In addition to memory testing tools, all hardware on the computer can be tested through software. For example, CPU testing tools such as CPU-Z, WCPUID, graphics card testing tools such as 3DMARK, and NERO CD-DVD SPEED optical drive testing tools .And comprehensive hardware testing tools such as SISOFT SANDRA PCMARK EVEREST

Two ways to identify real and fake memory

The first way is to use CPU-Z

Download and install This software. The latest green version is less than 1M. Take the 1.52.2 version as an example. Run the software on the computer. After collecting the information, the test results will be displayed. Switch to the SPD tab in the CPU-Z main interface. That's it. See the memory information, including capacity, manufacturer's memory particle number, etc. If it is a polished memory stick, this information will generally not be displayed. You can select the memory slot on the left and test it one by one.

Using CPU-Z to test memory information is just a convenient method. The accuracy is not 100% because some memories will block information. It is best to use it with the help of other memory testing tools.

The second method is used MEMTEST

MEMTEST can detect whether the memory is stable during operation and the memory's ability to store and retrieve data. Genuine and good-quality memory sticks generally do not cause errors during operation. However, polishing strips do not necessarily It can be downloaded from all major download websites. This size is smaller, only about 500KB. After running, click the Start Test button to test. The software will automatically use all remaining memory capacity in the computer as a monitoring object. If not Error message. Generally indicates that there is no problem with the quality of the memory. In order to ensure the accuracy of the test, it is best to test for a longer period of time. For example, at least 20 minutes. The longer, the better.

When purchasing memory, please do not Trying to get a bargain and sell memory modules that are much lower than the market price. It is very likely that they are polished modules. In addition to memory testing tools, we can also check the authenticity of the memory by calling the anti-counterfeiting phone number of the memory module or logging on to the official website.

Fake memory is mostly made of low-quality goods pretending to be brand-name products. Since qualified memory chip production first cuts the silicon wafer into small wafers and conducts simple EDS testing to complete most of the functional tests of the chip, this is the pre-process; then the wafers are set up for I/O (input/output) and Protection, this is the post-process; and finally, comprehensive testing of the entire chip is the inspection process.

Since the inspection process takes the longest time, the cost is also higher. Some large manufacturers only do the pre-processing and then sell the primary products to other semiconductor manufacturers for post-processing. After completion, the semiconductor manufacturers do not conduct inspection processes or mark them before selling them to some memory module manufacturers. Some unscrupulous memory stick manufacturers purchase memory chips, manufacture memory sticks in handicraft workshops, and sell them under certain famous trademarks. The PCB board of the fake memory is of poor quality and rough in workmanship.

1. Fake memory may have the following characteristics

1. Whether the chip package is damaged.

2. The circuit board is rough in workmanship and has burrs and cracks.

3. Use the boot method to test for fake or bad SPD, and set "SDRAM Control By" to "BY SPD" in the BIOS.

4. Turn on the ECC verification of the memory in the BIOS, and turn on the computer to test the ECC parity to verify the authenticity of the memory.

5. Use potion to clean the chip and it will turn white and the writing will be rough.

6. The polished chip has scratches and the direction is consistent. The identification characters of real memory are usually darker.

2. Types of fake memory

1. Shoddy goods

JS shields some broken and available memory sticks, and some of the memory particles It still worked normally, so it was remodeled and sold on the market.

2. Overclocking

Usually low-quality memory is passed off as high-quality memory. For example, the memory of PC100 is forced to work at 133MHZ. This is a hidden danger of instability in the whole machine.

3. Confusing information

JS deceives consumers with the number of memory chip particles.

4. Polishing

Unscrupulous JS polishes some off-brand memory particles, erases the memory particle information on them, and puts the logo of high-end brand-name memory particles on them for sale.

5. Reuse of foreign garbage

JS takes the foreign garbage sent from abroad into the memory, removes all the remaining good particles, and reprints the PCB to assemble it to produce new memory .

3. Distinguish memory A and B

Memory A and B refer to HY memory. Strip A refers to genuine products. There are two types of genuine HY products. One is the original HY strip. The chip and base plate are all original to HY. The other is the compatible strip of HY. The chip is HY but the base plate is not original to HY. Factory.

The so-called B strips refer to polished strips. Polished strips are fake memory strips sold by marking non-HY chips with the HY brand. Some B strips are memory chips (white slats) that are not engraved with the brand name using a laser. With the HY brand, some unknown small manufacturers put their own memory chips with the HY brand and then sell them as fake modern memory sticks.

To tell the authenticity of HY memory, you mainly need to look at the number in the lower right corner of the chip. The real HY number is engraved with yin and yang. Generally it is not very obvious, the font is relatively thin, and you have to hold the chip diagonally towards the light to see it clearly. The polished chip number is generally very clear, with larger fonts and very obvious. You can also use banana water to swipe the chip. For real HY, the font will be displayed quickly after swiping the memory. B bar usually takes a long time.

4. Real and fake Hynix memory chips

The real Hynix memory chip has a circular groove in the lower left corner and a row of slightly darker printing in the lower right corner. These characteristics of the fake chip None. In appearance, the real memory stick has the original label, while the fake one has an ordinary sticker.

The real Hynix memory chips are arranged without gaps on the entire circuit, while the fake ones have obvious gaps; the circular grooves can be seen from the back of the real Hynix memory chips, and the fake Hynix memory chips On the back of the chip are three circular marks arranged in a straight line.

5. Real and fake Jinbang gold bar memory

The BLP package of real Jinbang gold bars uses a six-layer PCB board. The handwriting on the fakes is blurry, especially the gold letters, the circuit board is of poor quality, and the serial number and product name on the chip seem to have been polished. The words are printed and lack the texture of laser etching. The writing on the SPD particle is also blurred, and the color of the circuit board is darker.

6. True and Fake KingMax Memory

KingMax memory uses advanced TinyBGA packaging technology. The chip pins should not be visible from the surface. Fake KingMax memory uses It is a traditional TSOP package, so you can clearly see the pins extending from the chip.

Moreover, the TSOP packaged memory previously released by KingMax did not have the KingMax logo on the chip, so when purchasing, be sure to identify whether the memory chip is packaged in TinyBGA. Kingston's memory modules are better, and the most important thing is that they have good compatibility. I don’t know which generation of memory module you want to buy. The 3rd generation 2G memory is now about 60. The second generation is about 130. The first generation has been discontinued long ago. Hope it helps you, thank you for adopting