Ok, I'll teach you how to buy a laptop now.
Several points that should be paid attention to when starting unpacking inspection.
1: When unpacking, first check whether the box is sealed, even at the bottom. If it is found that one side of the seal was pasted later, the machine must have been sealed before. It is possible that the main engine inside is a prototype or a rework machine.
2. Compare whether the serial number of the host bios is consistent with the serial number of the outer packaging box and the serial number at the bottom of the machine. Generally, the packaging of licensed goods should be opened by itself, and the serial numbers of some machines are also posted on the warranty, so we should also compare them to see if they are consistent. Parallel imports have been opened, and sometimes the cartons may not be the original machines. It depends on the serial number in the BIOS and the label on the bottom of the machine, as long as it is consistent. (However, you need to wait until the serial number in the BIOS is turned on. )
In this step, the buyer who buys licensed goods only needs to check that the serial number at the bottom of the machine is consistent with the serial number of the outer packaging box and the serial number on the warranty certificate! Note: Some laptops can't find the serial number in the BIOS. )
3. Check whether all kinds of accessories are complete (the packing list can be used to check whether the accessories are complete), whether the serial number of the accessories is consistent with the packing list, and whether there are signs of damage or use. In addition, friends, before purchasing the machine, you'd better log in to official website of the model you are interested in and find out what accessories are available for this model. Or it's also a good idea to ask friends who have bought this model online.
4. Check all kinds of equipment that can be removed from the base. If not, you can ask the merchant to take it down for you and check whether the serial number is consistent with the packing list (some machines don't have serial numbers on the boxes). This is related to the warranty qualification in the future, because some repair stations will only accept your warranty if they confirm that your accessories are original.
5. Check the battery and battery slot. If there is friction between the contacts, the machine may be used, because the general tester is directly plugged in without using batteries, and the general tester is also directly plugged in without plugging in the battery. (This is more common in ibm and Sony, because both brands can see the charge and discharge times of the battery in the power management program. If the number of battery uses is checked when checking the machine >; Then there is a problem.
6. Checking the keyboard, cracks and screws of the host can help you to judge whether the machine has been used or tampered with for a long time. When you find that the key cap of the keyboard is shiny or the screw is scratched, you should pay attention. It is very likely that your love machine has been tampered with or used for display. If the merchant says that the machine will be inspected when it is brought from the manufacturer, don't believe that the short inspection will not make the keyboard keycap glow.
After the above steps are completed and everything passes, you can power up the tester.
1: Enter the bios to check the basic information of the machine. Different brands of machines enter the bios in different ways. Generally, there will be a prompt on the boot screen or the merchant can help you check whether the serial number of the outer packaging box is consistent with that in the bios, and at the same time, you can know the general configuration of the machine in the BIOS.
2. Check whether the operating system of the machine is unpacked. For most new laptops with Windows operating system pre-installed, once the power switch is turned on, the BIOS will automatically enter the registration screen of the operating system after self-checking. You must enter the Windows registration number provided randomly to use it. Some manufacturers' products have already installed the OEM version of the operating system when they are turned on, but they have not entered the registration code yet. After entering the operating system, a dialog box will often pop up asking for registration, which is normal. If the "brand-new" notebook computer brought by the merchant already has a registered Windows operating system and a lot of privately installed software, then be careful.
3. Check the bad points of the LCD screen. It is important to remember this step, because a certain number of defects are not quality problems, that is, if you don't check the machine clearly when you buy it, you don't want to change it when you pay. Delete all the icons on the desktop, and then set the background color to various contrast colors and take a closer look. If you are not in a hurry, change it as much as possible, and it is best to look at the LCD screen from several different angles. Because many bad spots are invisible under normal visual angle, if there are small bright spots or dark spots with different colors or no discoloration, they are bad spots. Of course, testing with software is also a good method.
Ntest.exe software can detect the bad points of LCD screen. After running this software, the screen can be switched to different solid colors, so that the bad spots can be easily identified. In addition, this software can also evaluate the professional indicators such as display contrast, text clarity, color temperature and molar deviation of the screen through demonstrations of different display modes. This software even has the function of testing the left and right channels of the speaker. Moreover, its size is less than 600KB! Friends in need can go to major software download websites to find this software.
