Between the squares
Laptop application, maintenance, procurement Raiders
2004-08-24 14:02:59 Issue: 2004 June 2004 (CHIP)
Do you know which environments are not suitable for using laptops? Do you know how to maintain and maintain your laptop accessories? Do you know how to deal with problems in your daily use of batteries? Are you familiar with how to extend the life of the battery? Do you think about how to avoid being deceived by trailing when purchasing?
The laptop you use may be a few years ago, it may be the latest IBM T41, or you are a computer enthusiast who is about to join this family. It is hesitant to choose Sony X505 or IBM X40. Decisive, this is nothing, let us take a look at what is developing now and future laptops.
Volume weight: lighter and more portable
The biggest difference between laptops and desktop computers is that the laptop can be around with the zone, can move with your heart, whether it is an office or entertainment, the portability of the laptop is always people most concerned.
Most of the 12-inch ultra-thin laptops on the market are around 2 cm, with a weight of around 1.5kg (such as IBM ThinkPad X31, HP Compaq NC4000, etc.), a thinner 10-inch portable laptop is only 1kg. (Such as Sony SRX, etc.).
At present, the most representative portable models that have appeared on the market must be a pine Y2, which actually puts the resolution of 1400 × 1050, and the Combo optical drive to only 1.5kg, you must know Such weight is much larger than most 12-inch optical drive external models, and the T2 of Panasonic is only about 1kg, and the portability has also greatly improved as weight reduction.
Slim design is increasing, and widescreen is increasingly popular, bringing more recreational factors.
The 10-inch-level representative product Sony X505 limited edition only 1 cm left and right thickness and less than 0.8kg weight of increasing, the sub-laptop below 10 inch is slowly evolved into a PDA size computer. NVIDIA has just launched NFORCE 3 GO 120 is a chipset designed for small laptops and PDA. It not only has universal features such as USB2.0, but also provides a strong 3D computing ability, and playing 3D games on the handheld is not a distant dream. Processor: stronger performance and more efficient
At the same time, it is also very important to improve performance to accommodate various rapidly developed software requirements for hardware. Thanks to Moore's law, it can make future laptops have a more powerful performance while maintaining a thin volume and weight. The continuous development of processor packaging technology and arithmetic instructions will allow the performance power consumption of the laptop to reach an unprecedented height, and the large-capacity cache built by the processor will further increase the operation efficiency, while power consumption and heat dissipation are reduced. Helps the laptop more thin.
Now, the best example is to be an Intel's Pentium-M series processor. The Pentium-M processor has ultra-low voltage version 900MHz and 1GHz, low voltage version of 1.1GHz, 1.2GHz, and normal voltage version 1.3GHz to 1.7GHz, respectively, for ultra-small laptops, small laptops and ordinary laptops. Its most significant feature is that high performance low power, enhanced Speedstep and Mobile Voltage Positioning two technologies and large 1MB level 2 caching make it possible to ensure lower power consumption while providing powerful processing capabilities. The continuous use time of the laptop is very important for the user. It is a new generation of mobile processors designed for laptops. It brings a longer continuous use time and smaller heat, for these Cause, laptop using the Pentium-M processor can make it thinner, and performance is not comparable to the Pentium4-M processor poor laptop. In order to meet the needs of special users to high-performance laptops, the processor of the laptop will also develop in another direction, that is, based on performance-based high frequency processors. These processors are not only equivalent to the desktop processor, but also supports technologies to improve processor performance, such as mobile Pentium4 processors that support Hyper thread technology now. Hyper-throwing technology allows two threads to be executed simultaneously on a single processor, and the operating system that supports hyper-thread technology can "see" two virtual processors "see" by using other idle resources, execute in multi-tasking environments More tasks thus increasing work efficiency and ultimately achieving significant performance improvement. In the future, the 64-bit processor will also be applied to the laptop, such as the mobile version of the mobile version of the personal user, which is launched by AMD, its built-in Hyper Transport technology can greatly improve the product's work efficiency, such high performance processing The device will be widely applied to laptops that replace the desktop. Screen: Higher resolution
The screen of the laptop accounts for a pivotable position in the parts of the laptop, and its cost accounts for one-fifth of the entire laptop, and the power consumption of the display is directly related to the continuous use of the laptop. time. It is well known that the display of the display is the most payable of everyone, so various new technologies in order to improve the contrast and color reproduction of color.
In the future, the laptop display will have some of the following development. First, the resolution of the screen will get higher and higher. Now the standard 4: 3 screen is usually 1024 × 768 (XGA), 1400 × 1050 (SXGA ) and 1600 × 1200 (UXGA), etc., NEC has introduced a 15-inch screen of 2048 × 1536 QXGA resolution. Model (VA20S / AE), and gradually popular widescreen laptops, WXGA (1280 × 800), WXGA (1280 × 854), WSXGA (1600 × 1024), and WuxGA (1920 × 1200), etc. . The display of the next 14 inches will gradually eliminate the resolution of 1024 × 768 (XGA), and the resolution is 1400 × 1050 (SXGA ) and 1600 × 1200 (UXGA) screen, and the widescreen should have 1280 × 854 (wxga ) The above-over the resolution screen.
