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not buying laptops buy other appliances, there is such as Gome, Suning and other very formal shopping malls, most laptops are only sold in computer stores in. For the consumer, will encounter in the store to buy the biggest problem is not regular. If you are unfortunately JS, then we hard-earned money may have been cheated.
many laptop users have purchased a common complaint, to buy back the products that are this or that, or even buy parallel imports, repair the goods, etc., and always a lot of JS to meet state regulations do not give consumers reason to refuse replacement (provisions have become obsolete in many countries). In my view these issues are largely a matter of fact can avoid that hurdle in the testing machine. As long as the good this last hurdle, you can avoid a lot of trouble later, on the one hand they are responsible (thousands or even tens of thousands of not a small sum), on the other hand be able to combat the arrogance of JS, so that they learn what is the integrity of business.
following the writer's experience under the general procedures and the actual operation machine to give you on the screenshots.
First, we must emphasize that no payment before the \ No matter what you mentioned requirements, such as commitment to non-legitimate demands like dead pixels, JS surely agree. Therefore not completed before the testing machine must remember not to rush to the money paid to JS, or else to have found the problem, \
1, packaging and box items
First, check the packaging is complete and correct. Books for many brands, the packaging is sealed. Therefore, whether the first step is to check the packaging to open the scene. Shopping is to buy Tashi, in fact, this is a consumer psychology, and no one wants to just buy a new factory goods, rather than left to pick someone else, or even repairing goods. But there are some consumers do not pay attention in this part, Hu Hu passed Mama, why do this? Purpose is very simple, to prevent the quality problems of products to buy or even repair the goods.

For example drawing
For example drawing
inserted one by one the U disk USB interface on each to see whether the system can read the data inside, ensure that each USB interface to work properly. As for the inspection of other interfaces: audio output interface, only need to bring ear plugs, listen there is no sound on it; the microphone port, then plug in an external microphone, you can check; and S Video, 1394, VGA port, reader, etc., able to do so can bring the appropriate cable and memory card to be checked.
For this step, some people think is not necessary, but I think is more important, from the perspective of their own responsibility, it should at least check the USB interface.
5, the LCD screen LCD screen test

special focus on whether the dead pixel test on the detection of dead pixels on this we can use NOKIA TEST software to check (see below), which shall not need to install the software, the file size is only 580KB or so.

COLORS running NOKIA TEST in the test, NOKIA TEST will be given followed by white, red, green,[link widoczny dla zalogowanych], blue, black to detect the screen, through this test we can find the LCD screen Are there bad points, here to draw attention to check the time must be careful, especially in small white highlights very difficult to detect. In addition to detection of dead pixels
outside, NOKIA TEST also detects a lot of projects, such as the geometric image distortion, brightness and contrast, focus, resolution, jitter, text sharpness and so on.
below can give you about a response time of LCD indirect test software DisplayX. It can also detect whether the dead pixel LCD screen, the other can breathe effect, 256 gray levels (the better LCD screen display, the 256 gray more obvious) and so on (see below):

In addition to these tests in addition, DisplayX biggest feature is the ability to indirectly test the delay time (see below), from the mobile to find out the box does not smear piece, which corresponds to the time that you LCD laptop screen delays.

LCD screen has dead pixels, just like beautiful face hemorrhoids, how much will destroy the effect of mood, so I stress again to buy other books of special tests can not do it, but NOKIA TEST or DisplayX sure to bring.
6, CPU detection (with photo Detailed)

many consumers think that CPU is the most difficult start to cheat JS components, but in fact, some of the JS is the use of consumer psychology, desperate Shangmian an issue in the BIOS, the low-frequency processors into high-frequency processors, to fool the operating system, but also to consumers kept a hand. In fact, if you have special software testing, JS , these look very childish behavior will be exposed to in your very eyes.
CPU detection tool, the most common CPU-Z is the software, its powerful. CPU-Z does not require installation, the compressed size of only 200 KB , its very detailed CPU detection, we can see next Figure:

issue to note here is that the best to bring the latest version of CPU-Z software, so as not to appear on the new processors can not correctly identify the phenomenon.
If you think CPU-Z is not enough professional, consider this special Intel processor, Intel Processor Identification detection software now use the program. This software requires installation, the installation file is about 1MB. After installing the run shown below:

software can be tested CPU frequency, system bus, cache, support technology, CPUID data, etc., is the Intel processor detected authority of the software. The same test is best to bring the latest version of the Intel Processor Identification using the program, so that it will not appear on the new processor can not correctly identify the phenomenon.
7, chipset detection (with photo Detailed)

chipset detection just let you buy the books you more clearly what exactly chipset used, so you feel more at ease only. The software is recommended Intel Chipset Identification Utility. This software is relatively small, and does not require installation . The results can be obtained directly after clicking (see below):