4. Next, try the optical drive. If you have a floppy drive to try together, you can find a VCD to play it and try to see if the speaker of your machine is normal and can make any noise. If you are a friend of DVD drive, try DVD directly. Remember to check the speaker, because if the machine is left for a long time and stored badly, it may damage the paper basin structure of the speaker, resulting in broken sound, so be sure to check the speaker when playing DVD or VCD!
5. Try "Cat" through dial-up Internet access (this is best done in the business). If possible, you can try the network card. In fact, the probability of this part of the hardware going wrong is not great, but it is not a bad thing to give it a try. If you want to try a network card, you need to bring your own direct connection and use other machines of the merchant for online experiments. In addition, I will give you IBM's website/PC/support/site.wss/warranty/warranty.
This is the inquiry website of paq.com/support/parts/. Hewlett-Packard Machinery Company.
6. If you are interested and have the conditions, you can try various interfaces and ports on the machine, such as usb, 1394, infrared port and pc card slot. You don't have to carry these things with you, you'd better get them from the businessman. If you don't, you can try again when you get home.
7. Restart the machine several times to see if it can warm up normally. It is best to try to connect a USB mouse. After connecting the USB mouse, the IBMR40E22C notebook used by the author cannot be warmed up normally. I cried.
8. You can run some large programs in the system to roughly test the stability and scan the hard disk to see if there are any bad tracks or something. Of course, there is no need to do too much.
9. If possible, you can bring some gadgets and software to test the specific configuration of the machine and various indicators of interest, or you can check it in the system information. Sisoft sandra2003 pro is recommended, which can test all kinds of configuration information of the machine very comprehensively. Of course, few businesses are willing to put a lot of things in it before you pay, so
These things can be installed and tested after the machine is bought back.
10: Ask js if there are any other free software and accessories. Before that, you can go online to check whether the manufacturer has any activities, or ask the netizens who have bought this model. Especially if you have bought a parallel plane, you must ask js for the recovery disk of the Chinese system. If possible, you can ask for several different systems, such as win2000 and winxp. Anyway, don't do it for nothing, plan for the future system upgrade!
1 1: The rest is to discuss as many discounts as possible, such as asking him to give you a mouse or a USB flash drive in addition to the gift. These things must be done before paying, and you can't even think about it after paying.
12: After you confirm that this machine is satisfactory, you can call the manufacturer's hotline to check whether this machine is licensed. Online and newspapers are full of hotlines of major manufacturers, so I won't go into details.
13: Payment can be made after the machine is confirmed to be ok and satisfied with the price, discount and gifts. There are friends who buy licensed goods. I suggest you make an invoice. It doesn't matter even if it is two or three hundred yuan more than the lowest price you know. You should have a security point in the future.
Then look down ... and go to the website.
References:
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1 shenzhou found the function sufficient when it was the cheapest, but the quality of shenzhou's notebook was the worst. 1 year later, it was time to retire, and there was no desktop.
The quality of IBM is absolutely good, but it is more expensive under the same performance. Quality is the key.
Sony's computers with the same performance are also very expensive, generally not expensive, but Sony's expensive lies in amateurs, very beautiful and exquisite.
Lenovo's computer performance is average, but the after-sales service is absolutely good.
5 Compaq, HP quality is ok, Compaq is mainly for business.
I recommend Toshiba's computer, because mine is Toshiba's, and the quality is absolutely no problem. And now the price has come down, and you can buy a very good one around100000.
Notebooks are cheap at home for a penny, but they are scrapped after 1 year. If you want emergency, buy a better second-hand one, not Shenzhou.
Give you an article on how to buy a notebook and see if it can help you.
Because the internal structure and accessories of notebook computers are opaque (that is, ordinary consumers can't really understand the internal structure and specific models and specifications of notebook computers), and the price is very expensive, consumers are so confused when faced with so many brands and models. I don't know which product to choose and which product is suitable for them without wasting too much money. This requires users to first understand what kind of machine they need and what to do with it, and then analyze their needs by understanding some basic common sense and key points of purchasing a notebook computer, so I believe users can buy a satisfactory notebook computer.