While increasing resolution, various patented technologies that improve the display of the display have also emerged, like IBM's FlexView, Sharp Ultrasharp ultrafice, Toshiba low temperature polysilicon, Samsung's WiseView, etc. These technologies are to improve the display effect of the screen, and for those game enthusiasts or graphic designers that require higher screens to achieve higher contrast and color reduction. Toshiba's low temperature polysilicon technology can also achieve the purpose of power saving, many new technologies will be applied to the future laptop screen. Some new materials such as OLED LCD displays are also applied to laptops, so that the laptop screen is more powerful, and the laptop is more lightweight. Function: Wireless big line has often heard someone complaining that why not upgrade the graphics card of the laptop? If I tell you, the future laptop can also make a variety of different configurations like a desktop, you must not believe it? In fact, such a product is now able to see, like HP Compaq X1000 / NX7000, it is very far from separating the graphics card module and motherboard, so that the graphics card for upgrading the laptop will become possible, there is also a similar design concept. Dell Inspiron 8600 and other models. However, because each manufacturer has not yet developed a unified standard, this modular design is now not very common.
Under the violent attack of Centrino, the wireless Internet has become fashionable. Most of the laptops on the market have wireless network cards. The current wireless network has developed to the speed of ordinary Ethernet, which can meet the requirements of ordinary consumers. At airports, cafes, hotels, you can see the figure of using laptop wireless Internet access, I believe that in the next year, with wireless popularity, such people will grow more and more. Battery: more surprising
From the recent development, the lithium-ion battery will also have a place in the laptop market. The emergence of Centri, allowing the mainstream 14-inch model to easily use this threshold for 6-hour battery, which has a revolutionary breakthrough than the past 2 to 3 hours. With the continuous development of the laptop, the volume will be smaller and smaller, the weight is getting lighter and lighter, the battery usage time will become longer. Service first: included value-added software
Another aspect of reflecting the value of laptop is a random software. In addition to IBM, in this regard, the Sony's VAIO series laptop is made in this area. Sony comes with a variety of easy multimedia software, such as SonICStage, Click to DVD, etc. These software removed the cumbersome operation steps, only convenient and fast, and truly enjoy the fun of technology. These softwares are a bridge that makes them understand and knows the laptop, making the laptop to the civilians.
It is also one of the development trends of the future laptop. Microsoft's latest Windows XP Media Center operating system turns a computer into a real home appliance, users can implement a wide variety of functions only. Then, the laptop penetration rate increased, the increase in production, the price of laptops will decline, and it has promoted the popularity of laptops. Such a benign cycle is now early, and it is believed that the laptop will enter thousands of households in the future, just like a telephone, the TV is as popular as the use and maintenance, as well as a household appliance.
Many users who use laptops are lacking on maintenance, even in certain aspects, there is still a certain misunderstanding. Do you know which environments are not suitable for using laptops? Do you know how to maintain your laptop during use? Do you know how to maintain the various accessories of your laptop?
Can laptops maintain a good working condition and people's use environments, have a big relationship with usage habits, and good use environments and habits can reduce the complexity of maintenance. Laptop usage environment
Not any environment is suitable for using laptops, laptops are not suitable for use in a very harsh natural environment, many other environments are not suitable. Vibrating laptops to vibrate, including falling, impact, tapping, and placing on the surface of larger vibration objects. These harsh environments are easily caused by laptop housings, hard drives, and screen damage, such as using laptops on vehicles, which often cause hard disk damage. Wet
The moist environment also has a lot of damage to the laptop, including splashing water and drinks on the laptop, and using laptops in a large humidity. At present, the civil laptop on the market does not have waterproof design, splashing to the liquid on the laptop flows into the motherboard, causing serious consequences such as the short circuit of the motherboard.
Similar situations there are laptops that will move to a warm environment in a low temperature environment (such as air conditioning room). At this time, condensation dew can cause the motherboard short circuit to be damaged. Therefore, it is best not to place the liquid next to the laptop, move the machine from a low temperature environment to a warm environment, first shut down and stand for about 20 minutes to make the consequences of the machine to avoid adverse consequences. dust
There is a large damage to the laptop, including dust and smoke, dust in dust and smoke, with the cooling air flow of the air, causing heat dissipation capacity, which will cause short circuit and even if dust is severe. Dead fan. The most easily ignored in actual use is that the desktop dust will be dissipated into a laptop, so please pay attention to the cleanliness of the desktop.
After the touch mouse is dirty, it will affect the feel.
Electromagnetic interference
Strong electromagnetic interference will also cause damage to the laptop. Although the shell of the laptop has a shielded coating, for those who are not perfect, some electromagnetic shielding is poor in places such as telecommunications room, strong power launcher and power plant equipment rooms. The laptop will craze or stagnate in these places, so that all the average users will not encounter such an environment. temperature
Overheated and overnight environments will also make laptops work abnormal or damaged. Overheated places generally refer to places above 40 ° C (such as outdoor in direct sunlight), these places will cause the heat dissipation of the laptop to be dissipated and dead; while the place where the laptop will cause laptop. The screen is displayed abnormal, or the hard disk read is not read. All in all, the most suitable for laptops is dry, air cleaning, no large vibration and strong electromagnetic interference, the temperature between 0 ° C ~ 30 ° C. New system optimization
Since the laptop still is still unable to rebarate with the desktop, it is necessary to optimize the system in order to save resources, effectively utilize the functionality of the laptop. At present, most of the machines have only 256MB of memory, but most of the Windows XP operating system is pre-installed, and 256MB memory is obviously only possible, and if you want to improve your application, it is not possible to optimize the system.
