For more profit! ! There are many fakes now! For more profits, CPU fraud has a long history. Whether it is INTEL or AMD's CPU, there have been many cottage products in different periods.
The super solution of making fake CPU is "polishing" firstly, followed by packing in bulk.
The most troublesome thing is that although these fakes are slightly different from the real ones in appearance, they are difficult to distinguish. You can't tell the difference just by whether the handwriting is clear or not. One of the most feasible identification methods is to choose a board that can be used as a soft jumper when inserting the main board. After lighting, it will automatically display its true color "650 e" on the screen; Never use a hard jumper motherboard, because the CPU will display "866" after the merchant adjusts the external frequency to 133, which is also the main means for the merchant to confuse consumers. Polished so that you can recognize it and come out! !
Now some JS even disdains such laborious remarks, and simply adds a package to some CPUs in batches, which is also euphemistically called "original package". Generally, the assembly of large-capacity CPU into the original packaging lies in the difference of fans! !
Packing boxes in bulk is also something that many unscrupulous merchants often like to do, which has existed since ancient times. Who told me that there should be such a big difference between boxed and bulk CPU? A few "rotten" boxes are a piece of cake for counterfeiters. I'm afraid the difference in appearance between boxed and bulk CPU is more difficult to distinguish! If you want to prevent being slaughtered, the best way is not to buy so-called boxed ones. We can choose some loose ones. Well, once it is broken, you have to buy it if you don't buy it, hehe.
Next, let's talk about the method of distinguishing boxed CPU fakes-the genuine watermark uses a special process, no matter how you scrape it by hand, even if the wrapping paper is buckled, it will not erase the security; Fake goods can slowly scrape off a layer of powder with a slight scrape with their nails, and the words will disappear at the end. The handwriting on the plastic wrapping paper should be legible, and the most important thing is that all watermark words should be neat, not horizontal or vertical, nor upside down, regardless of both sides. Moreover, fakes may be neat on the front and the words on the back are oblique. Then there is the blue on the left side of the front of the box, printed by foreign four-color technology, and the color is correct; If you compare it with a fake, it's easy to tell. Rubbing the plastic wrapping paper with the thumb belly with proper force makes the real paper not wrinkle easily, while the fake paper is soft and wrinkles when rubbed. The packaging line of genuine plastic wrapping paper cannot be sealed at the bar code on the right side of the box. If it is sealed here, it can usually be broken into fakes.
Buy anti-counterfeiting motherboard
Whether a computer can work stably and harmoniously with various accessories, the quality of the motherboard is very important. The main reason why the motherboard can be faked is that some users are greedy and cheap, and the price difference of dozens of pieces can often lead to a fake. When users choose the motherboard, in order to prevent counterfeiting, I suggest that you must pay attention to the following five points:
The first is to confirm the brand. The motherboard of well-known brand manufacturers is the guarantee of quality. At present, the products of ASUS, MSI, Shengji, Gigabyte, Mei Jie, Elite, Lenovo and other companies in the domestic market are reliable in basic performance and reasonable in price. Don't buy brand-name products that you haven't heard of. Otherwise, even if the test plane can pass safely at that time, it will not necessarily die suddenly.
Second, be careful about the motherboard work. In fact, the performance of the fake motherboard is poor, as long as you observe it, and sometimes you don't even need to power on the test. One of the shortest methods is visual inspection. Observe with your eyes whether the workmanship of the motherboard is exquisite, and the four-layer and six-layer multilayer board will naturally not be fake. If you look at the sunlight, it proves that its shielding performance is quite good. It is true that inferior double-deck boards or even one deck board can be seen at a glance, and the welding of this inferior board is also very messy, and the wiring can not be seen clearly at all.
The third is to carefully check the components of the motherboard. The circuit raw materials and various socket interfaces used on the plates of genuine motherboards must be high-quality components. Attention should be paid to the following aspects:
1. In terms of slot materials, many well-known brands of motherboards have adopted products from well-known OEMs such as Foxconn, with strong materials and excellent manufacturing technology. The interface part is all made of thick gold-plated layer, which can be plugged and unplugged repeatedly to ensure good contact with various cards and reduce the occurrence of soft faults on the motherboard.
2. In terms of capacitor selection, high-quality and high-performance electrolytic capacitor products can ensure the stable and pure output of the power supply of the board equipment, such as electrolytic capacitors distributed at the edge of the common tank 1. Brand motherboards are all made in Japan, such as Sanyo and Panasonic. However, the quality and capacity of capacitors and the distribution number of plug-in capacitors of miscellaneous motherboards cut corners, and the stability and performance of their products can be imagined.
