13 testing machine steps for buying a notebook computer
Unlike the purchase of notebook computers to buy other appliances, there is such as Gome and Suning wait for a very formal shopping malls, the majority of notebook computers on sale only in the computer store. For the consumer, to purchase at retail outlets, will encounter a major problem is irregular. If you are unfortunately JS, then we hard-earned money may be deceived to go.
Many netizens have purchased laptops often complain that the existence of products laptop battery to buy back the question one way or another, and even buy parallel imports, repairing goods, etc., and are always a lot of JS to comply with state regulations do not give consumers the reasons for finding a way to replace (and many State regulations have become obsolete). In fact, in my opinion these problems can be largely closed to avoid this in the inspection machine. As long as a good job of this last one off, you can avoid a lot of trouble later, on the one hand they are responsible for (a few thousand or even 10000 is not a small amount), on the other hand be able to combat the arrogance of JS, so that they learn what is the integrity of business.
First, we must stress that in no payment until the "customer is God," this sentence will never be established. Whether you raise any demands, such as the commitment to non-legitimate demands like dead pixels, JS would certainly agree. Therefore, do not remember until the completion of inspection Inspiron 1720 battery machines must not be so eager to pay money to JS, or else to have found a problem, "Customer is God", that is not established.
1, packaging, and box items
First of all, check the packaging is complete and correct. For many brands of books, its packaging is sealed good. So first step is to check whether the opened outer marks. To buy things is to buy from anxiety, this is actually a psychology of consumers, and no one wants to buy is a recently manufactured a new product, rather than left to pick someone else, or even repairing goods. However, there are some consumers do not pay attention to this aspect, Mama Huhu's will have elapsed, then why do this? The purpose is very simple to prevent the quality problems of products to buy or even repairing goods.
If you encounter packaging has been opened, then it may request the JS replacement of a, JS this time will do its best to persuade the general to be so explained: "This station was opened books though, but not actually what the problem is something else people say do not open the read ... ... "and so on. To some extent Inspiron 1721 battery, come, JS, then there is a certain reason, there are indeed some of the books were opened, there is no quality problems, nor is it what the rework cargo. But how can you guarantee that Taiwan has been opened to books no problem with JS alone the one-sided? Think you buy, but thousands or even tens of thousands of dollars a notebook ah, but not hundreds of pieces of small electrical appliances, this bet can not afford to play. Therefore, I propose not to listen to JS's boast, straight asking him for a new station, or flew leave (you have no money anyway).
Here we must remind consumers of this situation, and some JS extremely treacherous, packaged in order to eliminate traces of being opened, he would in the original tape and then paste another layer of tape, not carefully we can see that there are two layers of tape can not see. After being handled, almost like the new packaging.
Confirmed that the packaging is a new off after the take over of the check items inside the box.
After a general notebook computer open the packaging, in addition to books in addition there is also the power adapter, and related accessories, product manuals, UNPROFOR certificate (number and laptop numbers the same), warranty card recording card, also equipped with the operating system installation disk restore disc (some models not equipped with). So many things must be verified one by one to see if there is no lack of, in so doing we can prevent unauthorized JS deducted out of the box accessories, can also further confirmed that this model does whether it had been opened box. Box inside a notebook computer Inspiron 2600 battery,Inspiron 2650 battery, there will be a packing list, even though there is no separate packing list will be specified in the instructions in a notebook the name and quantity of items within the box. We can be the basis of this packing list or manual checking. Addition, we must check whether the operating system installation disk operating system in line with the machine.
2, check serial number
After the inspection confirmed that is correct, the next should be careful to check the serial number of the notebook computer. This step is the choice of foreign-brand notebooks friends is very important, if there is inconsistency in the serial number, there may be parallel or assembled goods. As for the domestic notebook computer, if there is inconsistency, then this notebook computer has been opened or been replaced since there are quality problems may exist, or repairing goods. No matter what the situation, immediately called JS replace it.
Here we talk about how to check the serial number, serial number will normally appear in these places: body, battery, external boxes, manuals, certificates and other parts of UNPROFOR. Here we must explain, not mentioned every place marked with serial numbers, according to each brand differ. Batteries, external boxes, manuals, certificates and other parts of UNPROFOR is better to find the serial number and the serial number of the body are generally located in the base of the notebook body. Such as IBM's ThinkPad notebook computers and machinery at the bottom have a product model and serial number, its product model ending with the last one is a C, indicating China. Can enjoy a three-year International Warranty, so even out of the country do not have to worry about.
Serial number in the search for consistency, we must also check whether it had been altered and was re-posted over the traces, because some powerful little JS to fake a number of brands of serial number. In addition, some books there is a way to check the serial number, in the boot into the laptop's motherboard BIOS, check what the BIOS serial number and serial number of the fuselage are the same. If all places have the same serial number, then illustrate the source of the basic model does not issue; If there is an inconsistency, then this model does not absolutely have to, the solution is only one word: "change!
With the increasing JS counterfeiting technology, this step must be careful, it is best able to access the Internet or telephone to check it safer. In short, whenever they found a little tricky, and must not compromise.