Let us first turn off "System Recovery", "Auto Update" and Remote Desktop Features, which can be found in the "System" setting of the control panel. system recovery
"System Recovery" is useful for people who often make mistakes, but it will make the hard disk is highly busy, you will find that the hard drive is always busy, because Windows XP is to record operations for future recovery. If you have confidence in yourself, don't use it because it can account for many resources. Automatic update
The "Automatic Update" function is very suitable for users who are hanging on the Internet on the Internet, but considering the actual situation, there is no reason to make this feature long. What's more, Microsoft's upgrade is not a new patch, we can update it every other time. It is recommended to change the default automatic upgrade to a confirmation of the upgrade to make your understanding of the system. Remote Desktop
As the name suggests, this feature allows others to access your desktop on another machine. Although this function has brought certain convenience, it also causes certain potential dangers. So, for those users who do not usually use this function, it is still turned off. The visual effect is configured in the best visual effect. If you think your system, especially the display is very slow, it is recommended that you change to "Best Performance" when displaying special effects. The way is displayed, so you can remove some of the displayed effects, saving some system resources. error report
The Error Report feature can automatically collect some error messages when Windows XP errors, and send it to Microsoft to improve their operating systems. This feature is not suitable for a user-dial-up user, it is recommended to turn off this feature to save resources. Other service services
If you don't use the printer, you can close the "Printer Spooler" service; if you don't have a regular task, you can close the "Task Scheduler" service; for most people, "Remote Registry" is also useless, or shut down.
Regarding the problem of system optimization, it is only simply introduced so much here. There are many articles about this aspect, and interested readers can study themselves.
Daily maintenance of laptops
Regarding the daily maintenance of laptops, our view is to protect and regularly do the necessary maintenance for laptops, but don't deprive it because of your love. The laptop is used to work and create value, but it is not used to pet. Let us take a look at some simple and easy maintenance measures, so that the love cart is long, and it is comfortable. Shell maintenance skills
All laptops should be the most worn on IBM's black "Pitch Skin" shell. Dirty, as long as you use a soft cloth that will not drop the fiber, you will wipe it. After drying, you will be clean, but not all laptops. The shell is so easy to serve.
Basically, there is no additional colored silver aluminum magnesium alloy housing is relatively easy to manage, dirty, use laptop-specific cleaner clean, but the above-mentioned shell should be careful, when cleaning, it may put These words are washed away.
For light colored plastic plastic shells (especially Sony laptop's silver plastic housing), the silver plastic surface of these housing is plated, not only easily dirty and easy to worn, once wear, will expose plastics under the plating The primary color, and it is impossible to repair, and there is no scar.
In addition to such a housing, there is no better way, the most effective method is not too much not to bump and use the inner bag close to the laptop bag, such as the VAIO-specific in Sony. The surface of this inner bag and laptop contact is a soft fluff that does not abrasive the surface of the laptop. How to deal with the contaminated case
First, you should use a brush that will not fill it off, then use a small amount of clean cotton to clean, but you can't clean it with a small amount of laptop cleaner. If you can't complete the dirt, you can draw a drawing. Wipe carefully with eraser, most of the stains can be removed. For housings that have been damaged or grinding the coating, it is recommended to find some small pieces of stickers to close, which prevents damage to the place where it will continue to expand, and be careful, because the stickers are not torn off, will cause damage to the area Expand.
Don't use a watch to use a laptop, with typing, watch will damage your wrist support, which will cause severe wear of the wrist tray. How to maintain the screen
The screen is most likely to be stained dust, just brush it with a dry brush, it is not necessary to clean the means, but if your screen is full of fingerprints and saliva (this is often facing the native of Jiangshan) There are other unknown stains that require some special cleaning means, such as dedicated LCD screen cleaners, which can make the screen look new. After the screen of the laptop, it can be treated with a dedicated liquid crystal cleaners.
Friends who can't buy cleaners can also use high-grade glasses to add a little clear water to clean. Although the effect is more than dedicated cleaner, and it is more laborious, but it is not good.
On the protection of the laptop screen, the most taboo is the pressure, top, scraping and incorrect screen opening mode, the LCD screen of the laptop consists of multilayer reflective board, filter plate and protective film, any of the injuries. The display of the screen is flawed. Need to pay attention to and display the related misunderstandings
Bad point
Speaking of LCDs can not be changed. The LCD is composed of thousands of points, each point is composed of RGB three primary colors, such as 1024 × 768 resolution screen consists of 1024 × 768 = 786432 points. There is a three primary color in the production process, there is one or a few because the problem of making the process cannot be discolored, which is reflected in the screen is a point that will never change color. If this point is red or blue, etc. is more obvious under the black bottom, we call it highlight; and if this point is black, it is more obvious in the white, we call it dark point. Highlights and dark spots are collectively called bad points.