3. In terms of interface identification, genuine motherboards, such as those produced by famous brands such as Gigabyte, have reached the requirements of PC99 specification, so the serial port, parallel port, IEEE 1394 port and PS/2 keyboard and mouse interface on the motherboard are all color interfaces. Fakes, on the other hand, don't use color interfaces because they are more concerned about manufacturing costs. In addition, for the standard interfaces such as IDE on the motherboard, most brand motherboards currently adopt color recognition methods, such as one slot is white and the other is black. If the motherboard has the function of ATA66/ 100, one IDE interface on the motherboard is blue and the other is white, but the fakes are all black without exception.
4. The choice of motherboard battery. Motherboards such as ASUS and MSI generally use regular batteries such as Sony/Maxwell (as shown in Figure 5), while counterfeit products mostly use batteries from other manufacturers. In addition, there are some special circumstances that readers need to pay attention to when purchasing. At present, some brands of motherboards, such as MSI's 6309 series, are also installed vertically with batteries. In order to occupy less space on the motherboard, there is also a black buzzer nearby, which is convenient for users to judge faults according to sound signals, but the fake batteries are installed in tiles, and there is no buzzer, just like ordinary motherboards. For this special situation, everyone should be especially careful when purchasing, and read more articles in IT media to prevent problems before they happen.
The fourth is to clearly identify the design structure of the motherboard. The key point is to check whether the design structure and board layout are reasonable, whether it is conducive to the installation and heat dissipation of other accessories, and whether the design itself meets the needs of possible upgrading and installation in the future. Some fakes, their CPU power interface, CPU fan power interface, memory, IDE interface are almost all crowded together, not to mention the upgrade, the installation is also very laborious, and the lines are also very chaotic.
The fifth is to find out the relevant cognitive signs. For genuine motherboards or what we call real motherboards, relevant certification is essential. It's like the identity of every citizen. Only when a motherboard has passed the relevant quality certification, such as ISO and FCC, the product packaging and related accessories of this motherboard should be complete and correct.
Taking outsourcing as an example, the packaging boxes of Gigabyte motherboards are mostly sapphire blue (Intel chipset) or green (VIA chipset), with bright colors and good printing quality, especially the small characters on some small icons (such as ISO 900 1) are very clear. The words on the box are simplified Chinese, the box is made of good material, the fold line is straight, and the box body is not easy to crush. Another example is the packaging box of MSI motherboard, most of which have circular laser anti-counterfeiting labels, while counterfeit ones do not. Another example is that the serial number of the product is posted on the motherboard of Gigabyte. When purchasing, users can see a white strip sticker with the number of 10 printed on it, and there is a strip-shaped entity code above the number, which is very thin and clearly printed. Moreover, on the outer packaging of the motherboard, there is the same label, and the identification number is the same, but the fake is not.
Of course, these are just general anti-counterfeiting identification methods for motherboards, and there are many specific identification methods for some special motherboards: for example, most genuine motherboards in Gigabyte have full-color anti-loosening sheaths; Moreover, the CPU socket material of MSI is mainly MOLEX or AMP brand; Some genuine motherboards have color protection covers for CD, AUX and other signal input ports, which is convenient for users to plug in and out correctly. Another thing worth reminding readers is that if you are really a "bird" who can't eat, you know nothing about the brand, performance, price, foreign products and so on of the motherboard. When buying a motherboard, you'd better bring a slightly better master. After all, today's profiteers are not good men and women, and the author has also found several cases in which JS impersonates a brand motherboard with a miscellaneous brand motherboard. Among them, some unscrupulous manufacturers knowingly produce fakes on a large scale; There are also a few profiteers who take the method of stealing the day and shoddy. Anyway, the money you spent is different from the board you bought. Especially in the case of mass counterfeiting, it is even more difficult for primary users to guard against it. Because most of these batches of fakes are made by unscrupulous businessmen, from packaging to trademarks, they are all perfect, if they are not professionals, they really don't know. For example, motherboards are BX or VIA chipsets, and there may be brands and miscellaneous brands around 400 yuan. However, the packaging, external dimensions, component layout and even the number of slots of the true and false motherboards are exactly the same, so it is really inaccurate without experience. So the simplest thing is to warn everyone that cheap goods are not good. If you find that the quotations on the same motherboard are very different, you must think twice before you do. Cheap 80% haunted, hehe!
If conditions permit, users can also use the latest version of Hwinfo and other hardware detection programs to detect the motherboard after visual inspection, and it is best to eliminate possible problems before leaving the store. Finally, don't forget to ask the dealer to issue an invoice (receipt) and indicate the details and contents of the purchased products on the invoice (receipt) or warranty to avoid unnecessary service disputes in the future. Well, at this point, I believe that your motherboard is guaranteed, so feel free to use it!