Basic knowledge of notebook computer
Mobile processor:
The processor of a notebook computer is different from that of a desktop computer. Considering the power consumption, it adopts more advanced manufacturing technology and technology, which reduces the power consumption while achieving high performance. Moreover, different mobile processors have their own energy-saving technology (power management technology), which can adjust the frequency or voltage of the processor to reduce power consumption. At present, the mainstream mobile processors are Pentium M, Celeron M, Pentium 4-M, Athlon XP-M and Quanmeida Crusoe, while mobile processors such as Pentium III-M, K6-3 and C3. They are all eliminated products, and users don't have to consider them when choosing.
Pentium m processor has the characteristics of low power consumption and high performance, which is completely designed and developed by Intel for notebook computers, making notebooks have a qualitative leap. However, as a brand-new product, notebooks using this processor are all mid-to high-end products, and the price is relatively expensive. This is a more universal product, so it will be seen in notebooks with various positioning, and it also greatly improves the performance of ultra-thin notebooks.
Celeron M processor is a simplified version of Pentium M processor, which uses the same core as Pentium M and aims at the low-end market. Therefore, the launch of Celeron M has made many mid-to-high-end laptops with Pentium M versions have corresponding cheap models. The Celeron M processor of the same model is generally about 2000 yuan cheaper than Pentium M, and its performance can fully meet the needs of ordinary users. Therefore, students, families and business users who have low performance requirements can consider adopting Celeron M model.
Pentium 4-M processor is a mobile processor improved from desktop processor. Because of its low price and good performance, it still has a market position, and its biggest disadvantage is high power consumption. However, due to its high frequency, the latest version supports hyper-threading technology and still has its performance in multimedia processing, so it is widely used in multimedia notebooks and desktops to replace notebooks. If you want to buy a laptop for home use, Pentium 4-M products are also a good choice. After all, these models are very cost-effective.
Athlon XP-M is a brand-new mobile processor introduced by AMD for Pentium M, which has excellent performance and low price, but its heat and power consumption are still relatively too good to compete with Pentium M. However, due to its low price and good performance, it has been widely used in low-end models above 14 inch. For many students, Velon XP-M notebooks with low price and sufficient quantity are a good choice.
The Crusoe of Quanmeida is a mobile processor with ultra-low power consumption, just like adopting the processing algorithm of software to simulate hardware, so the number of transistors is greatly reduced and the power consumption is controlled very low, but the corresponding performance is not high, but it is used in many mini notebooks, such as 5.6-inch and 8.9-inch notebooks. It is not a product that requires performance, but its pursuit is super portability, so it also has a part of the market. In addition, Quanmeida's latest Efficeon processor will be released soon, and we expect this ultra-low power mobile processor to improve performance.
Chipset:
Motherboard chipset is also a very important part of notebook computer, which is closely related to performance and overall power consumption control. The non-Intel mobile chipset with the best comprehensive performance on notebook computers is the best in memory, disk performance and power management, and other competitors can't compete with it in this field, which is one of the reasons why Intel is far ahead in the notebook field. In addition, SiS, Ali and Ati North Bridge +Ali South Bridge are common in notebook computer chipsets, and others are VIA, but they generally appear in notebook computers using AMD processors. Although these chips exist in the market, their share in actual products is very small, and they often appear in some low-priced notebooks.
It should be noted that some ultra-low-cost notebooks use desktop accessories in terms of chipset, processor and memory. Although the cost is low and cheap, the overall stability is doubtful, and the internal design and heat dissipation are worrying. And there is no-PC card slot, which is an important expansion slot for notebooks. Technically, it's not a laptop. Users should pay attention to this when buying low-priced notebooks.
Memory:
The memory of notebook computer is completely different from that of desktop computer, and the price is much more expensive than that of ordinary desktop computer, but its small size is beneficial to the internal design of notebook computer. At present, DDRAM is widely used in notebook memory, and SDRAM is basically outdated and will only be used when upgrading old computers. Therefore, when we buy a notebook computer, the memory is generally DDRAM specifications, one is the more common SO DIMM notebook memory; One is micro Dimm memory. Micro-Dimm memory is generally used in ultra-thin notebooks, which is half as small as standard SO DIMM memory and very expensive. Notebook memory does not require high speed and pursues stable operation. Therefore, at present, the highest specification notebook memory supported by notebook computers is only DDR333. However, due to the speed limitation of notebook hard disk, notebook computer relies heavily on memory. Proper configuration of large-capacity memory is obviously helpful to improve the overall speed of notebook computers.