Attributing the power of the Internet, causing a bad point to become a heart disease of consumers, has reached the point of "talking about color change", some consumers buy laptops, there is no bad point. In fact, the bad point is normal for the LCD screen, and each laptop manufacturer also stipulates the number of bad points of different resolution screens. Generally, 1024 × 768 screen is normal in 5 or less. After all, the most important thing is to create the value of the laptop, and the use of smart minds and a convenient tool to create wealth is the original intention of the progress of science and technology. Refresh rate
In a popular, the response speed is the time for each pixel of the LCD screen, changing the brightness, and then the entire process of extinguishing, this speed determines the clear level when displaying the dynamic content. LCD on your laptop is usually lower than the reasons for power consumption. According to the inaccurate measurement, the LCD screen response speed of the laptop is generally 30ms or more, and even has a 40 ms. That is to say that each pixel changes the color of up to 30 times in a second, in other words, the actual refresh rate of the LCD screen of the laptop does not exceed 30 Hz. 60 Hz displayed in Windows is only the frequency of the display chip output display signal is not the actual refresh frequency of the LCD screen. Therefore, the concept of refresh is not practical to use it on the laptop LCD screen, and the consumer should not be refreshed again. I confused. Color deep
Similar to color depth problems, you can find 32-bit true color options in your laptop. In fact, this does not mean that the LCD can display so much color. In fact, now in the laptop LCD screen can only display 24-bit colors, and 32-bit colors cannot be displayed. The LCD screen of the laptop is 32-bit color through the graphics jitter algorithm. In this way, there will be a problem. In fact, this algorithm is far less than the hardware 32 color effect, so we don't have to deliberately pursue the color depth of the LCD screen, 260,000 colors have been able to meet our general needs. But at the same time, this also represents the liquid crystal display and is not suitable for graphics designers that are extremely high in color. Keyboard maintenance skills
Protecting the keyboard is to pay attention to the dustproof and maintain good usage habits of the keyboard. The so-called dustproof is not to be used in dust, do not let the soot fall into the keyboard, do not eat things in front of the keyboard. Dust and impurities accelerate the conductive rubber in the corrosion keyboard, caught the keyboard's X bracket and oxidize the printed line of the keyboard. The keyboard is difficult to disassemble, so you can only clean up with a brush and vacuum cleaner after pollution, it is difficult to completely clean. Personal usage habits are also important, and the nails should often trim, do not use the dirty hand to use the keyboard, otherwise it will accelerate the wear of the keycap letter.
The keyboard will leave a shining trace on the keycap after using a period of time, commonly known as "oil", which is unavoidable, as long as the typing will remain on the hand. This situation is more obvious for those keyboards using black keycaps, relatively, white and translucent keycaps are not so obvious. This situation cannot be repaired, and only pay attention to cleans the hand when using everyday use.
It is strongly not recommended to play the game with a laptop keyboard, because in the game, beat the laptop keyboard, it is a louder move. The laptop keyboard is only replaced entirely after a button is damaged, and the price is expensive. Mouse maintenance skills
Laptop mouse and desktop mouse have no common, and the laptop has a variety of mouse forms, each has different maintenance methods. Ancient track ball mouse
This trackball mouse is like a "four-footed sky" version of the desktop machinery mouse, which is also used to drive the roller with a roller, and then use photodiode sensing to convert into electrical signals. Like the machinery mouse of the desktop, the trackball mouse of the laptop is also easy to enter, and you need to clean up regularly, or the feel will become slow.
It is recommended to use a clean and soft glasses to clean the photodiode and the dust on the light and the ball is clean. It is very simple. The most widely touch pad
The touchpad is the most widely used mouse in the laptop, which is easy to get started, simple and other features. At the same time, the touchpad is inductive human signal, so it is not easy to be contaminated, in general, the most is to clean the dust of the four-week corner of the touchpad.
The taboo of the touchpad is scratching. For the need for hand, there is a frosted coating on the surface of the touchpad. difference. Mouse boutique pointing rod
The pole is the highest species of precision in various laptop mice, but also a variety that requires the longest adaptation time, and many users who have just contacted the laptop do not know what they do.
The poker is the easiest to maintain the simplest mouse. It is basically only the problem of the mouse hat, it can be changed, and the cost will not exceed 50 yuan, half a year.
When you can't find an alternate mouse cap, you can try to clean it with a toothpaste and a toothbrush and you can get a better effect. A small problem with the pole is easy to drift (ie, it will automatically drift a small distance when not taking the mouse), which is unpackable, and it will not be too frequent. Laptop component maintenance
For most ordinary users, there is no skill to open the laptop to maintain parts, and this is likely to cause loss of warranty, so I only give you a good use of good usage habits to maintain the parts of laptops. How to maintain the optical drive
The speed of the laptop is generally lowered by the desktop, and the loss is also small. One or two years of use of frequent laptops is not problematic, desktop light drives to see specific usage.
The laptop drive structure is more accurate than the desktop drive, so the dust and stains are also more sensitive, and the non-reading disk that the laptop optical drive often occurs by dust and stains.
