How to identify the quality of PC hardware

Eye view: from the hardware itself, identify

A. From the packaging anti-counterfeit labels do not

Purchase of hardware products, the first the first is to see product packaging, Kingston (Kingston) memory, for example, on January 10, 2005, in the domestic distribution Kingston products, all using the new "nano refractive logo, it is said security standard similar to the laser technology may be no fraud, this anti-counterfeiting stickers will replace two years of phone messages like pseudo labels, after genuine Kingston memory can be seen in the striking position, and without through a third party means such as telephone, Lenovo 3000 N500 Battery SMS to verify authenticity.

For other products such as motherboards, graphics cards, optical drives, etc., used packaging on the box generally have 800 other free consultation phone manufacturers of products via the telephone consultation is genuine. Such as SONY magneto-optical storage products sold in China (CDRW, DVDRW, etc.), licensed affixed with blue security label of the China Quality Inspection Association.

Label stickers from the two-tier structure, opened the label surface in the second layer of the sticker on the can see the security code, but the label on parallel imports and counterfeit security code to be investigated to reveal the surface immediately after purchase, call security on the label free telephone 8008106046, query the purchase of a product's authenticity. In addition, the SONY licensed affixed with a security label of "Sony original power of the rich agent". This is an important method of identification licensed, parallel imports and fakes (Special note: fake parallel also labeled anti-counterfeit trademark).

Two. To see the authenticity of the chip itself

A lot of JS on the product packaging is too true, and many users have to buy bulk products (such as bulk the L08S6C02 Battery CPU, memory and hard disk, etc.), resulting in the user identification can not be carried out through the packaging, so from the quality of the hardware itself process to identify. Such as CPU, memory and other hardware because of its core chip is exposed, which often is the product of JS the most easy to polish or false. We are very easy to use eye identification, the CPU, for example, many users buy the INTEL the P4 3.0G PACKER products, paid their money, took the goods, even carry home a parts CPU.

We take a look at this P4 3.0G PACKER the CPU in the product box label, indicating the secondary cache of 512K, this is entirely correct, but to open the package, look at the surface of the CPU above identifies the L2 cache has is 1M. The Earth all know, the P4 3.0GC (FSB800), L2 cache is only 512K, and thus, we can conclude that this is a fake PACKER CPU.

AMD XP2500 +, for example, in fact, counterfeit XP 2500 + Thorton core 2000 + polished from its core in Baton 2500 + the same, but the IBM ThinkPad Z61p Battery secondary cache is half closed, as 256KB. The original counterfeit method is to open another 256KB cache CPU surface connected by a pencil or silver paint L2 Jinqiao, so a price of only $ 400 more than the Thorton core XP 2000 + suddenly became a value of more than 700 yuan XP Barton2500 + JS thereon to seek nearly 200 $ profits. In addition, fake XP 2500 + L2 Jinqiao move hands and feet, so under normal circumstances JS fragile sign the key areas covered tightly.

Hynix modern memory, for example, now The hynix modern memory is almost nine out of ten is polished false note. We take a genuine and a polished hynix memory contrast, the surface, it seems not much different.

But as long as you look carefully, a unique circular pits on the corner of memory particles. Polished particles, the pit is illuminated, the particle surface is frosted feeling.

HP Compaq Business Notebook 2510p Adapter Memory polished coated with a layer of black paint, so the pit was almost filled, and with your fingers scraping the laser etching of the above will fall off, memory polished method is relatively simple, covering the coating after their own secondary laser etching, the implementation of home eye can easily see it.

3. Look at quality from the PCB layout

Graphics cards, motherboards and other products due to the heat sink core covering the time of purchase can not disassemble the heat sink, we identify from the above method, for its own PCB layout is reasonable, but also identify an important means of quality. Such as the one with the specifications, the same model, used the same chip graphics card, genuine public board Dell Inspiron 1521 charger PCB design, and some fake control costs, is used a non-public board design. "Non-public board" more time just for the product of the birth of the "low cost" or promotional needs. For example, understanding of the PCB due to a lot of people would like to wish to stay in the level of "a certain graphics card with the N-layer PCB, the PCB layers as possible like the JS will therefore have a chance ... a graphics card ... but obviously only with a four layer PCB, JS has chosen to say this card with a 6 layer PCB.

To identify the quality of the PCB, we have to start from subtle. For example, by oxidation of the observation blind hole and solder around, we can know the materials of the PCB, good or bad; observed the transmittance of the edge of the PCB, we can approximate thickness of the PCB. Of course, if the business can provide multiple different graphics cards in kind, then, then the identification of the work will be much easier to expand the Such as low-pass filter circuit can not be ignored, low-pass filter circuit (low pass filter circuit close to the graphics VGA output interface is composed of a lot of capacitance and inductance circuit, used to improve the stability of the display signals and, ultimately, the quality of output screen), few Dell Inspiron 1525 Adapter consumers pay attention to it, does have a lot of graphics card manufacturers to squeeze profit on him.

In addition, some motherboards fake products, using only the two-phase power design, genuine high-end products with 3-phase or 4 phase power design.

Or some low-quality products with low-quality capacitors and other components, so that will not only allow the board can not overclock, and even frequent crashes during normal operation. There are some fake products, even though the specifications are the same, but omitted some of the features, such as used to support three memory slots, and only two. Low BIOS version as well as low-end integrated sound card, or even omitted, such as IBM Laptop Batteries network cards, 1394, and additional features (if genuine any).