Parsing laptop cooling technology

With the improvement of the overall performance of computer technology, the operating frequency of the various components are also increasing, along with increased power consumption, heat dissipation has become a very critical technical issues. Emissions related to the heat stability and the product life of the entire system. Especially for laptop computers and some small mobile terminal products, effective heat dissipation has a very important significance.

Laptop cooling device
(1) heat pipes
The heat pipe can efficiently conducting heat from one end to the other end. It is more than 20cm long, diameter 0.5cm, which has fiber and water, evacuated tube, one end close to the CPU, the other end away from the CPU and an external heat sink or fan heatsink. Its working principle is: in a vacuum, the boiling point of water is very low, if heated at one end of the pipe, the water will evaporate, the tropics to the other side, to the other side, the water will cool down, and then flow back, so the cycle heat is constantly moving, like the principle of air-conditioners. The advantage is that no moving parts, all parts are sealed included, do not consume energy, but also because it is completely sealed, it is always valid.

Laptop cooling tube
(2) heat dissipation plate
Bottom and upper board, each with a piece of metal heat sink, there is help in the location of the CPU cooling system receives heat from the processor to generate and import it into the heat pipe. These heat to be conducted through the heat pipe along the entire metal heat sink. Located in the upper part of the cooling plate motherboard and keyboard contact, heat will be discharged from the keyboard.

Board in the metal heat sink
(3) the metal frame mold
Except for the two heat pipes and double heat dissipation plate, and a portion is also exposed to the heat source, it is the peripheral interface of the stent, the rear end is located in the computer, and exposed to the air. Therefore, we also used this piece of metal, the heat generated by the bottom of the processor, peripherals connected via the rear part of the conduction out. Currently on the market there are many laptop computers have adopted internal heat dissipation and also lightweight "magnesium alloy" as a framework for the laptop.

Aluminum-magnesium alloy die laptop
However, due to structural laptop itself determines its thermal performance is not particularly good, such as the outbreak of a certain brand of graphics card door thing that is the culprit because of poor laptop cooling induced by the exposure of its graphics design flaws. So, this coupled with a radiator based on hot summer days is good way to avoid the tragedy.

How do computer chassis noisy

Computer chassis buzzing reasons
The reason for the computer chassis buzz generated mainly due to some hardware with a bad radiator caused such bad CPU cooling fan, cooling fan and bad graphics bad power supply cooling fans are likely to cause a buzzing computer chassis, which is why I can not accurately tell users which in the end is the reason, because you also need to open the case cover to listen to yourself, to touch, to observe in order to know the exact answer. We may wish to use the above method to find the cause of computer chassis buzzing is caused by what the hardware.
1. First, open the computer case side cover, and then turn on the computer, and then use your ears, look buzzing which hardware is issued by the radiator come. Focus is to listen to the CPU cooler, VGA cooler and power three main hardware.
2, if you feel it is difficult to listen to it, might as well hand to touch the power to see if there is a strong felt, after also be shut down, I live CPU fan or graphics card, then boot to see if there will be buzzing happen if no, then we can conclude that the cause of which hardware.
Computer chassis buzzing Diagnosis: computer accessories chassis fan is not much, only the power supply fan, CPU fan, graphics card fan; these can be seen, which is invisible to the internal hard disk to read the disk sound, but also have read the disk drive voice. But this kind of sound basic very small, hard sound great but also with the words, it is estimated using basic soon scrapped soon!

After the boot, listen carefully, you can hand hold down the fan (no more long, probably about 3-5 seconds on it), this way you can determine where the sound coming out of. Computer cpu fan loud: Well As The solution is very simple, the fan removed, take a look at the sticker on the back of a layer (a few in front of the fan), it will be opened, you can see the concave part, there is a small screws, where you can order some lubrication economy, such as: oil, soybean oil can then paste, put something to the fan, turn on the computer, listening to a loud if the computer cpu fan, then you have to re-buy a fan the detected that bad fan to replace! Problem can be solved.

What kind of PC computers and the difference

PC (personal computer), the word comes from the personal computer in 1981, IBM's first computer model desktop PC, the Apple II personal computer before that. Can operate independently perform specific functions of personal computers. Personal computers do not need to share the processing, disk and printer resources from other computers can also work independently. Today, the personal computer is the term refers to all of the personal computer, such as desktop computers, laptop computers, or IBM compatible personal computer systems and so on.
Desktop (Desktop)
Also known as desktops, is an independent computer phase separation, completely no contact with other parts, as opposed to larger laptops and netbooks, the main components such as: host, monitors and other equipment are generally relatively independent, generally require placed in a dedicated computer desk or workbench. So named for the desktop. Is now very popular microcomputer, most people home and corporate desktop machines are used. Desktop performance laptops are relatively stronger.
One PC
One PC is a computer from a monitor, a keyboard and a computer mouse composed. Its chips, motherboards and display integrated with a computer monitor is, therefore as long as the keyboard and mouse connected to the monitor, the machine can be used. As wireless technology, one PC keyboard, mouse and monitor enables wireless link, the machine is only one power cord. This solves been criticized desktop cables and miscellaneous issues. Some also have one PC TV receiver, AV function.
Laptops
(Notebook or Laptop), also known as laptop or laptop, is a small, portable personal computer, usually weight 1-3 kg. It is similar to desktop architecture, but provides an excellent portable desktop incomparable include: LCD, smaller size, lighter weight. In addition to laptop keyboard, it also provides a touchpad (TouchPad) or touch points (Pointing Stick), provides better positioning and input function.
Tablet PC
Tablet PC is not a flip, no keyboard, sizes and shapes, but fully functional PC. Its constituent components and laptop basically the same, but it is the use of a stylus to write on the screen instead of using a keyboard and mouse input, and broke the laptop keyboard and screen vertical J-design patterns. It addition to all the features of the laptop, it also supports handwriting input or voice input, mobility and portability superior. Tablet PCs made by Bill Gates, should be at least X86 framework from Microsoft's Tablet PC concept proposed product point of view, the Tablet PC is not a flip, no keyboard, small enough to fit into handbags, but fully functional PC .
[PC Card]
This is a PC card is only about the size of a credit card pluggable device that can be plugged into a computer or Pocket PC. PC cards are divided according to their thickness as Type I, Type II and Type III three models. Pocket PC is plugged into the PC Card devices will provide data storage or communication functions (for example, connect a telephone line or LAN).
[Pocket PC]
Pocket PC is a handheld device that enables you to store and retrieve e-mail, contacts and appointments, play multimedia files, enjoying video games, using MSN Messenger to exchange text messages, browse the Web content you will be able ...... and desktop information exchange and synchronization.
[PC] Mobile
Mobile PC is also some vendors called "portable desktop", "portable home machine," which is characterized by the appearance of a laptop almost the same, but there is no built-in battery, PC Card slot, usually through the AC power supply with strong portability, and the internal structure is more streamlined, more user-friendly upgrades and maintenance themselves. In addition, most models also optional plug-in battery, enabling mobile computing in the true sense.
The main difference between PC and mobile laptop that: Mobile PC accessories mainly used desktop accessories, and laptop accessories are mostly dedicated laptop accessories.
1, on the battery: Mobile PC generally do not have built-in battery, and is powered by an AC power supply, mobile PC also recently launched an internal battery, but because of its use of desktop accessories larger power, so battery life is short often cause crashes phenomenon, and is equipped with a built-in laptop hundred percent dedicated battery, use of time is longer.
2, on the PC card slot: supports a variety of mobile PC is basically no PCMCIA interface, and the laptop has a variety of PC expansion slot that can easily connect a variety of peripheral products.
3, on the CPU and other major parts: mobile PC CPU are based desktop CPU, mostly P4 series, but they use a laptop CPU dedicated portable laptop CPU, the current mainstream laptop CPU is C4-M and PM series . Mobile PC motherboard is basically using the integration of SIS integrated motherboard, memory also many ordinary SDRAM, DDR memory is relatively small, hard drives are mostly small-capacity 5400. The laptop CPU, motherboard, memory and hard drive are all private.
4, on the performance: mobile PC with a desktop accessory, can not be compared with the use of special accessories for laptops in performance. Although some mobile PC also done quite fine, but far laptop to be bulky.
5, on the heat: As a result of the mobile PC desktop accessories, so a large amount of heat and power, which is the mobile PC will crash often causes. The laptops are generally used advanced copper heat pipe thermal technology, with smart cooling fan, separate space for heat dissipation, ensure the stability of the system is running.
6. About the price: As a result of the mobile PC desktop accessories, the price is lower than a laptop, and laptop with the mainstream configuration, the general price will be in the million or more.