Buy anti-counterfeiting hard disk
What problems should we pay attention to when purchasing hard disks in order to prevent being slaughtered and put an end to fakes? We think you should start with the following points-
First of all, the price of hard disks has been falling recently. The main indicators that people should pay attention to when purchasing hard disks are the total capacity of hard disks and the storage capacity per disk. When you buy these two things, in the case of similar prices, give priority to the products with larger total capacity. 160-250G hard disk is the mainstream product now. Secondly, you have to consider the speed of the hard disk. If there is no special need, a 7200 rpm hard disk should be your first choice. Furthermore, pay attention to the hard disk cache. Mainstream hard disk products all use 8M cache capacity, and some low-end products are mostly 2 m; In addition, the hard disk seek time is also one of the important parameters to understand the hard disk, which mainly refers to the average seek time of the hard disk, the seek time between tracks, the maximum seek time, the average waiting time and so on. Their units are all ms (milliseconds), and the smaller the value, the better; Finally, it is also an important reference for you to understand the hard disk head, the internal transmission rate of the hard disk and the application of hard disk security technology.
In addition, we need to remind everyone that for hard disks, JS likes to pretend to be a large cache hard disk with a small cache hard disk, or sell a low-speed hard disk as a high-speed hard disk to earn the difference between the two. Or simply sell the returned goods and second-hand goods to everyone. In the past few years, we must be alert to the fact that many returned stocks have re-entered the market. The common means of hard disk counterfeiting is to sell low-speed hard disks as high-speed hard disks. As we all know, the price difference between a 5400 rpm hard disk and a 7200 rpm hard disk is about 100-200 yuan. Beginners must ask clearly when buying. In addition, the amount of cache integrated on the hard disk and the storage capacity of each disk also have a great influence on the performance and price of the hard disk. Now the cache of mainstream hard disks, whether it is 7200 rpm or 5400 rpm, has started to take 2M as the standard. Please be clear when buying. Don't turn a deaf ear to the words "Cool Fish II, Golden Diamond". In fact, their performance is very different from that of many generations. When the price is similar, everyone should try to choose the later products.
When buying a hard disk, don't forget to ask the merchant to indicate the minimum standard of three-year warranty. For example, there are many parallel imports of MAXTOR hard disks on the market. These hard drives have no packaging boxes, and there is no national agent Rand label of Maituo. Because these hard disks are not imported through normal channels, they cannot provide perfect after-sales service, and some of them only have a one-year warranty period. Let's assume that your hard disk is damaged after only one year of use, so your hard disk will not be replaced, so when you buy a MAXTOR hard disk, be sure to check whether it is a MAXTOR hard disk guaranteed by Lander for three years. This is really crucial! When you buy a genuine boxed hard disk from Maituo, you must remember that it must have a packaging box, a login label, a national warranty label, a general agent label and so on. The same is true when selecting other hard disks.
Finally, the quality of after-sales service is really important for hard disk, a fragile product. Choosing products with regular agency channels and choosing merchants with good sales reputation and strength is the guarantee for obtaining good after-sales service. Now the genuine hard disk basically has the promise of "three-year replacement", which is crucial. No matter how cheap the hard disk is, if its warranty period is short, who can guarantee that your hard disk will not be "accidentally" damaged?
Used to buy anti-counterfeiting memory items.
Memory is really cheap now. 1G has been sold to about 100 yuan, and how to choose memory has become a very concerned issue for new and upgraded users. At present, the memory market is not standardized, the products are mixed, and ordinary users lack the ability to identify memory, which makes it difficult to buy memory. I hope the identification method introduced below will be helpful for you to buy memory.
