The former is to place the machines in environments of 0 degrees and 40 degrees without interruption. The latter is the radiation standard for testing machines. If it exceeds the standard, the manufacturer will take it back for improvement. Usually it can be offline after 48 hours of stable operation. Then through this series of tests, the computer stability and compatibility can be made higher. Compared with the assembly of compatible machines, it is more strict and safe.

4. Brand machine after-sales service

Regarding the warranty of brand machines, all brands of computers are now strictly implemented in accordance with the three guarantees regulations stipulated by the state. If any specified failure occurs within 7 days of purchase, the user has the right to choose to return or exchange the product. If there is a problem within 15 days, you can choose to exchange or repair it. Free door-to-door service will be provided if problems stipulated in the regulations occur within one year. After constant price competition, some manufacturers are also making a fuss about their services, providing three years of free door-to-door service for some of their models. What customers need to understand here is that when requesting manufacturers to provide three-guarantee services stipulated by the state, customers must present the purchase invoice and three-guarantee certificate. However, many manufacturers only indicate on their invoices that they can enjoy the national three-guarantee policy, which is not in compliance with legal regulations.

Through the above detailed introduction, I hope you can have a general understanding of the internal structure and production process of its brand of computers. Clearly understand the reasons why brand-name machines are more expensive than compatible machines and the differences between the two. However, there are still some brand-name machines on the market; low-quality accessories, flashy designs, extremely high repair rates, ineffective three-guarantees, etc. In fact, high quality, high stability, excellent service and widespread customer recognition are the true value of a brand.