Thin and light laptop purchase tips guide

Good selection of thin and light laptops, not just look at the weight of so much simpler. Design, workmanship, heat, interface layout, etc. are very important. Single-processor, battery, hard drives and other three hardware specifications, we do not know enough to make friends dizzy. Therefore, we in the selection of thin and light laptops, to Zhiyizhibi, do a few chest, businesses will not be easily fooled.
In fact, thin and light laptop is not difficult to buy, as long as you hold grip the following few notes, I believe you will be able to do more with less, to my mind quickly choose the perfect thin laptop products.
The first step: look slim standard
First of all, we have to figure out what kind of laptop is thin and light laptop category. Prior to 2008, there are many on the market name of “frivolous” under the banner of so-called “thin and light laptop,” but in fact, they do not light, nor thin. And for a long long time to know, cause consumer thin and light laptops have a wrong perception. Many of my friends within 13 inches of the laptop, are not and will be classified as thin and light laptops. No matter how bloated their body, how excessive weight. It was also called the Internet this thin and light laptop, in fact, its performance can meet other basic Internet applications only, can not be considered a full-featured laptop.
But with the introduction of thin and light laptop standards, such businesses to mislead the consumer era has ended. Now, through our evaluation criteria thin laptop has been very clear: the weight of not more than 1.8Kg; thickness not exceeding 35mm; screen sizes between 11-13 inches. When the product complies with the above three conditions, in addition to performance can not be discounted, it can be referred to as “thin and light laptops.”
Therefore, consumers in the purchase of thin and light laptop, be sure to look at the books of the “measurements.” Determine its “height and weight,” before making a decision, of course, this is only the first step, the next step is the “core” of the knowledge of this.
Step Two: Look processor
Now the market has been able to comply with a large number of thin laptop standard full-featured ultraportable laptop appears, the key is because Intel has just launched an ultra-low voltage (ULV) processors. Intel ultra-low voltage processor while maintaining high performance while significantly reducing power consumption, and therefore ULV processor-based ultra-thin laptops only, its performance can also support the use of more complex and multi-window operation, rather than the Atom processor as with the Internet-based only for basic applications.
According to Intel’s naming convention, S said with a small packaging technology, the entire processor package size can shrink 60%, reduced processor brings a series of narrow board components, enabling better and more compact in the laptop space and thermal design; and L represents a low voltage, U on behalf of ultra-low voltage, these indicate that its performance is maintained at mainstream laptop performance while significantly reducing power consumption, not only to extend the standby time, heat is also better. So for a full-featured ultraportable laptop, its top-secret weapons without exception comes from Intel’s ultra-low voltage processor, so when you buy can also be spotted processor model, U, L, SU or SL.
How to see the laptop processor model it?
There are two ways you can quickly get a laptop processor specific model: First, look at the laptop palmrest LOGO and configuration table; two, turn on the computer, enter the system (vista, XP), click “My Computer”, then right and select Properties. Both come.
The third step: look slim Index
What is thin index it?
Weighs less than 1.8Kg; thickness not exceeding 35mm; screen sizes between 11-13 inches. When the product complies with the above conditions, it can be referred to as “thin and light laptops.” But there is also a big difference between the thin and light laptop, so we developed a “frivolous index.” “Frivolous index” is divided into 1-5, etc., the higher the index of the description of this product, the better light.

Coincidentally distinguish Apple laptop mainstream and parallel

In recent years, the laptop can be described as “a set of thousands of pet”: whether it is the classic “white”, or you can put in the Air bags have attracted a large number of fans. Because many consumers do not understand the difference between “parallel” and “routine”, the result of the loss and inconvenience of maintenance on the economy. Today I want to teach you is to distinguish the difference between Apple’s laptop “parallel” and “mainstream” of.
The so-called “mainstream” refers to the production or purchase through normal channels of foreign origin from factory in mainland China and has paid a tariff products, licensed manufacturers’ warranties are proof thus higher prices. The parallel is defined by foreign, Hong Kong, Macao and Taiwan regions have not been normal customs channels to enter the mainland market products, low prices, but generally not subject to domestic manufacturers warranty permission. We heard in the market, “walkway” or “US Bank” Apple laptops are actually “parallel imports”, along with the “mainstream” laptop configurations are generally the same.
Some people might say “parallel” price a lot more than “routine” cheap, two machine configuration exactly the same, why not buy it? There are two reasons:
First, the “parallel” can not guarantee the quality of many of the so-called “parallel” are actually refurbished goods, Paul allowed profiteers to give you a piece of shrink disk memory or unloaded from the other machines?
Second, the “parallel” maintenance inconvenience, some dealers will say: “We help you solve maintenance”, but if your machine is a problem, the dealer is likely wrangling.
On the Zhongguancun electronics market, many profiteers often use a huge difference between “parallel” and “routine” to earn “Mei Xin money”: dealer you might say: “sell this machine on Apple’s Web site ten thousand eight I sell you only thirteen thousand, five thousand cheaper, do not you go online to look up the letter, which is the lowest of the whole Beijing. “Consumers are often unknown to really think pie in the sky, and the results to buy a home machine is “parallel”, the warranty is very troublesome and dealers also “black” him two thousand dollars.
Outside the box on the different
So the difference between how Apple laptop “mainstream” and “parallel” mean? Just from the appearance of the machine, it is difficult to find difference between the two: the same mold, the same interface, the same color ……, if not below a few “tricks”, I’m sorry, I can not tell.
A difference on the packaging:
Saw the first picture below, you can distinguish which is the “mainstream” it? I tell you, on the left there is a yellow cardboard luggage is truly “mainstream”; and “parallel” Apple laptop without this layer of cardboard packaging boxes. Specific reasons unknown, according to the author estimated that “parallel” no cardboard boxes may be in order to save space in transport time, one can take a few more laptops, so save the freight.
Second, the number of different bar code:
On an Apple laptop each box has a bar code, there is a line at the top of this bar code number: (Part No.), there is a number such as the following are “Part No. MB881CH / A”, the other a number is “Part No. MB471LL / A”. So, what is “mainstream” mean? The answer is “MB881CH / A”, there’s “CH” is “China” in the acronym that stands in mainland China production, natural is the “mainstream of the”; and “MB471LL / A” is the US production, a “parallel” ; there are other “walkway” and “Singapore” and “parallel”, not go into here, just remember that there is a bar code number “CH” word on the line.
Third, whether the body “3C” certification:
If you’ve bought the Apple laptops, but could not find the box, and then how to do it? Do not worry, you just turn the bottom of the machine, see if there is a painted oval inside the CCC mark, this is the famous “3C” certification. Without this flag, then congratulations, you are the dealer fooled. 3C certification is short for China Compulsory Certification, the English name “China Compulsory Certification”, it is the Chinese government in accordance with the relevant agreements and international rules of the WTO, in order to protect consumers personal safety and animal and plant life, protect the environment national security, in accordance with laws and regulations to implement a product conformity assessment system.
This is not only in the Apple laptop, Apple’s all “mainstream” products have this logo, I was in “ipod shuffle” small clip on the back of seen this logo. “3C” certification also applies to the ThinkPad laptops, Samsung mobile phones and other “parallel” more products.
Fourth, the box whether the “three bags of evidence”:
Related to the vital interests of consumers the greatest possible service problem is, if they accidentally bought a defective, you can also discuss a “statement” Yeah. Well, you look tight, “three bags of evidence” it. Specifically Apple laptop packing boxes, there is a small blue leather book, not the “small” probably not “mainstream”, even “mainstream” not normal warranty.
Three bags retail commercial enterprises to “repair, replace or return,” the abbreviation for the sale of goods. Include:
First, the “7” states: the date of products sold within seven days, the occurrence of performance problems, consumers can choose to return, replacement or repair.
Second, “the 15th” states: the date of the product sold within l5 days of performance failure occurs, consumers can choose a replacement or repair.
Third, the “warranty period” states: “Three Guarantees” is valid from the date of invoice calculations. Apple laptops are typically one-year warranty.