In order to avoid dust pollution, the laptop light can take out the tray to close the tray when it is not used, and care should not be used to use too bad discs.
When the optical drive of the laptop, the special bald cleaner should be used to clean. When there is no time, it can be cleaned with a little water and cotton swab, and the effect is also very good. The optical drive of the laptop has a guide rail for tray on both sides. If the force is too much, it will increase the wear between the rails and the tray, so that the gap is increased, the time will make the tray will be uncomfortable. When it is serious, it will not even pop up or unable to close.
As a method of prevention, it is best to use the tray of the optical drive when loading the disc, and then press the disc pressure so that the pressure of the guide rail is much smaller, and the wear is naturally alleviated. How to maintain a floppy drive
The maintenance of the floppy drive is basically the same, avoiding dust into and using inferior floppy disks, especially the floppy disk that is toned using a metal protective film, which is easy to damage the magnetic head when pulling out, and this damage is Not repairable. How to maintain hard drives
The hard disk of the laptop can be said to be one of the more delicate components. Since the heat dissipation conditions will be much different than the desktop, this will speed up the aging of the hard disk, plus the movement of the hard disk. Bump, the hard disk has always been the loss case in the laptop. Almost all laptop manufacturers will require users to move laptops in the boot state, which is for the purpose of protecting the hard drive.
The laptop hard drive is designed for portable purposes, which is much better than desktop hard drives in terms of seismic performance, but still cannot be compared with memory such as mechanical components. It is best not to move the laptop during the temporary read and write disk, and you must touch it when you move. Enjoy "mobile office" in vibration violent transportation is a stupid behavior of self-linked road.
The price of the laptop hard drive is usually much higher than the desktop hard drive of the same capacity, so protecting it is also equal to protecting your investment. In general, the appropriate hard disk stop time can be set in the power management, which saves power and reduces the loss of the hard disk.
Because of afraid of falling, laptop hard drives are also charged in operation. On some design bad laptops, the material is thin, the material is hard drive, and it will oppress the hard disk when compressing the wrist holder. After the housing of the hard disk is deformed, it will force the hard disk to make a harsh friction, thus Physical damage caused. If you have such a model, you have to avoid oppression of the wrist support and the casing, otherwise the dust and metal debris generated will soon make your hard disk. How to maintain the interface
PC slots are generally not closely closed by the side of the fuselage, so they often become dusty entrances. The PC card slot is generally two closed methods, one is to automatically enclose the cover of the spring, one is to close the empty card similar to the PC card, and the former does not require human intervention to automatically avoid dust intrusion. The latter is to keep the empty card and seal the empty PC card slot to avoid dust.
When choosing a PC card, try to use the model that can be fully saved in the slot to avoid dust.
For comparison of traditional serial ports, parallel ports, and VGA output ports, be sure to screw the fixed screw above the interface. Most of these interfaces cannot be hotly plugged. If there is no fixedness, it will cause contact failure, which may cause damage to the motherboard, especially the VGA output interface must be fixed, otherwise it may occur because the VGA interface is poor contactless and burns the motherboard graphics card Tragent.
For long-term interfaces, you can do the necessary rust-proof measures. The easiest way is to apply a little rust-proof wax, such as car wax, etc., it is a good rust inhibitor. Of course, the wax can only be applied to the metal portion of the interface surface, do not apply to the needle of the interface. If you can find a dedicated interface, it is of course better, but this kind of equipment is relatively rare.
From the day of the laptop, the argument about the battery has never stopped. Because of technical reasons, the capacity of the battery will be affected by many factors such as usage, usage habits and storage environments. What are the common problems encountered during use? How can I maximize the efficacy of the battery and extend the life of the battery? The battery maintenance of the laptop is the most concerned issue, perhaps the popular mobile phone will make people have a certain understanding of the battery, but it is clear that these awareness is not deep enough, and misunderstandings. Battery optimization and maintenance
The persistence of the laptop is a very important technical indicator. The performance of the battery is the most important factor affecting this indicator. Battery daily optimization
Many laptops users use only to stay in the primary stage, and do not know how to protect the battery and reasonably use the battery. When these users are too short to complain that the battery is too short or the battery life is not long, should it be carefully looking for a reason from your usual use? Of course, the causes of these two problems do not rule out the factors of battery own quality, but in most cases, it is a very common situation that people use improper use.
Several common misunderstandings are listed below, you should pay attention to when using batteries (not explained in the current most commonly used lithium-ion battery). For the first time, do you need to charge 12 hours before the first three times?
This is not necessary at all. Because the current laptop has a complete power management circuit and the charging management system, the control circuit will automatically switch to the open state when the battery reaches saturation, so even if the charge is long, it is no effect. In order to prevent memory effects, is it to charge the electricity?
It is not necessary to discharge the battery before charging, and it is harmful. Practical proves that the depth discharge of the battery will unlike the service life, it is recommended to charge when the battery is only 10% left. It is best not to charge when there is still more than 30% of the electricity, because the memory effect is indeed more or less. When inserting an alternating power, should you take the battery to prevent repeated charge?
