It can be said that it has them all!

For that more profit! ! There are a lot of fakes now! In order to make more profits, CPU counterfeiting has been around for a long time. Whether it is INTEL or AMD CPU, many counterfeit products have appeared in various periods.

The super method for counterfeiting CPUs is firstly REMARK "polishing", and secondly using them in bulk to pass them off as boxed.

The most troublesome thing is that although there are subtle differences between the appearance of these fakes and the real ones, it is difficult to distinguish them. You can't tell them just by whether the handwriting is clear or not. One of the most feasible identification methods is When plugging it into the motherboard for testing, be sure to choose a board with soft jumpers. After it is lit, its true color "650E" will be automatically displayed on the screen; never use a motherboard with only hard jumpers, because the merchant After adjusting the FSB to 133, when using this kind of CPU, "866" will be displayed. This is also the main means for merchants to confuse consumers. It's polished so you can spot it at a glance! !

Some JS now even disdains this kind of laborious REMARK. They simply add a package to some bulk CPUs and call them "original" and bulk CPUs. When assembled into the original package, the fan is usually different! !

Purchasing products in bulk and pretending to be in boxes is something that many unscrupulous merchants often like to do, and it has been around since ancient times. Why is there such a big price difference between boxed and bulk CPUs? A few "bad" packaging boxes are a piece of cake for counterfeiters. I’m afraid it’s harder to tell the difference in appearance between boxed and bulk CPUs! If you want to prevent being ripped off, the best way is not to buy the so-called boxed ones. It’s better to choose the bulk ones. As for the boxed ones, once they are broken, you have to buy them even if you don’t want to buy them, hehe.

Now let’s talk about how to identify fake boxed CPUs---the watermark of the genuine product uses a special process. No matter how you scratch it with your hands, even if you break the packaging paper, it will not be damaged. Wipe it off; for fakes, you only need to scrape it lightly with your fingernails, and slowly a layer of powder will be scraped off, and the words will fall off. The writing on the plastic packaging paper should be clear and legible, and the most important thing is that all watermarks should be It should be done neatly, not sideways, sideways, or upside down, regardless of the positive or negative aspects. A fake may have a neat front face, but the words on the back are slanted. Furthermore, the blue color on the left side of the front of the box is printed abroad using four-color technology, and the color is correct; if you compare it with fakes, it is quite easy to tell the difference. Use the pad of your thumb to rub the plastic packaging paper with appropriate force. The genuine product will not wrinkle easily, while the fake paper is soft and will wrinkle when rubbed. The sealing line of the genuine plastic packaging paper cannot be sealed at the bar code on the right side of the box. If it is sealed here, it can generally be judged as a fake.

Mainboard to prevent counterfeiting when purchasing a computer

Whether a computer is stable when working and coordinated with various accessories, the quality of the motherboard is very critical. The main reason why motherboards can be counterfeited is to take advantage of some users who are greedy for petty gains. A price difference of dozens of yuan can often lead to the rampant use of fake products. When users choose a motherboard, in order to prevent counterfeiting, the author recommends that you pay attention to the following five points:

First, confirm the brand. Motherboards from famous brand manufacturers themselves are a guarantee of quality. At present, the products of Asus, MSI, ABIT, Gigabyte, Metatech, Elite, Lenovo and other companies in the domestic market are basically reliable in performance and reasonably priced. Don’t buy those for cheap. A brand-name product that I have never heard of. Otherwise, even if the test machine can pass safely at that time, there is no telling what day it will suddenly die.

The second is to carefully pick out the workmanship of the motherboard. The poor performance of a counterfeit motherboard can actually be discovered by just recognizing and observing it. Sometimes it is not even necessary to power up the motherboard for testing. The shortest way is visual inspection. Use your eyes to observe whether the workmanship of the motherboard is exquisite. The four-layer and six-layer multi-layer boards will naturally not be fake. If you look at it against the sun, the opacity proves that its shielding performance is quite good. On the other hand, inferior double-layer boards or even single-layer boards can be seen at a glance. The welding of such inferior boards is also very confusing, and the wiring is not clear at all. It would be strange if it is fake.