Laptop keyboard can not be used solutions

First, why not use the keyboard
Computer keyboard can be said to be in daily use, contact one of the largest interactive devices and users, often the kinds of problems now, the keyboard can not be used in a wide variety of phenomena often bring problems to users. Let the user to use, you may encounter the keyboard can not be used to analyze the phenomenon.

1, the cable can not be used Keyboard
Keyboard keyboard cable break will cause intermittent failures
Many users daily use, you will find all the keyboard keys suddenly invalid, the keyboard status lights go out at the same time along with key failure. Users move the keyboard, or the restart after the keyboard and can return to work. This phenomenon can not be the main reason for the keyboard, the keyboard cable is often repeated bending or aging, causing internal cable breakage virtual access, such as a strong player ability, you can try to replace the keyboard cable to resolve.

2, the main failure resulting string key can not be used
Master chip failure resulting string key phenomenon
User process, we will encounter the phenomenon of serial key can not be used. After the performance for the user to press a key, the key input response of other keys. For example, press the "A" key, "B" letter, which is due to the internal keyboard controller chips, code libraries caused problems. Manufacturers can re-flash the firmware to fix string key phenomenon. Ordinary users can not repair themselves. If the failure is still under warranty keyboard, you can point to a repair maintenance and replacement, if you have had insurance, only to re-purchase.
Second, the keyboard can not be used for reasons

3, a single keyboard can not be used
Film circuit fault is a single / multiple keys can not be the reason
Single keyboard can not be used, that will affect the user's daily use, letting users feel gesture. The Failure of the overall performance of using the normal keyboard, but the keyboard is a local one or more keys, there click unresponsive or intermittent failures. The cause of the problem, because the keyboard film conductive line inside a fracture caused by virtual access. Part of the hands-on ability of the player, you can use a multimeter to measure open circuit after the find, then use conductive paint or pencil repair. As for the average player, or directly replace the keyboard more peace of mind easy.

4, mobile phone leads to a keyboard can not be used
Poor quality of phone calls when the keyboard will cause interference
Users in the use of computers, may also find a very strange phenomenon keyboard can not be used. The symptoms manifested on the keyboard side of the phone to the phone, the keyboard does not use all the keys phenomenon of. The problem is mainly due to inadequate internal keyboard shielding design. Phone when the phone is turned on, the wireless transmitter power increases, will cause some electromagnetic radiation, shielding the internal keyboard design is bad, it will interfere with the normal use of the keyboard, for this keyboard, or as early as possible to replace the players, in order to avoid daily use caused trouble.
Third, the driver causes the keyboard can not be used

5, driver exception causes the keyboard can not be used
Drivers can cause damage by viruses keyboard failure
V above, are due to a hardware problem or a design flaw caused by the product itself can not use a keyboard, viruses and software reason, will result in the phenomenon of the keyboard can not be used. Users discovery keyboard failure. View the device in Device Manager, you will find a yellow exclamation mark appears on the keyboard device. Some computer experts can accordingly by removing the registry key, and then reload the device to fix. But for most ordinary users, the problem occurs, the most easy solution is to reinstall the system (because the keyboard can not be used after a problem).
6, laptop keyboard does not work properly
Of course, for laptop users, the most common keyboard failure is the most common phenomenon is that the letter keys on the keyboard is pressed, the playing out not correspond to the letters, but a bunch of numbers, a phenomenon that so many novice users headache . The reason, in fact, because between the user inadvertently open the keypad on the keyboard.

Printed on the right side of the laptop keyboard buttons with yellow numbers
Because of the limited size of the laptop, the keyboard layout are compact, no separate numeric keypad. When part of the user will experience high frequency input digital use. Computer manufacturers to address this phenomenon, using an ingenious solution, the design part of the button on the right side of the keyboard into a tilted numeric keypad, and then add one other key combination to achieve by FN button keypad open. Just find the laptop user on the keyboard printed with NumLock key, then press together with the FN button, you can reset the keyboard.

Laptop keyboard failure workaround

One reason: some letters break out numbers, resulting in not playing
1.Fn + NUMLOCK switching method
We first hold down the Fn key] (Fn key general in the lower left corner of the keyboard) and press [Num Lk] (usually in the upper right corner of the Num Lk, F11 keys

Face, of course, a different location is different laptop), we can press the key combination of these two letters become digital, which is the most commonly used

Methods.
2. The on-screen keyboard to switch law
The above method a laptop if you can not change the digital switching letters, one that happens to your keyboard problems, two soft

Pieces of compatibility issues, then we have to pass another way to change the laptop keyboard letter numbers, specific steps are as follows:
Click [Start] menu, then select [Programs], then select [attachment], then select [Optional] auxiliary tool to find [screen keyboard],Set to enter the on-screen keyboard, screen keyboard keypad area has a [key] NLK, click on this button to order, and thus achieving a note