3, check the books look
Visual inspection is necessary because the present practice of electronic products on the country where three packs of law, for the question whether the returned because of the appearance was rather vague definition, even if they retreat, JS Selection Committee is usually a result of consumers to buy with him after the nothing to do with that time, hard nut to crack, in order to avoid the encounter trouble, so be sure to check the purchase of books look. Think about it, buy new books, appearance Inspiron 5150 battery, some problems, how many people would mind bad mood.
First check whether the shell scratch, Diaoqi signs to ensure the shell intact; second shaft to see whether there is cracks and loose situations; if it is low-priced machines, but also check whether there is mold or a meshing do not care whether the rough side seam issues; 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's keys, note that there is no high-side and low side of the situation, or have a few keys are not formed phenomenon; the following shortcut keys check, touchpad buttons, and multimedia playback keys, but also note that there is not flat phenomenon; and finally to check the battery, pay attention to the battery fineness is new, apart from the appearance inspection, need to use special software testing, this I put behind the talk.
Checking if there is no problem, you can make the following specific test for the notebook; if there are problems, then the firm called JS-for, I believe that as long as you do not pay at this time, "customer is God" phrase is very useful , JS will not bargain away is not goods, an excuse to finding a way out.
Finally, I would also like to draw attention to this situation, which is purchased by a "God *" books on the users of the forum provides: After the purchase of books, this unexpected discovery of the user stickers gap could have arisen in the following chassis Therefore, carrying books to find JS replacement, JS commented that this was improper use of consumers to buy back after the result, not only to repair to replacement. Thus, for some brands of books, we check to be particularly careful, do not lose a one place, or after that time, a problem even more complicated.
4, interface checking
End visual inspection confirmed that there is no problem, the following notebook boot to the special testing, these tests need to use a number of professional testing software Inspiron 5160 battery, so buying the software before it is ready, there is brought together with U disk. In the special test, first check can use U disk USB interface, because the USB interface is the one we often use to interface, so I suggest that you check the best buy when they check the USB interface is intact.
U disk one by one inserted into each USB port on the inside to see whether the system is allowed to deliver the data, recognizing that every USB port is working properly. As for the other interfaces of the examination: audio output interface, only need to wear ear plugs, listen to a sound can be had; for the microphone interface, then plug in an external microphone, you can check; and S-Video, 1394 interface, VGA interface, card reader, etc., able to do so could bring the appropriate cable and memory card to be checked.
For this step, some people think that there is no need, but I think is more important, from the responsible for their own point of view, it should at least check the USB interface.
5, LCD screen test
LCD screen special inspection focused on whether dead pixels on the detection of dead pixels on the NOKIATEST we can use the software to check, the software does not require installation, the file size is only 580KB or so.
COLORS test run NOKIATEST in, NOKIATEST will in turn give a white, red, green, blue, black to detect the screen, through this test we will be able to find out whether there are dead pixels LCD screen, here to draw attention to check the time must be careful, especially the white is very difficult to detect a small bright spot.
In addition to detection of other dead pixels, NOKIATEST also can detect a lot of projects, such as the geometric image distortion, brightness and contrast, focus, resolution, jitter, text clarity and so on.
The following will give everyone about a LCD screen can indirectly test the response time of software - DisplayX. It can also detect whether the dead pixels LCD screen, can also carry out respiration, 256 level gray-scale (LCD screen display, the better, then the more obvious the 256 gray scale), etc. Test:
In addition to these tests Inspiron 6000 battery in addition, DisplayX most salient feature is that we can indirectly test delay time, from moving the box to find out there is no shadow of a drag, its corresponding time is your books LCD screen delay time.
LCD screen has dead pixels, just like beautiful face hemorrhoids, how much would undermine the effectiveness, impact mood, so I re-emphasized to buy books other specialized tests can not do it, but we must bring NOKIATEST or DisplayX.
6, CPU test
Many consumers think that CPU is the most difficult to start with a deceit JS components, but the fact that some of this JS is the use of consumer psychology, desperate to make a fuss in the BIOS above, the low-frequency processors, into a high-frequency processors, fool the operating system, also put a handful of consumers Mongolia. In fact, if you have specialized software testing, JS, these looked very childish behavior will be exposed to in your very eyes.
CPU detection tool, the most common is CPU-Z software, its powerful. CPU-Z does not require installation, the compressed size of more than 200 KB, its very detailed CPU detection, we can Became popular:
It should be noted that problem is, it is best to bring the latest version of CPU-Z software, so as not to appear on the new processor does not correctly identify the phenomenon.
If we think that CPU-Z not so professional, then consider the Intel processors, this special detection software bar - Intel Processor ID to use the program. The software needs to be installed, the installation files around 1MB. Installed running see below:
The software can test the CPU frequency, system bus, cache, support for the technology, CPUID data, etc., is the Intel processors, software testing authority. The same test is best to bring the latest version of the Intel Processor ID to use the program, so that will not appear on the new processor does not correctly identify the phenomenon.
