1, poor cooling
monitor, power supply and CPU in the work of heat is very large, so it is very important to maintain its good ventilation, if the monitor overheating will lead to color, image distortion and even shorten the life of the monitor. If the monitor is overheated, it will cause color and image distortion and even shorten the monitor's lifespan. Working too long will also cause the power supply or the monitor to dissipate heat and cause the computer to crash. the CPU's heat dissipation is an important issue that relates to the stability of the computer's operation, and also is the "hardest-hit" area of the cooling faults, so it is important to ensure that it has a good heat dissipation effect.
2, move improper
In the computer moving process by a lot of vibration often make the machine internal device loose, which leads to poor contact, causing the computer to crash, so the computer should be moved to avoid violent vibration. Usually, when you find a computer crash, you can also check whether the board is loose, and you can pull it out and plug it in again.
3, dust killer
Too much dust accumulates in the machine can also cause failure. For the circuit board, dust is like a time bomb. In addition, such as floppy drive magnetic head or optical drive laser head contaminated with too much dust, will lead to read and write errors, serious will also cause the computer to crash. Therefore, the computer room dust is often must pay attention to.
4, equipment mismatch
Such as the motherboard frequency and CPU frequency mismatch, the old motherboard overclocking will be too high external frequency, may not be able to ensure the stability of the operation, thus leading to frequent crash. This is mainly due to the compatibility of the various parts of the machine did not get the match, therefore, in the purchase of compatible machines, you can ask the more insiders to help choose parts.
5, software and hardware are not compatible
Three-dimensional software and some special software, in some microcomputers sometimes can not start or even install, which may have software and hardware compatibility issues.
6, memory stick failure
Mainly due to loose memory stick, soldering or memory chip quality itself. The memory stick contact failure should be ruled out according to the specific circumstances, such as re-plugging. If there is a problem with the quality of the memory stick, you need to replace the memory stick to solve the problem.
7, hard disk failure
Mainly hard disk aging or due to improper use of bad channels, bad sectors. So that the machine is very easy to crash when running. Hard disk failure must use special tools and software and maintenance personnel to overhaul the processing, such as serious damage can only replace the hard disk. In addition, for motherboards that do not support UDMA66/100, attention should be paid to the setting of the hard disk operation mode in CMOS.
8, CPU overclocking
As the CPU overclocking increases the operating frequency of the CPU, at the same time, may also make its performance become unstable. The reason for this is that the CPU's speed of accessing data in memory is faster than the speed of exchanging data between the memory and the hard disk, and overclocking makes this contradiction even more prominent, exacerbating the situation of not being able to find the data you need in the memory or virtual memory, which will result in an "abnormal error". The solution is relatively simple, and is to return the CPU to its normal frequency.
9, hardware resource conflicts
This is due to the sound card or graphics card settings are in conflict, causing abnormal errors. In addition, other device interruptions, DMA, or port conflicts may cause a few drivers to generate abnormalities, resulting in a crash. The solution is to start in "Safe Mode" and make appropriate adjustments in "Control Panel" → "System" → "Device Management". The solution is to start in "Safe Mode" and make appropriate adjustments in "Control Panel" → "System" → "Device Management". For abnormal errors in the driver, you can modify the registry. Select "Run", type "REGEDIT", enter the registry editor, through the menu under the "Find" function, find and delete all the "primary key" related to the driver prefix string. and delete all the "primary keys" and "keys" associated with the driver prefix string.
10, the memory capacity is not enough
The larger the memory capacity, the better, at least greater than the hard disk capacity of 0.5% ~ 1%. If there is a problem in this regard, it should be replaced with a memory stick with the largest possible capacity. Or add a new memory stick to the existing one.
11, low-quality parts
A few unscrupulous businessmen in the assembly of compatible machines to customers, the use of low-quality motherboards, memory, and some even sell counterfeit motherboards and old CPU, memory, which will make the machine in operation is very unstable, crash is inevitable. Therefore, the user should have this aspect of wariness when purchasing a machine, you can ask more familiar friends to help select, and can use some of the newer tools and software to test the computer, a long time continuously test machine (such as 72 hours), as well as to strive for as long as possible warranty time, etc..
Two, software failure
1, virus infection
Virus is a computer operation of the big trouble, almost everyone evil. Virus can make the computer work sharply reduced efficiency, resulting in frequent crash, data loss, system crash, and even damage to the motherboard, hard disk, CPU and so on. Therefore, in the discovery of the virus we need to use antivirus software such as KV3000, Rising Star and other good antivirus software to the computer to carry out a comprehensive investigation of the virus, antivirus, and to do in a timely manner to upgrade the antivirus software.