The keyboard letter change numbers switched.
Two reasons: the laptop will not switch input methods
1. Use the right mouse button to click on the bottom right corner of the desktop input method, and then select the Settings option in the pop-up menu.
2. In the pop-up interface, we do not need to select the input method, and then click delete it, then click OK to exit.
Three reasons: failure of the laptop keyboard
1. First of all potential users careless handling. Because the laptop hardware problems include numeric keypad keys and letter keys are integrated together,General press fn Numlk key to intelligent switching to a small numeric keypad. Sometimes we become key figures in alphabetical a why. All buy pens Oh, look at the instructions of the laptop.
2. Of course, what this mistake will be solved, but still useless if so, it may be key failure, and sometimes, we press the button Plate, there will be a lot of mess of letters or numbers. That may be where there is a button is pressed down, the reasons for not playing up, so Keyboard each inspection excluded.
3. Try to change the keyboard driver, by modifying the laptop keyboard driver. Click "My Computer" - Select "Device Manager" to find "Keyboard "option, usually the default keyboard driver is" standard 101/102 key or Microsoft Natural PS / 2 keyboard. "Xiao Bian is Microsoft Natural PS / 2 keyboard, then right-click on the keyboard driver, selecting "Update Driver" option, there is a hardware update
Wizard, select "Install from a list or specific location (Advanced)" and click "Next" and select "Do not search, choose to install Driver. "
After clicking "Next" to enter the "Select install this hardware device drivers" on page remove the check box "Show compatible hardware" before the Komagari. In the "standard keyboard type" field select "Japanese PS / 2 Keyboard (106/109 Key)", click "Next", pop"Update Driver Warning", select "Yes." "Confirm Installation" window continues to point "a" to complete the hardware update wizard. Then restart the computer.
4. Modify the registry, click "Start" - "Run", type "regedit", open the registry, in the pop-up the Registry Editor to find To "HKEY_LOCAL_MACHINE SYSTEMControlSet001ControlKeyboard Layouts" careful examination will find a "0804
"At the end of both Simplified Chinese input method. Open" E00E0804 ", you can see the right side of the child, there are" Layout File "subkey, double-click Open this, the "Value data" in the "kbdus.dll" to "kbdjpn.dll", "OK". We can all To "0804" at the end of the subkey "Layout File" All change "kbdjpn.dll", specifically based on his popular input method Choice. Then restart the computer just fine!
5. If the above operations can not be repaired, it may be completely broken laptop keyboard, then they would replace the keyboard, the keyboard is very expensive to replace, And very troublesome. We can buy a desktop keyboard, you can connect the laptop to operate via usb interface.

Laptop keyboard failure workaround

One reason: some letters break out numbers, resulting in not playing
1.Fn + NUMLOCK switching method
We first hold down the Fn key] (Fn key general in the lower left corner of the keyboard) and press [Num Lk] (usually in the upper right corner of the Num Lk, F11 keys

Face, of course, a different location is different laptop), we can press the key combination of these two letters become digital, which is the most commonly used

Methods.
2. The on-screen keyboard to switch law
The above method a laptop if you can not change the digital switching letters, one that happens to your keyboard problems, two soft

Pieces of compatibility issues, then we have to pass another way to change the laptop keyboard letter numbers, specific steps are as follows:
Click [Start] menu, then select [Programs], then select [attachment], then select [Optional] auxiliary tool to find [screen keyboard],Set to enter the on-screen keyboard, screen keyboard keypad area has a [key] NLK, click on this button to order, and thus achieving a note

The keyboard letter change numbers switched.
Two reasons: the laptop will not switch input methods
1. Use the right mouse button to click on the bottom right corner of the desktop input method, and then select the Settings option in the pop-up menu.
2. In the pop-up interface, we do not need to select the input method, and then click delete it, then click OK to exit.
Three reasons: failure of the laptop keyboard
1. First of all potential users careless handling. Because the laptop hardware problems include numeric keypad keys and letter keys are integrated together,General press fn Numlk key to intelligent switching to a small numeric keypad. Sometimes we become key figures in alphabetical a why. All buy pens Oh, look at the instructions of the laptop.
2. Of course, what this mistake will be solved, but still useless if so, it may be key failure, and sometimes, we press the button Plate, there will be a lot of mess of letters or numbers. That may be where there is a button is pressed down, the reasons for not playing up, so Keyboard each inspection excluded.
3. Try to change the keyboard driver, by modifying the laptop keyboard driver. Click "My Computer" - Select "Device Manager" to find "Keyboard "option, usually the default keyboard driver is" standard 101/102 key or Microsoft Natural PS / 2 keyboard. "Xiao Bian is Microsoft Natural PS / 2 keyboard, then right-click on the keyboard driver, selecting "Update Driver" option, there is a hardware update
Wizard, select "Install from a list or specific location (Advanced)" and click "Next" and select "Do not search, choose to install Driver. "
After clicking "Next" to enter the "Select install this hardware device drivers" on page remove the check box "Show compatible hardware" before the Komagari. In the "standard keyboard type" field select "Japanese PS / 2 Keyboard (106/109 Key)", click "Next", pop"Update Driver Warning", select "Yes." "Confirm Installation" window continues to point "a" to complete the hardware update wizard. Then restart the computer.
4. Modify the registry, click "Start" - "Run", type "regedit", open the registry, in the pop-up the Registry Editor to find To "HKEY_LOCAL_MACHINE SYSTEMControlSet001ControlKeyboard Layouts" careful examination will find a "0804
"At the end of both Simplified Chinese input method. Open" E00E0804 ", you can see the right side of the child, there are" Layout File "subkey, double-click Open this, the "Value data" in the "kbdus.dll" to "kbdjpn.dll", "OK". We can all To "0804" at the end of the subkey "Layout File" All change "kbdjpn.dll", specifically based on his popular input method Choice. Then restart the computer just fine!
5. If the above operations can not be repaired, it may be completely broken laptop keyboard, then they would replace the keyboard, the keyboard is very expensive to replace, And very troublesome. We can buy a desktop keyboard, you can connect the laptop to operate via usb interface.