7, chipsets detection
Chipsets only let you test more clearly what you are buying the books Inspiron 630m battery,Inspiron 6400 batterywhat chipset used, so you just feel more at ease. Here Recommended software - IntelChipsetIdentificationUtility. This software is more compact and does not require installation. Click to get the results directly after the
This software is the detection of the authority of the Intel chipset software. The same test is best to bring the latest version of IntelChipsetIdentificationUtility, so as not to appear on the new chipset does not properly identify the phenomenon.
In addition, for some chipsets, such as the 852GM, 855GM, this recognition result is the same software, we can use other software to detect, such as the following mentioned Everestpro software.
8, memory testing
Mentioned earlier, CPU-Z software, in addition to detect CPU, you can also right memory capacity, frequency, timing for testing to see whether the memory Yin JS you: In addition to CPU-Z this software, Everestpro also able to detect memory. Everestpro heads relatively large, 10MB or so, do not need to install, but its strong performance, the entire notebook computer can carry out a detailed inspection. Here, we mainly use it to test memory, their information is very detailed, even the date of manufacture can be detected.
9, card detection
The detection of the card can also be achieved through Everestpro software, Everestpro can detect the display of graphics-chip frequency, memory frequency, memory interface and so on, is very comprehensive, can you know whether the display of graphics on the books shrink.
Detection of graphics hardware specifications in addition to testing outside the basis of their practical application, this can be the famous 3Dmark01 software testing, through this test can also detect the stability of the whole system, if you can not finish the whole test, then books exist in the compatibility or stability problems. 3Dmark01 need to install the software, the entire installation process relatively large, almost 40MB, but dealers are generally available in the software. After installation, the software interface to run as follows, click the "Benchmark" one can begin testing.
After the test finished, 3Dmark01 will play a fraction of your card, pay attention to whether this score card should be matched scores on each card in 3Dmark01 score under the circumstances, the user can advance on-line inquiries. Here we must note that if you use battery test, the last test scores out of scores much lower than normal, such as the ATI9600 graphics card is only using battery score more than 3,000 points.
Of course, you can also bring 3Dmark03, 3Dmark05 software testing, as testing methods and 3Dmark01 similar, I will no longer be a wordy.
10, the hard disk detection
For the detection of the hard disk, you can use more specialized software - HDTUNE to achieve. This software does not require installation, only the more than 300 KB size. After the interface is running as follows:
Can see that can detect the information is very comprehensive, hard drive model, serial number, capacity, transmission mode, cache size, disk temperature, etc., can also be a "benchmarking", test your hard drive the actual performance of books.
The only downside is that this software can not detect the hard drive speed, this can be the previously mentioned Everestpro software to compensate. Everestpro software can detect a lot of the hard disk parameters, for us there is not much sense in terms of ordinary consumers, our only concern is the speed and cache size.
Careful reader may be noted that just is not in use HDTUNE detection capacity of a test out of cache, Everestpro have measured out.
11, CD-ROM detection
Detection of CD-ROM also has a specialized software - NEROINFOTOOL. This software does not require installation, the size is only 200 KB, is very convenient to use, directly run can be a (see figure below):
NEROINFOTOOL can not only detect the drive model, cache size, read or write speeds, but also detect the drive to read or write supported format.
12, the battery detection
Battery for notebook is more important, a direct impact on the portability of laptops, so the battery test is a new addition to observe the appearance but also to the use of specialized software for testing. Some brands such as IBM, SONY are equipped with specialized software to detect the frequency of recharging the battery, while the HP notebook which can be detected in the BIOS battery charging times. Through these post-test software or BIOS, if found to charge more than 3 times, then the battery is used, the user may require dealers to replace.
The other can not detect the frequency of battery charging brand, we are through a special software to test - Batterymon. Batterymon need to install the software, install the file is relatively small heads, and only 400 KB. After the installation and operation, the interface is as follows:
Batterymon can detect the battery runs out of the total time (theoretical value), can detect the battery power, as well as the remaining duration of use, it must be noted here, the new books should not be a high battery capacity will be 3% (the example here is the author use of books, of course, power would be higher than 3%).
After the test finished these projects, the following click on "information" in the "battery information", you can detect some of the specific information on the battery.
Here, look out "design capacity" and "full charge capacity" in these two columns of data are the same, for a new battery, the design capacity and full charge capacity should be the same. This writer's notebook with a big half a year, the battery is fully charged capacity of the design capacity and there are differences is a normal phenomenon.
I think that this test must be done, through this test will be able to avoid the purchase of used batteries, eliminating a lot of trouble later.
13, the system detects
End of each single test, the final step is to test the entire system. Here we recommend the use of PCMark04 this software, PCMark04 need to install, install the file size of 36M or so, it can right CPU, memory, graphics, hard drives, system testing, and finally gives a score, the higher score indicates better system performance.
Through this test also can detect the stability of the entire Taiwan books, as well as Inspiron 640m battery a comprehensive performance accessories.
At this point, the entire inspection machine process has basically ended. Finally, the author drew attention to check the merchants offer gifts, have confirmed that is correct, it could then take this Jiaoqian leave.