Generally speaking, the memory in the market is mainly divided into brand memory and ordinary modern memory. Among them, brand memory is divided into two types, one is the original factory bar produced by chip manufacturers such as Samsung and Hyundai; The other is Kingston, Jinbang, which uses the original particles to design the memory chips produced by PCB processing. Because these memories are very popular, there are many fakes on the market at present. The following are the specific identification methods of these brands of memory:
Kingston is the most serious memory brand infringed by fakes and parallel imports. Kingston spends a lot of energy on the improvement of anti-counterfeiting technology almost every year. But even so, Kingston's fake sales remain high. As the saying goes, the magic height is ten feet, which is more suitable for Kingston's anti-counterfeiting war. Kingston added the latest color-changing anti-counterfeiting technology on the premise of the original fluorescent anti-counterfeiting technology last year. So for a while, Kingston's fakes were suppressed to a certain extent. However, at the end of last year, Kingston's fakes revived, and counterfeiters were able to copy Kingston's color-changing anti-counterfeiting technology. Although there are still some differences in color, it is difficult for ordinary consumers to tell them apart without the color reference card provided by Kingston to agents. Moreover, this fake also provides anti-counterfeiting telephone inquiry function, and can also get the result of being confirmed as genuine, but as long as it is compared with the genuine, it can be seen that the anti-counterfeiting telephone number of the fake is different! Kingston strips have no fixed chips, so each batch of chips is different. True and false strips can't be distinguished by chips, but the PCB board of Kingston strip is unchanged and very distinctive. In all Kingston memories in China, there will be memory anti-counterfeiting numbers made by special technology. This anti-counterfeiting measure is to distinguish whether the four digits of the memory anti-counterfeiting label correspond to the four digits of the memory number engraved on the memory PCB by special technology. The biggest advantage of adopting this anti-counterfeiting measure is that without professional memory manufacturing level, counterfeiters are extremely difficult to copy. So adopting this method will give those counterfeiters the most painful blow. In addition, the PCB circuit of Kingston memory is very fine and needle-shaped, but the fake PCB boards appearing on the market now are similar to Apache PCB boards. In addition, if you call 400 or check the website for authenticity identification, you only need to submit the relevant memory product information to the website, and the website will help you identify whether the Kingston memory you bought is counterfeit in a very short time.
This year, Kingston introduced a memory with a width of 2/ 1, ordinary memory! ! The narrow board memory uses the traditional green PCB circuit board, and the height of the PCB circuit board is only about half of that of ordinary memory. Narrow board 1G memory, with 16 DDR2 memory bars with 64MB capacity on both sides, forming 1GB specification. The memory is designed with a large area of copper cladding, which can prevent the mutual interference of electromagnetic waves.
Jinbang Gold Bar: Jinbang Gold Bar adopts a unique BLP (bottom lead package) and the Chinese word "gold" is printed on the memory particles, which is difficult to fake. The word "gold" on the fake "gold bars" in the market is very vague, and the color of the gold PCB is obviously darker than the genuine one. This fake method is very inferior, which can be seen at a glance.
Original factory modern: Some JS will label some products with better workmanship as ordinary modern memory chips, and then find a box to pack them and sell them as modern original products, which is much cheaper than the real modern original products. Modern factory strips generally have the following characteristics: the memory particles are clearly written, the resistance welding is neat (with quilt cover), the wiring is neat, the words "HYUNDAI KOERA" are printed on the edge of PCB board, and the PCB board is wider than ordinary modern memory.
Original Samsung: Except for 5 12M memory, most original Samsung memories are single-sided memory. The original factory of double-sided Samsung in the market, 5 12M, should be processed by counterfeiters with 8M pieces of memory granules and sold as original Samsung strips. Samsung has never produced such a memory. The real original car memory is still expensive. If the price is obviously low, be careful when buying it. Moreover, Samsung original memory chips will not be the one-year shelf life of ordinary chips at all, so you should also pay attention to this when purchasing. Because it takes a lot of knowledge to identify original memory chips, and most of the so-called original memory chips on the market are fakes, it is recommended not to buy them in general. In the most common modern strips, there are some products with good quality, but there are also some products with defective particles and even polished chips. In addition, we must be wary of some manufacturers using chips with serious defects to make up the strips.
Whether it is brand memory or ordinary memory, we can identify it by the following methods:
Observation method:
1, observe whether the handwriting on the memory granule is clear and textured, and read more and compare.
2. Observe the production date of the memory stick (genuine memory sticks are generally produced recently) and whether the serial numbers of each chip on the memory stick are consistent.
3. Observe whether the pins of the memory particles have traces of tin and repair welding.
4. Observe whether the circuit board is clean and tidy, and whether there are stains and scratches on the golden finger.
5. Due to the limitation of memory stick specifications, the number of memory sticks will follow certain rules. If the number of memory chips is abnormal, it is likely to be full.
6. General brand memory circuit boards have a clear manufacturer's logo. Don't judge whether they are original by whether there is a packaging box.
7. Pay attention to the memory with good reputation and good reputation as the first choice to buy, because fakes usually appear for these popular products.
8. Try to buy from brand memory card dealers and professional memory card dealers.
9. Be sure to ask for relevant bills when purchasing, and indicate the brand, model, specifications, performance indicators, warranty period, etc. Details on the bill.
10, when you find that the memory sold in one place is much cheaper than in other places, you should be careful. This family is likely to sell fakes, because low prices are the only advantage of fake and shoddy products.
1 1, browse the market and compare more.
Most of them are reprinted from the internet! ! I hope it helps you.