Laptops can not be switched treatment

Repair method crash failure occurred while loading the operating system for laptops as follows.
(1) First, make judgments based on the error message is displayed. If you start looking for the hint system files missing, you may be missing or damaged system files. You can copy the same service from a computer operating system other missing files to the computer failure (some system files are not universal).
(2) If the blue screen, suggesting that the system can not find the file specified file when you start, for the hard disk damage cause the computer system files can not be read due. Boot disk computer, run "Scandisk" ScanDisk can detect and repair hard disk damage.
(3) If no such fault, first killing the virus with anti-virus software, then use the "safe mode" to start the computer. If you can not start, it may be mainly damaged system files, reinstall the operating system.
(4) If you use "safe mode" to start the computer, and then restart the system and then quit to see if the crash.
(5) If you still crash, followed by Windows registry backup recovery systems (such as the system does not start, then use the boot disk), to see whether it is normal after recovery.
(6) if it crashes, then enter the "safe mode", open the "Start / Run" dialog box, type sfc and press Enter to start the "System File Checker" to start detection system, such as to detect the error, the screen will prompt specific damage the name and path of the file, and then insert the system CD, select "restore files" command, was lost or missing files will be restored.
(7) Finally, if the system still crashes, then re-install the operating system.
The BIOS battery discharge (recovery BIOS factory defaults) proposed swap out video card, memory, clean up health and polished graphics, memory of Goldfinger.
Unable to start the operating system of various diagnostic methods are as follows.
First check when turned on, the computer is the operating system has started. If you start the operating system crashes, blue screen or reboot, the hard drive's partition table and master boot record properly, exclude hard disk partition table is damaged, corrupted hard disk master boot record, partition the hard drive missing end marks the cause of the failure. Then use the following method for diagnosis.
Step 1: First start the computer in safe mode and see if you can start, if not start, it may be infected with a virus, system files are missing, operating system corruption, hard drive has bad sectors, hardware conflicts or hardware problem, go to step 4; if you can boot in safe mode, it may be a hardware driver is not compatible with the system, the operating system has a problem or infection caused by a virus.
Step 2: Next, run anti-virus software, if there is a virus, it may be caused by a virus, restart the computer after a virus, if not normal, you need to reinstall the operating system.
Step 3: If no virus is detected, you can use the operating system comes with the "System Restore" function to restore the system, if the system is restored to normal after the failure is caused by damage to the system. If the problem persists, it may be a device driver is not compatible with the system caused; then the driver sound card, video card, network card and other equipment removed, and then install the drivers, each installation of a device to reboot a computer to check the which device driver failure caused, after check out, download a new version of the faulty device driver, and then install it.
Step 4: If you can not boot from safe mode, then use the CD to reinstall the operating system. If you can properly install the operating system, turn seven steps; failure, such as crashes, blue screen, reboot when installing the operating system if the cause can not install the system, you should be a hardware problem or a hardware caused by poor contact.
Step 5: Then clean the computer of dust, clean the memory, video card, gold finger, reinstall the memory device, and then re-install the operating system, if properly installed system, it is a failure caused by poor contact.
Step 6: If you still can not install the system, it may be caused by a hardware problem. Then check with the substitution of hardware failure, after hardware replacement is found.
Step 7: If you can properly install the operating system, and the fault disappears after installation, it is the fault system file corruption.
Step 8: If you install the operating system, the fault persists, it may be caused by the hard disk has bad sectors or device driver is not compatible with the system caused by. Start the computer in safe mode, if not start, it is a hard disk failure caused by bad sectors. Then use NDD disk utility repair bad road.
Step 9: If you can start in safe mode, the device driver is not compatible with the system caused. Then the sound card, video card, network card, delete, and then install the driver, install a start time, to check that the fault which caused the device driver. Check out, download a new version of the faulty device driver, and then install it.

The reason can not open the laptop machine

Generally this case belong to memory or hard disk failure caused, of course, there may be a system failure, when the presence of memory or hard disk failure or plug not read data has caused real crash situation, it is recommended to shut down and re-plug the memory hard disk, then the case is not connected to the supply of several press the power button, press the power button on the motherboard capacitor purpose is to let go of residual power.
Reboot, if the fault persists, try to detect system status, or sent for testing and maintenance.
Crash failures occur when you start the computer, can be divided into two kinds of POST is a crash occurs when the crash occurred, and load the operating system. Self-test when the computer crashes fault specific repair methods are as follows.
(1) First determine the occurrence of failures before the computer, if the computer is crash occurred after the move, the computer may suffer great shock during the move, resulting in loose parts inside the computer crashes caused by poor contact. Open the case of the memory, graphics cards and other equipment to re-tighten.
(2) After the crash can not happen if the computer is started upgrading the BIOS, it may fail to upgrade the BIOS or upgrade the BIOS program files are not compatible with the computer hardware, using the original BIOS file recovery program can be.
(3) If, after the occurrence of a computer crash in the BIOS setup program can not start, set back off or modify BIOS settings BIOS program "LOAD BIOS DEFAULTS (pre-loaded standard settings)" option, you can recover the BIOS program .
(4) If the computer is overclocked CPU crashes or fails to start after the upgrade, it may be because the computer CPU overclocking or upgrade caused the crash, the CPU frequency back to normal frequency or return to the state before the upgrade.
(5) If the start-up, the display screen prompts "Keyboard Error (keyboard error)" or "Hard disk install failure (hard disk installation fails)" and other instructions related equipment is not connected or damaged, reconnect or replace faulty equipment can be.
(6) If the screen prompts "Disk Boot Failure (invalid startup disk)" is a system file is missing or damaged, or hard disk partition table is damaged, repair or restore the system files to the hard disk partition table.
(7) if not above question, then check the chassis is clean, because dirt and corrosion computer interface circuit will cause poor contact between the devices, causing crashes, so clean the dust and device interface, related to the dust caused by the failure to exclude.
(8) If the fault has not ruled out, finally rule out hardware compatibility issues and quality problems with the substitution.