It is recommended to be recommended. You may say that if the battery is naturally discharged, if there is a power access, it will reduce the battery life. The reason why "No" this answer is:
1. Laptop, lithium-ion batteries, generally with management chips and charging control chips, where there is a series of registers in the management chip, capacity, temperature, ID, charging state, and the number of discharge times, these values are in use. Gradually change. The main role of "Using a month after using a month after using a month" in the instructions of the laptop is to correct the values in these registers such that the charging control of the battery and the actual situation of the battery.
Now the power control circuit of the laptop is designed: it is when the battery is lowered to 90% (such as HP's most model) or 95% will be charged, and the time to achieve this capacity by natural discharge is 2 weeks. month. When battery idle does not have to perform full charge and discharge to maintain the battery, this time we should care about the battery instead of being charged again.
2. Even if the battery is again charged, the loss will not drop much less than the battery caused by long hours. 3. For most commercial users, the data is much more precious than the battery or even laptop itself. Suddenly, the power cut will not only have harm to the laptop, but the data that cannot be recovered is even more no longer. Do you need to charge the battery for a long time?
I saw it clearly.
Obviously, if you want to save the battery for a long time, try to put it in a dry low temperature environment and make the battery remaining at around 40%. Of course, it is best to take the battery once every month, which can ensure that the battery is well saved, and it is not allowed to make the battery to damage the battery. How to extend the laptop usage time when using it?
1. Reduce the screen brightness. The LCD screen can be larger, and the brightness can be effectively extended.
2. Open Speedstep and PowerPlay and so on save power. Now the laptop processor and display chip have the function of reducing operating frequency and voltage to extend the use time, and open the appropriate option to greatly extend the battery life. 3. Use the hard drive for the hard disk and the optical drive. Such as Nero Drivespeed, Powerbooster, etc. can reduce the speed of drive, hard disk, etc., can also effectively reduce the power consumption of the laptop.
4. Good use of standby, sleep and other functions. When you don't have a computer for a long time, you can let your laptop standby or sleep, so that it saves electricity and prolongs the service life of your computer.
In the power management settings, the detailed settings should be performed to extend the battery life.
Advanced maintenance of the battery
First, it is necessary to clarify, the so-called "lithium battery has no memory effect" is absolutely wrong. For lithium batteries, only memory benefits have no nickel-hydrogen batteries, and it is necessary to damage to the lithium battery. of.
In order to minimize the impact of the memory effect, the best way to use is of course, once it is fully charged, the so-called complete light is to turn off the power save options in the power management to use the machine hardware alarm or automatic Shutdown. Now there is a charge and discharge control / protection circuit in the lithium battery, as long as these circuits work normally, the laptop battery will not overcharge. In order to reduce frequent charging conditions due to the self-discharge of the battery, the charge and discharge control / protection circuit will now control the battery when the battery is lowered to a certain amplitude, rather charging, rather charging, so that it effectively reduces frequent frequent frequent The number of times the charge is charged. Different brands of laptops have different control points. For example, the partial model of IBM is 95% start charging. The partial model of HP is 92%, and Toshiba's partial model is 94%, but the purpose is the same.
Various manufacturers generally have their own power management programs to provide the longest battery life while maintaining the laptop while maintaining performance. These power management programs generally provide a large number of power management custom settings, and some also provide battery calibration capabilities, which can display actual power and charge and discharge of the battery, HP, Toshiba, IBM and Sony power management procedures are one of them. By. IBM's power management program can also automatically diagnose battery status and expressed in different colors, very advanced.
Here is to be added here, even if the battery is used, the battery will lose, because the lithium battery will be aging, just like a person maintenance, it will be old.
After the battery has certain aging, the percentage of battery power displayed in Windows will be inaccurate, and even some batteries are still new. The battery can also be used for half an hour or even 1 hour, or 30% of the electricity is not uncommon. This is because Windows's power management design cannot be compatible with all batteries, especially the battery of second-hand laptops, which is more likely to have such problems. This does not mean that there is a problem with the battery, it is best to use Battery Mark or PCMark2002 to determine the actual time (all power saving options when testing to avoid intervention of Windows battery management).
Different laptops are different, and some of Dell's notebook provides fast charging function, which can be filled into a certain degree of electricity in a short period of time, and IBM charging is slower (even if the fast charging function is opened). But for all laptops, shutdown charging is the fastest way, because all currents of the power adapter are charged when shutdown.
For users who use AC electricity, it is recommended to completely charge a battery monthly, so that the battery is kept in the best state, but do not completely charge and discharging operation, which will make battery life shortened. Characteristics of various power management procedures
The power management of the laptop can be described as soft and hard, and software often uses dedicated hardware use. Here we choose several brands with a special power management technology to introduce. IBM
In order to maximize energy, technology leading manufacturers even develop their own dedicated power management chips, the most typical example is IBM, equipped with IBM Power Management Device (IBM PM Device) in its Pentium III-level laptop A dedicated power management chip that requires a dedicated driver to be installed. Combined with PM uses the Battery Mixer, which is included in the IBM Configuration Utility, and a battery icon will appear on the right side of the task bar after installation. Click this icon to appear. In Battery Mixer, IBM provides many original setting topics, for different applications, users can customize new topics to suit special needs. Battery Mixer can even detect battery rechargeable capacity, charge and discharge, and automatically determine the battery status. If the battery is found, it will also be sent to IBM to repair.