This software is testing the authority of the Intel chipset software. The same test is best to bring the latest version of the Intel Chipset Identification Utility, this will not appear on the new chipset can not correctly identify the phenomenon.
addition for some chipsets, such as the 852GM, 855GM, the software identified the same result, we can use other software to detect, such as mentioned Everestpro behind the software, test the screen as follows:
8, memory testing (with photos explain) the previously mentioned software in addition to CPU-Z can detect CPU, the memory capacity can, frequency, timing detection ( see below) to see whether the memory JS Yin you: In addition to CPU-Z this software, Everestpro memory can be detected. Everestpro relatively large heads, 10MB or so, no need to install, but its strong performance, the notebook computer can conduct a detailed inspection. Here we mainly use it to test the memory (see below), the information is very detailed,[link widoczny dla zalogowanych], even the date of manufacture can be detected. 9, the graphics card detection (photo Detailed)

detection of graphics card can also be achieved by Everestpro software, Everestpro the display of graphics chip can detect the frequency, memory frequency, memory bits width and so on, very comprehensive (see below), you can clearly show you whether the card on the books shrink.

card detection testing in addition to other hardware specifications, will depend on its practical application, this can be famous 3Dmark01 software to test, this test can detect through the entire system stability , if you can not finish the entire test, then the books there in the compatibility or stability problems. 3Dmark01 software to install, the entire installation process is relatively large, nearly 40MB, but dealers are generally available in the software. After installation, the software interface to run as follows, click on the \

after completing the test, 3Dmark01 will give you a score card to play, pay attention to whether the score of the score card should match on each card in 3Dmark01 score under the circumstances, the user you can find out in advance online. Here we must note that if you use the battery test, the last test scores out of scores of lower than normal, such as the ATI 9600 graphics scores using the battery only 3000 a larger share.
course, you can bring 3Dmark03, 3Dmark05 software testing, test methods and 3Dmark01 As such, I no longer wordy.
10, the hard drive detection (photo Detailed)
for the detection of the hard disk, you can use more specialized software to achieve HD TUNE. The software does not require installation, only 300 KB size. After running the interface as follows:

can see the very comprehensive information can be detected, the hard drive model, serial number, capacity, transmission mode, cache size, hard disk temperature, etc., can also be used \

the only shortcoming of this software can not detect the hard drive speed, this can be the previously mentioned Everestpro software to compensate. Everestpro software can detect the hard disk of the many parameters, for us there is not much sense in terms of ordinary consumers, our only concern is the speed and cache size (see below).

careful reader may note that earlier detection of the use of HD TUNE out of the cache capacity is not a test , Everestpro have measured out.
11, test drive (with photo Detailed)

test drive also has a special software NERO INFOTOOL. The software does not require installation, the size of only 200 KB, very convenient to use, directly run on it (see below):

NERO INFOTOOL can not only detect the drive model, cache size, read or write speed, can detect read or write CD-ROM formats are supported.
12, the battery detection (photo Detailed)

battery for notebook, more important, direct impact on the portability of laptops, so the detection of the battery is in addition to the appearance of a new observation, but also must use special software for testing. Some brands such as IBM, SONY are equipped with special software to detect the frequency of battery charging, and HP notebook which can be detected in the BIOS battery charging times. Detected by the software or BIOS, if that charge more than 3 times, then the battery is used, the user can ask the dealer replaced.
can not detect the battery charge for the number of other brands, we can be through a special software to test Batterymon. Batterymon software to install, the installation file is relatively small head, only 400 KB. After the installation and operation, the interface is as follows:

Batterymon can detect the total battery run time (theoretical value), can detect the battery charge and use the rest of the time, here we should note that New books of the battery power is low will be 3% (the example here is the author of the books used, of course, electricity will be higher than 3%). After completion of these projects
detected, click the following \

here to pay attention to see the \. The author spent six months this laptop, the battery is fully charged capacity of the design capacity and there are differences is normal.
I believe that this testing must be done, be able to avoid detection by the used batteries to buy, save a lot of trouble later.
13, the system detects (with photo Detailed)

end of each single test, the final step is to test the entire system. Here we recommend the use of this software PCMark04, PCMark04 need to install, the installation file size is about 36M, it can on the CPU, memory, graphics, hard drives, system testing, and finally give a score, the higher the score indicates better system performance. The operation screen is as follows:

through this test also can detect the stability of entire books, as well as a comprehensive performance accessories.
this point, basically the end of the testing machine program. Finally, I draw attention to the inspection business to provide the gifts, are all correct before we can pay to take the leave.
packaging is opened if you encounter the situation, you may request the replacement of JS,[link widoczny dla zalogowanych], JS this time will make every effort to persuade the general to be so explained: \ What other people said do not open the read .... .. \ To some extent, JS, then there must be some truth, there are indeed some of the books were opened, there is no quality problem, not a repair goods. But how can you ensure that the books opened Taiwan to be no problem, even with the JS in the one-sided? Think about what you buy, but a few thousand or even million dollar laptop ah, but not hundreds of pieces of small appliances, the bet can not afford to play. Therefore I suggest, do not listen to JS's big talk, straightforward for a new one called him, or leave immediately (you do not give you the money anyway).
here to remind consumers to pay attention to this situation, some JS extremely treacherous, is packaged in order to eliminate traces of being opened, he would in the original tape on the \, do not look carefully, do not see a two-tape. After treatment, almost like the new packaging.
sure had not opened the packaging is new, the take over of the check items inside the box.
typical laptop open the packaging, in addition to books in addition there is also the power adapter, accessories, product manuals, certificates of UNPROFOR (the same ID number and laptop), warranty card record card, the operation is also equipped with system installation disk, restore disk (some models not equipped with). So many things, be sure to check them one by one to see if there is no lack, in so doing we can prevent unauthorized JS deducted out of the box accessories, and can further confirm whether this table books were opened box. Inside the box the laptop will have a packing list, even if no separate packing list will be specified in the instructions in the notebook name and quantity of items within the box. Everyone can check the packing list or manual. Also, check whether the operating system installation disk operating system on the machine in line.
2, check serial number

check the confirmation, the next step is to carefully check your laptop's serial number. This step is the choice of foreign brands is very important friends laptop, if there is inconsistency in the serial number, there may be parallel or assembling goods. As for the domestic notebook computer, if there is inconsistency, then this notebook computer is opened or is replaced, there may have quality problems or repairing goods. No matter what the situation and immediately called JS replace it.

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Tell us how
check the following serial number, serial number, usually appear in these areas: body, battery, outside the box, manuals, certificates and other places of UNPROFOR. Here to explain, not the previously mentioned areas are marked for each serial number, according to each brand differ. Battery, outside the box, manuals, certificates and other UNPROFOR better place to find the serial number, and serial number of the body generally in the base of the notebook chassis. Such as IBM's ThinkPad notebook computers, the bottom of the machine product model and serial number, the product model ending in the last one is C,[link widoczny dla zalogowanych], said China. Can enjoy a three-year International Warranty, so even out of the country do not have to worry about.
the check serial number is consistent, we must also check whether there had been altered, are re-posted at the scene, because some powerful little JS to fake the serial number of some of the brand. In addition, some books there is a way to check the serial number, at boot time, entered the notebook's motherboard BIOS, check the serial number and BIOS serial number of the fuselage are the same. If all places have the same serial number, then explain the source of this basic model does not issue; if there is an inconsistency, then this model does not absolutely have to, the solution is only one word: \ technology more and more fraud, this step must be carefully, the best access to the Internet or by phone, check more insurance. In short, if they find a little tricky, and must not compromise.
3, check the books look

visual inspection is necessary because the present practice of electronic products in the country three packs of law, problems can be returned for the definition of the appearance was rather vague, even if they retire, JS usually after the Selection Committee is caused consumers to buy and nothing to do with him, to the rational can not tell when, in order to avoid face such trouble, so be sure to check the time of purchase the books look. Think about it, buy new books, there is the appearance of the problem, how many will make people unhappy heart.

first check whether the shell scratch, Diaoqi signs, to ensure that shell intact; second look at the shaft with no cracks and loosening of the situation; if it is low-cost machines, but also to check whether there is mold is not tight or side bite the question whether the rough seam; then check the LCD screen to see if the situation does not scratch, because the scratch will affect the visual effects; and then check the keyboard keys, note that there is no side higher than the situation, or a few the phenomenon is not flat keys; the following check shortcut key, touch pad buttons, and multimedia playback keys, but also note that there is no phenomenon of uneven; last check the battery, pay attention to the fineness of the battery is new, apart from the appearance inspection, need to use specialized software for testing, I put back about this.
checked if there is no problem, you can make the following special test for the laptop; if there are problems , the firm called JS-for, I believe that as long as you do not pay at this time, \ would be very useful, JS goods will not take no excuse to refuse.
Finally, I would also like to draw attention to this situation, it is bought by a \ breach actually occurred, then took the books to find replacement JS, JS consumers that this was after buying back caused by improper use, not only to repair to replacement. Thus, for some brands of books , we check to be particularly careful, do not lose a piece of place, or after a problem when the time is more troublesome.
4, the interface checks

visual inspection confirmed that there is no problem, after completion, following the special boot for notebook testing, these tests need to use some professional testing software, so before buying the software ready to put, there is brought together with U disk. In the special inspection before the first use of U disk check can be USB, because we often use the USB interface is an interface to, so I suggest that you check the best buy when they check USB interface is intact.