Loss how to repair laptop battery laptop battery calibration method Daquan

Speaking of the advantages of laptops, I believe many of my friends will mention its portability. Yes, laptop biggest feature is excellent portability, allows us to feel the computer anywhere bring us pleasure. While at the same time has an excellent portability, the laptop's battery life issues are also users are most concerned about that.
Lift the battery life, we have to talk about laptop battery, and for those expensive laptop accessories, the status of the battery does not high, but it does not mean that low status is not useful, like a good movie, there is the protagonist and the supporting role of the points, and the role of the laptop battery is a supporting role, usually look like much, but at the critical moment, it's important to highlight. Therefore, the battery is good or bad state will be directly related to the ability to work in the absence of the laptop DC power situation.
Laptop battery calibration
So how do we come to the proper maintenance of battery it? Those battery calibration software in the end tube regardless of use? Then I announced one for everyone.
Verify that a: BIOS battery calibration function
Now the laptop is particularly prevalent, whether or indoors, we will use in the outdoors, especially when traveling or meeting, thanks to a battery-powered laptop. Over time we will find that the battery life time is not the beginning of that long, and before you can use three hours, now only two and a half hours of battery life even shorter time. This in the end is how it's going children?
Shorter battery life, the battery itself is not necessarily a problem
For the time battery life of less than one year shorter, more often than not because of improper battery or battery normal aging, but because in a number of battery charge and discharge process, laptop BIOS battery power system produces false positives . There have been some battery power, but they mistakenly believe BIOS battery is exhausted, so that books forced shutdown. If there is a situation that the battery life has shrunk, the first not to blindly believe the battery quality problems or improper use, we can use the "Battery Calibration" The simple way to make the remaining battery full.
How "Battery Calibration"
Battery calibration method is usually three ways: using the BIOS battery calibration procedures, and the use of artificial means battery calibration third party battery calibration software. These three ways to use the most convenient user is the second, the effect is good; and the first paragraph only applies to older laptops, involves relatively small; third there is a certain risk, small in the case of tests on to pit father thing. Next, I will introduce to you one by one.
Standard calibration method: using the books in the BIOS battery calibration function
This is the method applies only to part of the old laptop, involved a smaller surface. These laptops are integrated inside its BIOS battery calibration procedures, the general statement in English called "Battery Calibration", namely "Battery proof." Directly into the laptop BIOS battery calibration operation can be done here in a small series of Asus A8 laptop, for example, talk about how simple operation, similar to other books of the operation.
The first step:
Press laptop keyboard swift boot "F2" key to enter the BIOS menu after; by left arrow keys, select to enter Power menu.
Step two:
Power to enter the menu, you can see "Start Battery Calibration" option, select it and press the Enter key.
The third step:
Then the screen turns blue, and English prompted to plug the laptop power adapter to charge the battery. Once the battery is fully charged, the screen also prompts the user to disconnect the power adapter. After the start of continuous laptop battery discharge until the battery depletion.
Step Four:
This step requires a longer time, you need to wait for the laptop battery runs out after the automatic shutdown, and then connect the power adapter to charge the battery, but do not turn it on. Such as charging is complete (charging indicator light goes out), the battery calibration process is completed.
Comments: This battery calibration method applies only to home in the old section of laptop users (some models only), and the entire procedure also requires 4-5 hours, more time-consuming. If you find that your laptop battery maintenance is very good, and life is pretty good life, but the laptop's BIOS with this feature, it is recommended to implement it.
Verify II: adjust system settings for battery calibration
The first method, although effective, but only part of the old models, but we now use laptop batteries can not find the correct option in the BIOS, it can only make these laptops through our books in some settings manually discharge until normal operation automatically shut down.
In addition, I remind you that the battery calibration is the process of charging and discharging the battery, but it is not the purpose of our imagination to activate the battery, because laptop batteries are lithium batteries, activation problem does not exist. The real purpose is to let the computer charge and discharge capacity of the battery re-understanding. So, to try to put a clean power, allowing laptop work under less power, so the effect of correcting to do. Then we take a look at the specific method of operation.
The first step:
We chose this test for ASUS laptop N55, WIN7 Ultimate operating system, the first to enter the "Control Panel" in the "Power Options." Because ASUS Power4 computer has its own energy-saving system, so we have seen in the options, in addition to WIN7 system comes with three options, there are two options for saving Power4 systems. Here we just choose a battery plan, after entering the "Turn off the monitor" and "System Standby" are all set to "Never."
Step two:
Then we select the "Change advanced power settings", the "battery" option to cancel all options, to let off until the battery is completely depleted.
The third step:
After set up, close all applications, shut WIFI, unplug the power adapter, power supply with battery. Do not do anything until it shut down automatically after the battery runs out. This process is estimated to be longer, it may take several hours. After the discharge is completed, connect the power adapter, the battery is full, then completed a battery calibration.
Comments: After the correction, we can try the battery life is increased, if not obvious, you can follow the above method once again, but not recommended frequently. If the battery has a longer duration of use, and do a battery calibration, the effect is not obvious, it may be the battery life of its own natural aging. In addition, if the laptop battery life is normal, we do not recommend battery calibration operation.
Verify III: battery calibration software
Finally we get to the aid battery calibration software, and now there are many online similar battery calibration software, I also pick and choose the one experiment, let's take a look at the results and validate the procedure.
The first step:
This step is relatively simple, as long as we are content to follow Previous said first set battery management options, and then confirm that the battery has been fully charged, and unplug the external power plug.
Step two:
Open the "Battery Doubler" main interface, the "Wizards" tab, click on the "Recalibrate battery" option. In the dialog box that appears, click on "Next" button, begin to discharge the batteries to operate. Do not ignore it, to be completely out of power, the computer automatically shuts down.
The third step:
The battery is completely flat, off connect the power cord and the battery is fully charged, we will complete a "battery calibration" operation.
Editor Comments: This software, although the battery can be corrected, but the effect is not very obvious. In addition, there are many online battery calibration software with a Trojan virus, the computer has some damage. And author in the testing process also occurred crash situation, the stability of the software in general, it is recommended that you do not use this method battery calibration.
Battery use common problems and solutions (a)
Laptop batteries often occur in the course of a number of issues, some questions about books and their use has little effect, but some problems, let us compare headache friends.
One problem: the battery is installed repeated several times, still can not boot
Cause: 1. The battery is installed incorrectly dead battery 2. 3. 4. battery idle for too long did the depth of discharge treatment 5. Other reasons
Solution:
1. Carefully check the power connector and battery interface link is correct.
2. Replace the battery, use the adapter to activate the batteries, in the case of not unplug the adapter does not boot, boot again.
3. Always check the battery power and do not idle for too long.
4. Replace a new battery.
5. Try to press the power button to turn it on.
Second problem: the battery is idle for too long, when power is reduced or reused without electricity
The cause: an idle power until the battery itself is not much 2. quality problems or storage environment, natural wear and tear occurs battery 3. idle for too long, without the right to charge and discharge operations
Solution:
1. If you want to store the battery before storing it in the battery charge to 50% capacity storage.
2. Try to store the battery into some relatively dry place, the most suitable temperature is about 20 degrees or so.
3. Since the loss of the phenomenon also occurs with full power can be used normally.
4. If you do not trust, then please replace a new battery.
Question three: the battery is fully charged display, but you can not unplug the power adapter after normal, eventually leading to crashes
Cause:
1. The working environment temperature is too high, causing the battery into the self-saver 2. Battery problems in the charging process, resulting in distortion power display
Solution:
1. Shut down the computer, remove the battery cooling the battery reaches normal temperature during normal working environment, because self-protection program can recover on their own.
2. Replace an original battery check whether the same problems in the same environment, if there is no similar problems, please contact the user service points, and check whether the machine is malfunctioning.
3. The right to keep and use the battery, so as to avoid distortion.
Battery use common problems and solutions (two)
Question 4: battery is installed correctly self discharge and normal operation of the laptop, but the battery display an error message
Cause: damage to the battery connector interface is bad or laptop or laptop batteries and exchange data
Solution: Replace an original battery, if there is the same fault, it is a contact damage laptop battery interface, in need of repair. If the fault is removed, then the output interface is partially damaged batteries, the user to specify the brand of maintenance, repair or replace the battery.
Question 5: users want to buy a second battery, compatible with the original battery hesitant
Cause:
1. a battery can not meet user requirements 2. The machine comes with a battery problem 3. original battery is too expensive, while the market compatible battery too
Solution:
1. If you feel that a battery is not enough, you can buy two original adapter, put one unit, the family put an anytime, anywhere for laptop charging.
2. The proper maintenance of the battery, pay attention to the use and maintenance of the environment
3. It is recommended that users do not buy a compatible battery, compatibility is not good because there will be problems, we recommend users to buy genuine battery, or to buy a stuff called UPS uninterruptible power supply, it can protect the computer system continues to work for a period after power outage time to enable the user to save an emergency, so you do not work due to power failure or loss of data affected. In addition, the price is not expensive.
Question 6: In the state with the adapter installed battery immediately after the computer automatically shut down
Cause: short-circuit interface portion of a battery failure or a battery lead
Workaround: Users need to immediately remove the battery, and do not attempt to install the battery again, replace the battery as soon as possible to the service point.
Through these six problems often can be seen, the cause of battery failure is often caused because of incorrect usage and preservation methods result, very few machine phenomenon is the problem, then how do we correct maintenance of the battery? Then I will tell you about the method.
Four laptop battery maintenance methods
Laptop battery quality and endurance are all special care when buying a laptop, in fact, how to make good use of laptop batteries, how to extend their use of time and the use of life and other issues, is undoubtedly plagued the majority of laptop users a problem, but the laptop use the battery and there are many techniques, which requires us to pay more to learn and use the application in peacetime. Next, a brief comparison four kinds maintenance methods. We want to help.
1. First, the user wants to make books of battery longevity, it needs to have a good start, when we buy laptop battery should be some remaining capacity, which is to allow users to test the machine to use (if you find that the battery battery is full, then the proof of this machine was used), this time, you should not use an external power source, the battery inside the power exhausted, until the shutdown, and then use an external power supply charge.
2. Do not charge the battery to the laptop in the rain: rainy often thunder, lightning instant of impact caused by the current of the battery is extremely unfavorable terms. In addition, the stability in the process of using the laptop battery voltage is also particularly important. Users should avoid the laptop power adapter and high-power electrical appliances (eg air conditioners, refrigerators, washing machines) connected to the same power outlet.
3. regular battery maintenance: If you can not guarantee a thorough clean every time used to recharge the battery, then at least once a month for a standard charge-discharge (ie, clean and re-filled after full release), or regular use BIOS built-in battery calibration function for maintenance, so that the longer battery life is very good.
4. If some users do not use the battery long time, you need to charge the battery to charge more than 50% during storage, it is a good follow-up using the battery. In addition, during storage must pay attention to the indoor temperature, high or low temperature of the battery is relatively large, the best storage temperature is about 20 degrees.
Replace the batteries correctly distinguish laptop battery
Now comes the battery, then the user choose when purchasing books picked battery is good or bad it will be inevitable, and the most intuitive way is to look at the battery capacity batteries. Currently the market for a laptop, because depending on the size and performance, it is equipped with different types of batteries, which are mainstream books with 6-cell battery, and the large size of the books, most equipped with 9-pin or 8-pin batteries, small size and thin this general with the 3-cell or 4-cell battery. These parameters are only played when equipped laptop, users can also choose their own capacity of the battery size.
There are also some more friends to know laptops selection of products will be more focused on the battery "mAh (milliamp hours)," the size of the units. In general, many of my friends will think big mAh unit will have a longer battery life, but the reality is not the case, we can often see on the laptop battery "6-cell 4400mAh", "4 core 2200mAh", etc. the nominal value of the battery, over time we believe that directly determines the capacity of 4400mAh or 2200mAh laptop working hours. But in fact the real master of the battery capacity of a unit should be considered "Wh", whose Chinese name is "watt." Of course, "Wh" and "mAh" is closely related to the following formula: Wh trout × 1000 = mAh. And we will see on the battery "11.1V 4400mAh 48.84Wh" such numbers, then these digital how a relationship it is very simple, we only need 11.1V × 4400mAh = 48.84wh.
In addition, I also mentioned before the current market several commonly used battery, then how come we have to verify its accuracy it, a professional approach, we only need to know the battery voltage and battery capacity can know in the end is a few core friends. While the other is a laptop of this approach, we only need one AA batteries weigh roughly, we can estimate how much the core.
Number of battery cell calculation methods:
Batteries Voltage: Voltage value 3.6 or 3.7 = n1
Batteries capacity: capacity value 2200,2300,2400,2600 = n2
The total number of battery cells: n = n1 * n2
For example: If a voltage is 11.1V, 4400mAh capacity battery, its number of batteries: n1 = 11.1 / 3.7 = 3 n2 = 4400/2200 = total number of two battery cells is: N = n1 * n2 = 3 * 2 is the 6-cell.
I believe that, with the above two examples users can rest assured to pick up and also prevents the battery again been fooled scene, we only need to remember these two formulas, we can easily solve the problem of the selection of batteries friends.
Replacing the battery of the laptop battery to Buy
Currently laptop accessories market can be complicated, especially this one laptop battery, counterfeit original, refurbished old batteries, no name and address, the warranty becomes an empty and so issues abound. So how do we buy laptop battery it?
First thing to say is that the battery of the warranty period, we see the battery market, there are many, the warranty period can be divided into several, such as three months, ah, six months, ah, ah, and so a year. We say that in a year's warranty product is A grade raw material, has a wealth of experience in laptop battery development, improve the quality and process control, this battery are generally genuine original. The three-month or six-month product almost have one thing in common, that is, neither the manufacturer, address, telephone number, neither the content of the protection nor the scope of protection, most of this battery is removable battery recycling electronic waste core and protection board, and even some not even protect the board are not, the cost is very low, the use of very dangerous, consumer rights can not be guaranteed.
Secondly, try to say is that users do not buy a compatible battery, although compatible battery is cheap, and soon you can get, but also the presence of danger, such as compatibility issues, too, but off the battery quality and so on. So I recommend that you buy the original battery, quality and security, although the price is too high, but the user can also rest assured that after the bought ah, if some users do not want to buy original battery, then buy a UPS uninterruptible power adapter or bar.
Laptop Battery Maintenance Mistakes