The third is to carefully check the components of the motherboard.

The circuit materials and various slot interfaces used on the genuine motherboard must be high-quality components. The following levels of content need to be noted:

1. Socket In terms of slot materials, many motherboards of famous brands use products from famous OEM manufacturers such as FOXCONN. The materials are solid and the manufacturing process is excellent. The interface parts are made of thicker gold-plated layers, which can be plugged in repeatedly and ensure the connection with all kinds of cards. The contact is good to reduce the occurrence of soft failure of the motherboard.

2. In terms of capacitor material selection, high-quality and high-performance electrolytic capacitor products can ensure stable and pure output of the power supply of the on-board equipment, such as the common electrolytic capacitors distributed next to the Slot 1 slot. Brand-name motherboards all use Japanese products such as Sanyo and Panasonic, while off-brand motherboards cut corners on the quality and capacity of capacitors, the number of plug-in capacitors distributed, etc. The stability and performance of their products can be imagined.

3. In terms of interface identification, genuine motherboards such as those produced by famous brand manufacturers such as Gigabyte are currently in compliance with PC99 specifications, so the serial, parallel, IEEE1394 ports and PS/2 keyboard and mouse on the motherboard The interfaces are all colored interfaces. Fake products, on the other hand, will not use color interfaces due to more manufacturing cost considerations. In addition, for standard interfaces such as IDE on the motherboard, most branded motherboards have now adopted color identification methods. For example, one slot is white and the other is black. If the motherboard has the function of ATA66/100, the motherboard has one IDE interface. One is blue, one is white, but the fake ones are all black without exception;

4. The selection of motherboard batteries, motherboards like ASUS, MSI and other motherboards generally use regular batteries such as SONY/Maxell, etc. (As shown in Figure 5), while fakes mostly use off-brand batteries produced by other manufacturers. There are also some special circumstances that readers should pay attention to when purchasing. There are currently some brand motherboards, such as MSI’s 6309 series, which also use the method of installing the battery upright. The purpose is to occupy less motherboard space and nearby There is also a black buzzer, which is convenient for users to judge faults based on sound signals, but the fake battery is installed flat and has no buzzer, just like an ordinary motherboard. For this special case, everyone should be particularly careful when purchasing and read more relevant IT media purchasing articles to nip problems in the bud.

The fourth is to clearly identify the design structure of the motherboard. The key point is to check and analyze whether the design structure and board layout are reasonable, whether it is conducive to the installation of other accessories and heat dissipation, and whether the design itself meets the needs of possible upgrades and installations in the future. In some fake products, the CPU power interface, CPU fan power interface, memory and IDE interfaces are almost all crowded together. Not to mention upgrading, even installation is very laborious, and the wiring layout is also very confusing.

The fifth is to find relevant awareness signs. For a genuine motherboard, or what we call a genuine motherboard, relevant certifications are essential. This is just like the identity of each of us citizens. A motherboard can only pass relevant quality certifications, such as ISO, FCC, etc. The product packaging and related accessories of this motherboard should also be complete and correct.

In terms of outsourcing, for example, the packaging boxes of Gigabyte motherboards are mostly royal blue (Intel chipset) or green (VIA chipset), with bright colors and good printing quality, especially some small icons (such as The small text on ISO 9001 etc.) is very clear. The text on the packaging box is in simplified Chinese, and the packaging box is made of good material, with straight fold lines and the box body is not easily crushed. Another example is the packaging box of MSI motherboards. Most of them have a circular laser anti-counterfeiting label, but fake ones don't. Another example is that Gigabyte motherboards have product serial numbers affixed to them. When purchasing, users can see a long white sticker with a 10-digit number printed on it. There is a bar code above the number, and the font is thin and printed. clear. Moreover, there is the same label on the outer packaging of the motherboard, and the identification number is the same, while the fake ones do not, etc.