Hard disk:
The hard disk of notebook computer can be said to be the slowest developing component in notebook computer. For a long time, there was no qualitative leap in speed. At present, the specification of 4200 rpm is still widely used, and the beginning of 5400 rpm appears in some high-end notebook products. Although 7200 rpm hard disk has been released, due to the mature technology, notebook computers are rarely used at present. At present, the size of notebook hard disk is divided into 2.5 inch and 1.8 inch, and the maximum capacity of 2.5 inch notebook hard disk reaches 80GB, which is also widely used in notebook computers. However, the 1.8-inch notebook hard disk has a maximum capacity of 40GB and a maximum rotation speed of only 4,200 rpm. It is adopted by some ultra-thin notebook computers (such as Toshiba R 100, Sony X505 and other ultra-thin products), which is expensive and difficult to upgrade.
Mobile display chip:
With the increasing performance of notebook computers, games have become an entertainment function of notebook computers. The field of mobile graphics cards is still dominated by ATi. Although the rising star NVIDIA is catching up, it lags behind ATi in overall power consumption and performance. At present, the strongest mobile graphics cards are ATI Mobility Radium Dragon 9700 and nVidia Geforce FX Go5650. Although these two graphics cards have strong performance, they also consume a lot of power. They are generally used for mobile multimedia audio-visual center notebook computers or desktop replacement computers, and are of course the best choice for users who play games. In addition, some other discrete graphics cards also have strong 3D performance. Mobile radium dragon 9600, mobile radium dragon 9000, Geforce FX Go5200 and Geforce 4 Go440 are all good mobile display chips, and their performances are arranged as follows: mobile radeon 9600 >:Geforce go 5200 & gt；; Mobile radium dragon 9000 & gtGeforce Go440 & gt Mobile radium dragon, its power consumption is generally inversely proportional to its performance, so it appears in different positioning models.
In addition, there is a force that cannot be ignored in the field of notebook display. They are integrated graphics cards with the lowest power consumption and good 2D display effect, so they are widely used in business notebooks and thin notebooks, and even can be said to be the absolute main force in the field of mobile display. At present, the performance ranking of mainstream integrated display chip chipsets is: Intel 855GME chipset >: ATI IGP7000 series integrated chipset >: Intel 855GM chipset >: ATI IGP300 series integrated chipset >: Intel 852MG chipset >: SIS650M & gt Intel 830MG chipset. Intel's latest 855GME chipset integrated display chip, whose performance is equivalent to ATI Mobility Radium 7500, is the best integrated display chip chipset at present. In addition, we should also pay attention to memory. All integrated display chips use main memory as memory. Consider the size of the aggregate memory when using it. If it is too small, it will affect the display performance. If too much main memory is occupied, it will lead to too small main memory and affect the overall performance.
Network equipment:
The network equipment of notebook computer has become the ultimate configuration of notebook computer. Centrino vigorously promoted its "wireless unlimited" (labeled as wireless network card), which was a smash hit. At present, the notebook comes standard with V92 modem and 10/ 100M adaptive Ethernet card, which is the lowest network equipment standard for the notebook. Users must pay attention to whether these two devices are complete when purchasing, otherwise they will be used in the future. In addition, with the popularity of Centrino, standard wireless network card has become a major feature of notebook computers. At present, most high-end notebook computers are equipped with wireless network cards, which can bring great convenience to users. With the laying of wireless network, many public places have covered wireless LAN, which brings great convenience to notebooks with wireless network cards. Of course, the standard wireless network card will raise the price of the whole machine, but for the cost of future upgrade, the standard wireless network card is more cost-effective.
Display screen:
The display screen of a notebook computer can be said to be one of the most important components, and the size of the display screen directly affects the size of the notebook computer. At present, notebook types can be divided into: 8.9-inch mini-notebook, 10.6-inch ultra-light and thin notebook, 12. 1 4.1inch full-size notebook. So the size of the screen is also an important factor for users to buy laptops, depending on what type of notebook you need. The display screen is also a big power consumer of notebook computers, and its power consumption also determines the use time of notebook computers, and its image quality directly affects the mood of notebook users, so an excellent display screen should be paid great attention to by users when purchasing notebook computers.