Because of its own designed dedicated power management chip, IBM's Battery Mixer even can adjust the speed of the PCI bus power consumption and the optical drive, thereby reducing power consumption. It can be said that Battery Mixer is one of the best power management programs. Toshiba
Toshiba's power management program is called Power Saver Utility. This overbearing program will completely replace Windows built-in power management programs after installation.
Toshiba's Power Saver Utility is known as a custom function, and the options it provides can be different when the battery is lowered to varying degrees. Users can also customize their own sound, information or start a program when the power is lowered to a one-rate, and the overall design is very scientific. Sony
Sony's power management program PowerPanel is famous for the exquisite and humanized design, which needs to be used with Sony's Notebook Setup Device hardware chip. Users can customize different topics to fit their needs, there will be humanized prompt information when the battery is full and exhausted (this prompt can be customizable), and under the control of PowerPanel, Sony laptop is on the screen When switching brightness, you can jump like a product of other brands, but can gradient brightness.
If the machine is installed with a second battery, PowerPanel can make the user set one of the batteries first, and can switch between different batteries at any time.
PowerPanel can also read the information recorded in the battery, showing the current rechargeable capacity and charging of the battery, providing users with a lot of practical information. Special fast charging
Since the battery is so easy to exhaust, most laptops have only one battery, and some manufacturers have developed a fast charging function that allows users to replenish electricity with the fastest speed after the battery is exhausted. Some Dell laptops have Express Charge feature. For ordinary laptops without such a function, the best way is to shut down charge, which is generally shortened than the charging time of more than 30%.
All in all, the shape of the shape of laptop is to save power to power energy in order to ensure a certain performance. The power management technology is still necessary before the battery technology of the laptop does not have a major breakthrough, and the reasonable setting of power management allows the laptop to get longer usage.
As one of the most interesting products that computer enthusiasts, the laptop has always attracted many attention. But in the face of the total product of forest forest, everyone will inevitably produce an exactial feeling. Do you know what is the characteristics of mainstream laptops in each brand? Do you know what to pay attention to when you pick it up?
From the initial extremely cumbersome big head, to today's fashion and smart, the development speed of laptop can be described as a new month. What is the trend of today's laptop? Is it true to see if we can see it true? When the characteristics of each brand laptop, the manufacturers involved in the laptop market have emerged, and everyone wants to divide a piece in the laptop market in the fire. Although fierce competition has promoted the development of the laptop market, many "homogeneous" machines cannot have a deep impression at all, there is no doubt that "brand product characteristics" is the last word. Let's take a look at the product characteristics of each brand, let everyone have a preliminary impression and provide some reference for purchases.
IBM
I can't mention IBM, it created another myth in the laptop industry, from the first ThinkPad 700c to the now ThinkPad T41, a constant pure black appearance plus TrackPoint small red spots gave people a profound impression. In order to keep up with the pace of the times, it also maintains IBM black tradition. At present, IBM's new technology new model laptop is simplified to T (medium high-end business mainstream models), R (low-end business model), X (ultra-thin medium and high-end business models) and G (desktop alternative model) four major series to make faster reactions against different users. Sony
Sony's VAIO laptop has always been known as bright appearance, plus Sony's strong research and development strength, launched products from different styles such as ultra-thin to widescreen, with rich application functions, let VAIO are at the center of focus. At present, VAIO product main line can be divided into two blocks, a widescreen laptop represented by A19 and S18, under its beautiful screen, through strong configuration and shocking sound effects, reflecting VAIO outstanding entertainment features. Another piece is a ultra-thin notebook computer represented by the X505 and TR series, which proves Sony's R & D and design strength with a light and full-featured. HP
Since HP and Compass merge, HP has become the most complete manufacturer of laptop products, from high-end applications to low entry-level machines, and HP has a rich product model and corresponding. Currently hot-selling NC6000 and X1000 have become classic models in the history of laptop. HP's current model is still based on commercial use, even its widescreen laptop also emphasizes functionality rather than entertaining, this is different from other widescreen laptop manufacturers. Most importantly, the price of HP laptop often makes other manufacturers trouble, so HP has driven the overall price of the laptop market, which is undoubtedly a good thing for consumers. Samsung
Samsung is also a manufacturer of fashion road, and its laptop relys on beautiful shape and attractive price ratio is not small in China. Since Samsung enters the laptop industry is not long, there is no "historical legacy problem", so Samsung can let go of the boxing, respond quickly according to market information, launch the most suitable market, not only attract consumers, but also make the opponents . Toshiba
Toshiba has just reorganized the Department of Computer Division, but the Toshiba product line did not do too much adjustment, still biased business applications. In addition to M30, there is no new Ding. At the same time, Toshiba focuses on the medium and low-end business opportunities. From Toshiba's current new products A50, M2, etc., it can be seen that Toshiba gradually transfers the market strategy to configure prices as focus, and strive to influence their brand appeal. Under the reopening of the share of the swallowed, restore the dominant position in the past. Association
As a domestic laptop, Lenovo has always been the goal of the laptop manufacturers. In the face of huge stress, Lenovo also changed to the conservative product style, began to introduce fashion and entertainment elements, causing not small in the market. repercussions. Successful Tianyi S180 and the latest launched Rotary screen S620, let everyone add a lot of confidence in domestic laptops. Concise machine, a quick and effective test method can not only help you eliminate a lot of machines, will also let the profiteers know that you are a hipster and don't dare to hit your bad idea. After all, most business sell things in the customer. The service before the money is always the best.