Of course, the above are just general motherboard anti-counterfeiting identification methods. There are many specific identification methods for some special motherboards: For example, Gigabyte's genuine motherboards, most of their AGP slots have comprehensive anti-loosening. Sheath; MSI's CPU socket materials are mainly MOLEX or AMP brands; some genuine motherboards have colored protective covers on their CD, AUX and other signal input ports, making it easier for users to plug and unplug correctly. Another point worth reminding readers is that if you are really a "little bird" who is no longer a good person and knows nothing about the brand, performance, price, appearance, etc. of the motherboard, it is best to bring one with you when purchasing the motherboard. A slightly more knowledgeable expert will accompany you. After all, today's profiteers are not good men and women. The author has discovered several cases of JS using off-brand motherboards to impersonate brand motherboards. Among them, some unscrupulous manufacturers are aware of counterfeiting and carry out mass production on a large scale; there are also individual profiteers who resort to the method of substituting fake products for genuine products and substandard products as good products. Anyway, the money you spend and the board you buy are not the same thing. Especially in the case of batch counterfeiting, it is even more difficult for junior users to guard against it. This is because most of these batches of counterfeit goods have been manipulated by unscrupulous businessmen. From packaging to trademarks, they are all so lifelike that even non-professionals can’t tell them apart. For example, for motherboards with the same BX or VIA chipset, there will be a price difference of about 400 yuan between the brand and the unknown brand. However, the genuine and fake motherboards are exactly the same in terms of packaging, motherboard appearance size, component layout and even the number of slots. Without any experience, I really can’t be sure. So the simplest thing is to warn everyone, cheap products are not good products. If you find that there are big differences in the quotations for the same motherboard, you must think twice before you act. 80% of the cheap ones are ulterior motives, haha!

If possible, after passing the visual inspection, users can also use the latest version of Hwinfo and other hardware detection programs to test the motherboard. It is best to eliminate possible problems before walking out of the store. Finally, don’t forget to ask the dealer to issue an invoice (receipt), and indicate the details and contents of the purchased product on the invoice (receipt) or warranty certificate to avoid unnecessary service disputes in the future. OK, at this point, I believe your motherboard has a certain guarantee, so feel free to use it!

Hard drive to prevent counterfeiting when purchasing a computer

What issues should everyone pay attention to when purchasing a hard drive to prevent being ripped off and eliminate fakes? We believe that you should start from the following points---

First of all, the price of hard drives has continued to fall recently. The main indicators of hard drives that everyone should pay attention to when purchasing are--the total capacity of the hard drive and the unit capacity of the hard drive. disc capacity. When purchasing these two things, if the prices are similar, you should give priority to the product with a larger total capacity. 160-250G single-disc capacity hard drives are today's mainstream products; secondly, you should also consider the speed of the hard drive. Second, if there are no special needs, a 7200 rpm hard drive should be your first choice. Furthermore, we should also pay attention to the cache of the hard disk. Mainstream hard disk products all use 8M cache capacity, and some low-end products mostly have a cache capacity of 2M. In addition, the seek time of the hard disk is also one of the important parameters for understanding the hard disk. It mainly refers to the hard disk. The average seek time, inter-track seek time, maximum seek time, average waiting time, etc., their units are all ms (milliseconds), the smaller their values ??are, the better; finally, learn about the heads of the hard disk, The internal transfer rate of the hard drive, the application of hard drive security technology, etc. are also important references when you purchase a hard drive.

In addition, we need to remind everyone that for hard drives, what JS likes most is to use small cache hard drives to pretend to be large cache hard drives, or low-speed hard drives to pretend to be high-speed hard drives and sell them to everyone. , earning the price difference between the two. Or simply sell repaired or second-hand goods to everyone. In the past few years, many incidents of inventory repair goods re-entering the market have to wake us up. A common way of counterfeiting hard drives is to use low-speed hard drives as high-speed hard drives to sell off the price. As we all know, the current price difference between a 5400-rpm hard drive and a 7200-rpm hard drive with the same capacity is about 100-200 yuan. Beginners must ask clearly when purchasing.