Key points of purchasing a laptop:
In fact, many friends who bought laptops rushed to buy them on impulse. Before buying, I didn't analyze my own needs, and I didn't fully understand the various characteristics of the notebook computer. I was eager to start, which led to the feeling that the products I bought were not as good as my own ideals, and I regretted my original decision.
Before purchasing a notebook computer rationally, it is necessary to make a full analysis, so as to have a clear understanding of both your own needs and the characteristics of the product. However, many users fail to do this when buying, but listen to advertisements or other people's opinions and unilaterally pursue weight, appearance, brand and so on. In the end, they bought products that were not suitable for them, which made them very upset.
Notebook products, like other things, are not perfect, but the needs of each user are different, and the positioning and functions of each notebook computer are also different. Only when you fully understand your product needs and product characteristics, you will be targeted when purchasing products and buy the machine that suits you best with the most reasonable money.
Ask yourself if you need a notebook.
First, ask yourself what you need a notebook for. If you want to show off, I still advise you to give up the idea at once. Laptop products are updated too quickly. Maybe the notebook you spent 10 thousand yuan on will be eliminated after half a year, and you will regret the price you paid.
If you are completely unfamiliar with computers and only use them at home, it is ok to choose a notebook, but you should consider that you can buy a desktop with outstanding performance in all aspects at half the price of a notebook, and it is more convenient to upgrade in the future, so we think your first choice should be a desktop.
So what kind of people are suitable for buying laptops? Of course, if the notebook computer brings convenience and fun to your work, study and life, then you can choose it without hesitation. For example: business people who travel frequently, college students, programmers, and the second computer at home.
Know your own needs
What kind of notebook do you want? What is it mainly used for? As long as you understand these two problems, you will not be aimless and at a loss when choosing products. If you are a business person and travel frequently, then a stable and light business notebook will be your best choice; If you are a student, you may pay more attention to the price, but the fashionable style is what every young person likes, so you can choose some low-end notebooks with strong multimedia functions. This kind of notebook has good performance in all aspects and fashionable appearance, but because students don't need to carry notebooks often, they can have low requirements in weight, so there are more choices for the price of this kind of products; If you choose a notebook for office or home use, a desktop with good comfort and high overall performance is a good choice for you to replace the notebook. Of course, everyone's needs are complex and diverse. Ultra-thin notebooks and multimedia notebooks that emphasize audio-visual functions are both launched for different users. As long as users seriously consider this problem before buying, I believe you will have a general direction in mind, and then it is not difficult to know the characteristics of each product in detail after selecting the scope, and it is not difficult to choose the product that suits you best.
Know your budget
The price of notebook computers varies greatly. Even products with the same positioning and basically the same configuration will have different prices due to different brands. Therefore, it is very important to make your own budget before buying a notebook, and don't modify it easily after making a budget.
And this budget had better have two price points, one is your ideal price point, and the other is the highest price point you are willing (able) to bear. In the actual purchase, use the ideal price first. Only when you find a model that really suits you, but the price is expensive, will you consider the highest price, but in any case, don't exceed your own highest price, and don't trust the recommendation and inducement of the sales staff to lower your standards, so that the products you buy may eventually become a heavy burden for you and pay a high price for unnecessary functions.
Moreover, after determining the purchase mode, it is best to know the price of as many products as possible from various channels, and then ask the buyer after determining a more realistic price. It doesn't hurt to ask a little more, and finally bargain in the most realistic one. The actual transaction price is often 5 ~ 10% lower than the price of the merchant, which depends on your bargaining power. You can sell it if the price is satisfactory. If the price is not satisfactory, don't sell it in a hurry. After all, the price of notebook computers is always falling, and there will always be surprises when you come a few times more.
Summary:
Notebook computer is a diversified product, so users must be clear about their purchase intention before buying, adhere to the principle of enough is enough, don't blindly pursue the latest technology, the most fashionable appearance, the strongest performance, and don't be too brand-conscious, rationally analyze and choose, so they will definitely choose a product they are satisfied with.
In addition, because the domestic notebook market is not mature at present, the after-sales service of notebook computers is a headache. Therefore, we should pay attention to this problem before buying and regard it as an important factor in purchasing machines. To choose a brand with good reputation, fill in the warranty certificate clearly when purchasing, determine the warranty time, and strive for the longest warranty period as far as possible, so that users can use their notebooks without worries.