Misunderstanding: laptop battery without having to run out of battery after charging
Now laptop batteries are lithium batteries, lithium batteries, the batteries run out again full time do not have any effect, or even harmful. Because lithium does not exist so-called "cache" effect, only the early nickel batteries have this feature. Laptop battery life is generally only concerned with damage or natural life artificially. Basically, the battery life are fixed, 300-600 times the charge and discharge times, generally available for 2 years.
Myth: When power is connected, the battery can pull or not to pull
To pull or not to pull on the actual usage: DC power supply connected without removing the battery and the battery does no harm, because the battery is fully charged after will no longer accept any charge injection, power steering all direct laptop power supply system. But when the laptop high speed, internal overheating is best to remove the battery, otherwise it is harmful.
How to properly charge the battery for laptop
Should try to avoid situations such as the battery is depleted rechargeable light, because this will give the battery a lot of pressure resulting in damage. More feasible approach is to charge the battery when the remaining 20-30%. Indeed laptop lithium batteries in the "light / charge" of the number of terms is limited, all used to recharge will shorten battery life. Meanwhile, the battery should be charged in a dry place, Also note that the heat problem, which is the enemy of battery.
Tip: Use with laptop battery cell phone battery is not the same, many people may be based on their own experience to determine the cell phone battery, laptop batteries that recharge should all run out, this idea is wrong.
Long-term use of laptop batteries, how to save
Laptop batteries are stored or put photovoltaic electricity should be filled to save? Put the long-term preservation photoelectric batteries will lose their activity and even lead to the control circuit protection self-locking and can not re-use, full power will bring long-term preservation security risks, the best method is to save electricity use to about 40% and then save a cool, dry place, about 20 degrees Celsius is the ideal storage temperature. Of course, the best month to take the battery out once, both to ensure the battery a good state of preservation, and not let the battery completely drain and damage the battery.
Several measures to extend the battery life of laptop
1> lower the screen brightness: You can use fn + down / up key combination to quickly adjust brightness (fn + which key specific need to see their own laptop).
2> The use of standby, sleep and other functions: When long time without a computer, allowing laptop standby or hibernate, saving electricity and prolong the life of the computer.
3> Open cpu speedstep feature can greatly extend the battery operating time: cpu's speedstep feature in the bios is enabled by default when using batteries, cpu will automatically down-use, in order to save energy. If not open, you can boot into the BIOS by pressing F2 find Performance, Speedstep Enable set to Enabled.
4> When using the battery, try to turn off the wireless, Bluetooth and infrared port. Meanwhile removed without the use of peripherals and to avoid large-enabled 3D programs, games, etc., in order to reduce unnecessary battery consumption.

Full Summary: a brief introduction by the author, I believe many of my friends already know about battery calibration, the author here to remind you that although calibrate the battery will play a role, but we still have to work in use, good battery maintenance job. In addition, the method how to buy a new battery authentication also tell you the battery. Finally, I hope everyone has a correct understanding of the battery, do not you think it does not matter aside, and so true to use when it is in a hurry, so we have a good saving habits and methods is crucial.

ThinkPad laptop models naming rules

ThinkPad laptops new generation of products in accordance with market positioning can be divided into: ThinkPad R Series models cost category, ThinkPad SL Series full-function type growth models, ThinkPad X Series Ultimate lightweight class models (including Tablet PC) and ThinkPad T series the perfect balance of performance and portability class models.