In addition, the amount of cache integrated on the hard drive and the capacity of a single disk also have a great impact on the performance and price of the hard drive. Nowadays, the cache of mainstream hard drives, whether 7200 rpm or 5400 rpm, has begun to use 2M as the standard. Everyone is Ask clearly when purchasing. Don’t just ignore them when you hear “Barracuda II, Gold Diamond”. In fact, their performance is very different among multiple generations. If the price is similar, you should try to choose the later products.

When purchasing a hard drive, don’t forget to ask the merchant to indicate the minimum three-year warranty on the delivery note. For example, there are many parallel-imported MAXTOR hard drives on the market. These hard drives do not have packaging boxes and do not have the MAXTOR national agent Lande label. Because these hard drives are not purchased through normal channels, they cannot provide complete after-sales service, and some only have a one-year warranty. We assume that your hard drive is damaged exactly after one year, then your hard drive will not be replaced. Therefore, when buying a MAXTOR hard drive, be sure to check whether it is a MAXTOR hard drive with a 3-year warranty from Lande. This is really critical! When you buy a genuine MAXTOR boxed hard drive, you must remember that it must have a packaging box, a Lande label, a national joint warranty label, a label from the general agent in various places, etc. The same is true when selecting other hard drives.

Finally, the quality of after-sales service is really important for fragile products like hard drives. Choosing products from formal agency channels and merchants with a good sales reputation and strength are the guarantee of obtaining good after-sales service. Today's genuine hard drives basically have a "three-year replacement" promise. This is very important. No matter how cheap a hard drive is, if its warranty period is short, who can guarantee that your hard drive will not have an "accident"? damage.

Preventing counterfeit memory when purchasing a computer

Today’s memory is really cheap. 1G has been sold for about 100 yuan, and how to choose memory has become a matter of great concern to users of new installations and upgrades. Since the current memory market is not yet standardized, products are mixed, and ordinary users lack the ability to identify memory, which leads to certain difficulties when purchasing memory. I hope that the identification methods introduced below will be helpful to everyone when purchasing memory.

In general, the memory on the market is mainly divided into brand memory and ordinary modern memory. There are two types of branded memory. One is the original memory stick produced by chip manufacturers such as Samsung and Hyundai; the other is the memory stick produced by Kingston, Kingbang and other manufacturers using original chips and designing their own PCB processing. Because these memories are very popular, there are many fakes on the market. The following is the specific identification method of these brands of memory:

Kingston is currently the memory brand most affected by fakes and parallel imports. This one. Kingston spends a lot of energy on improving anti-counterfeiting technology almost every year. But even so, sales of fake Kingston products remain high. The saying goes as high as the devil can be applied to Kingston’s anti-counterfeiting war. Last year, Kingston added the latest color-changing anti-counterfeiting technology to its original fluorescent anti-counterfeiting technology. Therefore, for a period of time, Kingston's fakes were suppressed to a certain extent. However, at the end of last year, Kingston’s counterfeit products were revived. Counterfeiting manufacturers have been able to imitate Kingston’s color-changing anti-counterfeiting technology. Although there are still some differences in color, it is very difficult for ordinary consumers if they do not have the color reference card provided by Kingston to agents. It is difficult to tell the difference, and this kind of fake also provides an anti-counterfeiting phone query function, and you can also get the result of being confirmed as authentic, but as long as you compare it with the genuine product, you can see that the anti-counterfeiting phone number of the fake is different! Kingston strips do not have a fixed chip, so the chips are different in each batch. Authentic and fake strips cannot be distinguished by the chip, but the PCB board of Kingston strips is unchanged and very distinctive.