Buying a notebook is like buying a brand-name machine, and it is easy to walk into the "trap" set by the merchant. Even if you know the online evaluation report by heart, it is hard to resist the lust of local tyrants like plmm, and the small mouth that can tell the dead alive! So you should not only be familiar with the technical parameters and indicators of the products you want to buy, but also practice to the highest level of "letting a hundred flowers blossom without touching your body"! (whispering: "why do you talk so much nonsense every time!" Kill! " )。 After I resisted countless MM's saliva, I summarized the following misunderstandings in notebook purchase. I want you to pay attention to:
The first misunderstanding: advertising and promotion misunderstanding
This is the easiest misunderstanding to walk into, and it is also the trap that salesgirls are best at. Generally speaking, businesses that are notebook agents and sales are not familiar with the technical trends and electronic fashions in the industry, so they like to talk and draw by themselves and recommend the so-called "notebook computer trends" to you. For example, a MM tells you about their laptop 14-inch large screen, fully modular design, built-in modem, etc. , especially national brands, completely made in China! At first glance, it sounds good, but you won't think so after I analyze it for you.
The first is 14 inch TFT. Don't like 14 inch screen, it's too big! And now many official documents can't use 14 inch notebook, especially MM, it's ridiculous to bring a 14 inch notebook. Secondly, the modular design is easy to use. What is modular design? I'm afraid even the salesgirl can't figure out the specific concept. Modular design was widely adopted as early as the end of 1990s, and it is not a new standard.
General document processing, 6xxx mobile PC is enough to do professional fields such as software engineering and network management, and 20000 is probably just right! To make matters worse, these salespeople like to use such words to cover up the shortcomings of the notebook computer itself and confuse the audience! Third, national brands support domestic products, even more ... Alas, nowadays JS likes to deceive people with the truth!
I just want to ask those MM who sell notebooks, can you find out how many things in domestic notebooks are completely designed and manufactured by yourself? It's not that I don't like domestic products. Lenovo and Founder's notebooks are still very good. I just ask these salesmen to be objective and not to oppress others with facts! And our friends who buy notebooks are most afraid of watching advertisements and are most likely to be deceived. We should carefully study the reports and market recommendations of authoritative evaluation institutions and find out the books that suit us.
The second misunderstanding: misunderstanding of the origin
Some notebooks are produced in different places, but the brand is the same. For example, Toshiba notebooks are generally licensed in China, one is Lenovo Toshiba, and the other is Toshiba notebooks made in the United States. So many salesmen will read these two books together. There are many other OEM brands, such as Taiwan Province Quanta, which you may not have heard of. He is the world's number one notebook manufacturer and also works for some world-famous brands. So although the notebooks you see are the same brand, they are not all original (original factory), just like Sony's color display, which may be from Shanghai Sogo or Miyako, Japan, and the quality is definitely different. So when you buy a notebook, you can't just listen to the salesman (they always like to say that their notebooks are imported and 100% are made in the original factory), so you should carefully check and indicate the place of origin on the logos of many notebooks.
The third misunderstanding: the misunderstanding of after-sales service
In addition, after-sales service is very important! Notebooks are different from our desktops and are expensive, so after-sales service is very important. Whether the manufacturer has set up maintenance stations in various areas or the main use areas purchased by users is an unavoidable misunderstanding for users. No matter what brand, we should consider how the maintenance of notebooks is promised. Don't be confused by PL's mm statement when you buy it. Pay attention to these things, how long is the after-sales service period, what is the specific content of after-sales service, and how long is the maintenance and replacement cycle.
Generally speaking, most notebook products are replaced free of charge 1 year, with limited after-sales service for 3 years. The maintenance and replacement cycle of most products is about 15 days. When purchasing notebooks, it is recommended to choose some imported brands and domestic products with better after-sales service, such as IBM, Lenovo, Founder, Acer, Asus, Toshiba, etc., whose products have better after-sales service. Moreover, IBM has launched the blue express service in this respect, with a national warranty of three years. On the other hand, in China, manufacturers still have a lot to go in terms of maintenance quality and the establishment of maintenance stations.