ThinkPad laptop series of models the difference at a glance
     ThinkPad laptop series of models in the core technology, display and graphics, safety and protection, multimedia capabilities, built-in solutions and tools, connectivity, and other aspects are different. We can be queried via the above form.

ThinkPad R400
     ThinkPad laptop models in the new generation of the first letter indicating that it belongs to which a series of models (for details please refer to the above description); "the letter behind the first digit" can be seen in the screen size of this machine (5 representatives of 15 inches, 14 inches four representatives, three representatives of 13 inches, two representatives of 12 inches); "the letter behind the second and third digits" can see that this machine is the first generations of products (the larger the number, says this product is the new); "last letter" (some products do not have a model of the last letter) has been known as "The suffix", you can see that this product is part of a special design models (P expressed with professional-grade graphics cards, S represents equipped with ultra-low voltage processor, T represents the use of a flat design).

ThinkPad SL400
     ThinkPad laptops also feature a new generation of vice models, mainly used to identify the location of this product shipped. Among them, the first four digits are the model code (different code combinations represent different body design, such as: material, weight, interfaces, etc.); behind the two figures is the configuration code (different code combinations represent different configuration combinations) ; last letter is shipping area code (C on behalf of the Chinese mainland, H representatives of China Taiwan, Hong Kong China, V, A representative of Singapore, U representing the United States, J representative of Japan). That is, for the Chinese mainland market, with "H, V, A, U, J" and other letters at the end of the product are all parallel.

ThinkPad X300
     Illustration: ThinkPad X200t-74697BC. Where, "ThinkPad" brand name; "X" represents that this product is the ultimate lightweight class models; "2" indicates that this product is a 12-inch screen design; "00" indicates that this product is part of the series of first-generation products ; "t" represents that this product is flat-series models (for details refer to the following related articles); "dash behind 7469," is this product model code; "dash behind 7B" is this product configuration code; "the last letter C" indicates that this product is shipped locations in mainland China.
     Finally, we can conclude: ThinkPad X200t-74697BC is a 12-inch flat-panel screen design laptop. It is the series of the first generation of products, shipping locations in mainland China. That is, for the Chinese mainland market, which is a licensed.

ThinkPad X200
     In addition, ThinkPad laptop models named vice there is a special case. If the secondary model last three letters "CTO", it means that this product is a user via Configure-To-Order system tailored system.
     Recently, ThinkPad laptops appear at the end of a number of digital models, such as: ThinkPad X200-7454HT1. These products did not use the above mentioned model naming, because they belong to large clients. ThinkPad X200-7454HT1 original model name should be ThinkPad X200-7454CTO, then there will be a former model following text notes --CTO ID is "HT1".

ThinkPad T400
     Above is the ThinkPad laptop product model naming convention. Model code and configuration code, we would not pondering, basically no one will take the time to remember it. For us the most useful is the model can be seen through its screen size and shipping locations. Especially shipping locations, we can judge by the last letter of this product is licensed, or parallel.

Lenovo laptop models naming rules

Currently, Lenovo laptop market can be divided into three series - Lenovo 3000 series (with a low price as a selling point, the main personal consumer market), Lenovo IdeaPad series (with excellent audio and video entertainment features as a selling point, the main personal consumption type of market) and Lenovo Zhaoyang series (with excellent body design as a selling point, the main business office market). Below, an example for everyone to introduce Lenovo laptop models naming rules.

Lenovo 3000 G530
Lenovo 3000 Series include: G530 (premium entertainment), G430 (value classic) and G230 (premium portable). Which, G530 also divided G530M and G530A; G430 is also divided into G430L, G430M and G430A; G230 is only one G230G.
Which, "G" represents this machine are inexpensive premium products; "behind the G first digit" can be seen in the screen size of this machine (5 represents 15 inches, 14 inches four representatives, two representatives of 12 inches); "behind the G second and third digits" can see that this machine is the first generations of products (the larger the number the more new products, says this); "the last letter," can be seen What type of product is equipped with a processor or graphics card (L representative Celeron processor, M for the Pentium processor, A representative is equipped with a separate graphics card, G representative is not equipped with discrete graphics). Yes, if the last letter is "A or G", you can not see that this product is equipped with what type of processor (probably Celeron, Pentium may be, it may be Core), only that it is equipped with / not equipped with discrete graphics.
Illustrate one: Lenovo 3000 G530M. Which, "G", said this product is inexpensive premium products; "5" indicates that this product uses a 15 inches screen design; "30" indicates that all of these two figures it no less than 30 new products, All these two figures more than 30 new products than it is; "M" that this product is equipped with a Pentium processor, but is not equipped with discrete graphics.
Illustration 2: Lenovo 3000 G430A. Which, "G", said this product is inexpensive premium products; "4" indicates that this product with 14-inch screen design; "30" indicates that all of these two figures it no less than 30 new products, All these two figures more than 30 new products than it is; "A" that this product is equipped with a separate graphics card, but I do not know with what type of processor.

Lenovo 3000 G430
In general, we will G530M, G530A, G430L, G430M, G430A and G230G called the primary model. In the back of the main models have a small horizontal line, there is a group in the dash behind the letters, we called this group of letters vice models. The first letter of the Deputy model can be seen what type of processor (P is PXXXX series processors, T is TXXX series processors); the second and third letters are the abbreviation of the first digit of the processor model (TH is 3, FO is 4, FI is 5, SI is 6, SE is 7, EI is 8).
For example: Lenovo G530A-PSE. Which, "P" that this product is equipped with a PXXXX series processors (that is, it definitely does not belong to the Celeron and Pentium series, can only belong to Core series), "SE" is the English word "Seven" (Arabic numerals 7 ) acronym, said that this product is P7XXX series processors.

Lenovo 3000 G230
In addition, the Lenovo 3000 series laptops there is a special case - plus a small parenthesis behind the models, brackets write "L" letters. For example: Lenovo 3000 G530A-TTH had a product with a T3200 processor, later upgraded to T3400 processor. Thus, the market appeared two configurations of the Lenovo 3000 G530A-TTH. To make a difference, Lenovo in the model behind the old configuration before the upgrade version added a "(L)". Products That is, all models with "(L)", all belong to the old configuration version before upgrading.
For example: Lenovo 3000 G530A-TTH (L). Among them, the "Legend" is a brand name; "3000" is a family name; "G" represents that this product is inexpensive premium products; "5" indicates that this product uses a 15 inches screen design; "30" stands for all this two digital products no less than 30 of its new, all these two figures more than 30 new products than it is; "A" that this product is equipped with a separate graphics card, but I do not know what kind of deal with device; "dash behind T" that this product is equipped with a TXXXX series processors (that is, it could be a Celeron, Pentium and Core family of processors); "dash behind TH" that this product is equipped is T3XXX series processors (T3XXX series processors are the Pentium processor); "(L)" that this product is the old version of the model before upgrading.
Finally, we can conclude: Lenovo 3000 G530A-TTH (L) is a 15-inch screen design, equipped with a T3XXX series Pentium dual-core processor and discrete graphics laptops. Moreover, the association has been upgraded to the models, this product is no old version before upgrading, configuration is relatively low, so the price should be cheaper.
Above, is the Lenovo 3000 series laptop models naming rules. Lenovo IdeaPad Series and Lenovo Zhaoyang series laptop models naming its basically the same.