All Kingston memories in China will have a memory anti-counterfeiting number manufactured using a special process. This anti-counterfeiting measure is to use 4 digits on the memory anti-counterfeiting label and a special process to imprint the memory number on the memory PCB board. The biggest advantage of using this anti-counterfeiting measure is that it is extremely difficult for counterfeiters to imitate if they do not have professional memory manufacturing skills. Therefore, using this method to make assumptions will give those who are counterfeiting The most painful blow. In addition, the PCB circuits of Kingston memory are very fine, and they are made of pins and holes. However, the fake strip PCB boards and Apacer PCB boards now on the market are similar. In addition, you can call 400 or the global network query website to identify the authenticity. Submit relevant memory product information to this website, and the website will help you identify whether the Kingston memory you purchased is counterfeit in a very short time.

This year Kingston has launched another memory that is 2/1 as wide as ordinary memory!! Narrow memory uses a traditional green PCB circuit board, and its PCB circuit board height is only about half of that of ordinary memory. The narrow 1G memory is equipped with 16 DDR2 memory chips with a capacity of 64MB on both sides, forming a 1GB specification. This memory adopts a large-area copper-clad design to prevent mutual interference of electromagnetic waves.

Jinbang gold bars: Jinbang gold bars use a unique BLP (bottom lead package), coupled with the Chinese character "金" on the memory particles, it is very difficult to counterfeit them. The word "gold" on the fake "gold bars" particles on the market is very blurry, and the color of the golden PCB board is obviously darker than the original. This kind of counterfeiting is very inferior, and you can tell at a glance.

Original Hyundai: Some JS labels some of the better-made modern memory sticks with ordinary modern memory sticks, then finds a box to put them in and sells them as modern original factory sticks, and the price is also lower than the real ones. Modern original strips are much cheaper. Modern original strips generally have the following characteristics: the memory particles are clearly written, the resistors are neatly welded (also on the quilt surface), the wiring is neat, the words "HYUNDAI KOERA" and passed safety regulations are printed on the edge of the PCB board, and the PCB board is more modern than ordinary The PCB board of the memory should be wider.

Original Samsung: In addition to 512M memory, most of Samsung’s original memory is single-sided memory. The double-sided Samsung originals in the market, 512M, are probably made by counterfeiters using 8M memory chips each and sold as Samsung original strips. Samsung has never produced this kind of memory. The current price of genuine Zaixing original memory is still relatively high. If the price is obviously low, be careful when buying it. Moreover, Samsung original memory sticks do not have the one-year shelf life of ordinary sticks. You should also pay attention to this when purchasing. Since the identification of original memory modules requires a lot of relevant knowledge, and most of the so-called original memory modules in the market are fake, it is generally recommended not to buy them. Among the most common ordinary modern strips, there are some products that are of good quality, but there are also products that use defective particles or even polished chips. In addition, you have to be wary of some manufacturers who use chips with serious defects to make replacement strips.

Whether it is brand memory or ordinary memory, we can use the following methods to identify it:

Observation method:

1. Observe the memory particles Whether the handwriting is clear and textured, read more for comparison.

2. Observe the production date of the memory chips (genuine memory chips are generally produced recently) and whether the number of each chip on the memory stick is consistent.

3. Observe whether there are traces of tin immersion and repair soldering on the pins of the memory chips.

4. Observe whether the circuit board is clean and tidy, and whether there are stains or scratches on the gold finger.

5. Due to the limitation of memory chip specifications, the number of memory chips will follow certain rules. If the number of memory chips is abnormal, it is likely to be a fill-in strip.

6. Branded memory circuit boards generally have clear manufacturer’s logos. In addition, do not judge whether it is original and genuine based on the presence or absence of a packaging box.

7. When considering memory with good reputation and good reputation as the first choice for purchase, be careful because fakes usually appear for these popular products.

8. Try to buy from brand memory agents and professional memory dealers.

9. When purchasing, you must ask for relevant receipts, and specify the brand, model, specifications, performance indicators, warranty period, etc. on the receipt in detail.

10. When you find that the memory sold in one place is much cheaper than other places, be careful. This store is most likely selling fake products, because the low price is a fake and shoddy product. the only advantage.

11. Walk around the market more and look at several companies for comparison.

Most of them are reproduced from the Internet! ! Hope this helps you