Since most of buying machines in the store, it is difficult to achieve large professional software such as 3DMark2001se, Battery Mark and CPU test software. Generally speaking, check the appearance, check the BIOS, and check the hardware resource configuration, detect the optical drive and ports, and other respects can be selected according to their needs and the machine specific situation.
The basic principles of the test machine are outside to the outside, don't look at the specific hardware first. If the appearance is first there, the machine is naturally uns, so it can avoid repeating work, and the test steps summarized according to long-term practices are described. Check if the 4 serial numbers in the box, the body, the warranty card and the BIO are consistent
Although not every machine has such a serial number, the box and fuselage serial number will have every machine, and the BIOS serial number is also available, which generally appears in the BIOS screen. One page, as for the warranty card sequence number is not available for each manufacturer.
For parallel, because the host and the packaging are separated, many times the main unit will appear in the wrong box, we can use this to see if the machine is patron. If the serial number on the host and the serial number on the box are inconsistent, it will explain that it is parallel. At the time of purchase, you should pay attention to the serial number in the host and the BIOS must match. If there is no pair, then this machine is not changed to the motherboard is the serial number that is converted to the bottom of the final (usually this is seen in the renovation machine) . Conditioning packing sheet in the box
Regular vendors will have a box in the box, which lists the random accessories, all of which are all standard accessories, and sometimes manufacturers will temporarily send some things because of the principle of promotion or clearance, these Things are often not listed in the packing order, which requires an announcement of the manufacturer website and the distributor. View random manual and software, restore CD
This is very easy to be ignored steps, which may go straight to the host because everyone is in charge, but it is very easy to have a manner with the manual and random disc. Some vendors are attached to the two language versions of the operating system. Some manufacturers have a lot of random software. Sometimes there is a lot of light coupons and random discs. Coupons may not matter, less manual or warranty card Big.
Under normal circumstances, there are at least 3 light discs, the first two are the system recovery disc, and the latter is a random driver and application software. If the vendor has a large software (such as Office XP), a separate disc will give it to the serial number on the CD, otherwise the value of the genuine genuine software has become a waste.
The above disc is not applicable to the IBM laptop, ThinkPad has used hard disk recovery since 2000, all random software, drivers, and system recovery files are hidden in the hidden partition of hard drives. Generally, IBM's laptop does not A recovery disk will be attached, and the user who needs special needs should be purchased to IBM or redeem them with points. View the host's appearance
Don't drive, this step we need to look at the exterior of the host. First, touch the body, if it is still hot, then this host is estimated to come out from the "Traistor Studio". Then take care of the battery carefully to see if the cabinet on the back of the battery is fingerprint. Many machines make the cab case on the back of the battery, and the finger will leave a significant trace, it is difficult to clear. When the machine is checked, the battery should be removed to see if the battery surface has fingerprints and disassembled traces, and there is rust traces in the battery compartment.
Then take a closer look at whether the screws of the fuselage have been disassembled, the corners of the machine have the lack of bumpers, whether there is a trace of scratch on the bottom of the fuselage, the most obvious point is to look at the machine Several rubber pins have stains and wear, and the processor labels and operating system labels on the surface of the body should not have traces of curl and torn, if any, it will inevitably represent Used older machine.
Carefully check if the rubber foot of the machine has wear and stains. If there is, it should be replaced immediately.
In addition, look at whether the keyboard has been tapped, and the specific manifestation is bright, especially the black keycap is most obvious, but also pay attention to the alphabet key and space bar.
Then take a closer look at the fuselage and the tag that is launched on the box, don't laugh, this step is to test the project that must be seen when importing machines. Some manufacturers often sell some maintenance or returned machines, and sometimes there will be some engineering prototypes that cannot be sold into the market, and there will be markers on these machines.
Also, please check if the battery and the pop-up push push push is smooth. If the optical drive is the design that can be switched, you should try to switch. If the machine is equipped with the floppy drive of the optical drive, try insert, take a closer look at the interface Phenomenon of tamping and breaking needles, especially the NIC, MODEM interface, and serial ports and PC card interfaces, not only look at the side of the fuselage and the back of the machine, but also open the cover of the docking dock interface at the bottom of the machine to see if there is any Phenomenon of breaking needles. If it is a Tablet PC, it is also necessary to see if the electromagnetic stylus provides a hardware button such as a battery and a flip screen around the screen. Gently open the screen, I feel that there is a feeling of loosening.
Check if the switchable device such as the optical drive is normal, the interface has a hurt and breaking needle.
There are also some accessories that are easy to fall off, such as a PC cartridge baffle, port cover, etc. If it is missing, it is used by the machine. If there is no problem with the above fuselage, you can turn it on the inspection.