2, CMOS settings improper
The failure phenomenon is very common, such as hard disk parameter settings, mode settings, memory parameters are set improperly, will lead to computer can not start. If the memory without ECC function is set to have ECC function, this will cause the computer to crash due to memory error.
3, system files deleted by mistake
As Windows startup requires Command, com, Io, sys, Msdos, sys and other files, if these files are damaged or deleted by mistake, even if the CMOS in a variety of hardware settings correctly in the case will not help. The solution: Start the computer with a boot disk of the same version of the operating system, then type "SYSC:" to retransmit the system files.
4, the initialization file is damaged
As Windows startup needs to read System, ini, Win, ini and registry files, if there is a Config, sys, Autoexec, bat files, these two files will also be read. As long as there are error messages in these files there may be a crash, especially System, ini, Win, ini, User, dat, System, dat these four files are particularly important. If we delete an application software, the software's anti-installation program will record it once installed files and ready to delete them one by one, it is easy to be deleted dynamic link library file will also be used by other software to the situation, if the missing link library file is a more important core link file, then the system will crash, or even crash. At this point, we can use tools such as "super rabbit" on the useless, DLL files to delete, so as to avoid accidental deletion.
6, hard disk space is too little or too much debris
Due to some applications need to run a large amount of memory and hard disk space, if the hard disk space is too little, when these applications need a lot of memory to run on the machine memory is not much, it is necessary to use the virtual memory, and the virtual memory is provided by the hard disk, so the hard disk should have enough space to meet the needs of the virtual memory. The virtual memory is provided by the hard disk, so the hard disk should have enough space left to meet the demand for virtual memory. Therefore, when we equip the computer, we should configure a larger hard disk, in addition, we should also develop a good habit of regularly organizing the hard disk and removing junk files from the hard disk. This will not only prevent the hard disk from crashing due to insufficient remaining space or too much debris, but will also increase the speed of normal operation.
7, BIOS upgrade failure
Operators should back up the BIOS in case of an accident, but if the computer system needs to upgrade the BIOS, then it is best to make sure that you use the BIOS version before upgrading to match your PC. If the BIOS is not upgraded correctly or if there is an unexpected power failure during the upgrade process, then the computer system may not boot. So make sure you know the BIOS model number before upgrading the BIOS. If you are using a BIOS upgrade tool that can back up the current BIOS, you should make a copy of the previous BIOS on disk. Also see if the system supports BIOS recovery and know how to do it.
8, improper software upgrade
Most people may think that the software upgrade is not a problem, in fact, in the upgrade process will be some of the components of the **** enjoy the upgrade, but when other programs may not support the upgraded components, there will be a variety of problems lead to crash. In this case, you can use the same software as you use in your PC, but you can also use the same software as you use in your PC, so you can use the same software as you use in your PC, so you can use the same software as you use in your PC. Therefore, the beta software usually has some bugs or is not stable enough in some aspects, the beta software can not be regarded as fully mature software. Therefore, when we are not very knowledgeable about computers, it is best to use the beta version of the software less, so as to avoid the use of data loss of program errors, crash or system can not start and other failures, to bring unnecessary trouble.
10, illegal uninstallation of software
As computers now run a lot of software, people always like to often download, install and uninstall software, which is not good. It's not a good idea to delete the directory where the software is installed. If you delete it directly, there will be a lot of garbage in the registry and in the Windows directory, and over time, the system will become unstable and cause crashes. Therefore, do not download and install software that you do not necessarily need.
11, the use of pirated software
Nowadays, pirated software is very much, almost all the software has been pirated, because these pirated software may hide the virus, once executed, will automatically modify your system, so that the system in the operation of the crash. However, I'm afraid it's not realistic to say that we should all use genuine software, so we can only try to use as little pirated software as possible, especially the software that we don't use often and some software that is not very expensive, so we don't have to use pirated software.
12, application software defects
This is a common situation, such as in Win 98 to run those in DOS or Windows 3, 1 in the 16-bit applications run well. Win 98 is 32-bit, although it claims to be compatible, but there are many places are unable to coordinate with the 16-bit applications. There are also cases where a peripheral driver that works fine under Win 95 may have problems when the operating system is upgraded, causing the system to crash or not boot properly. Encountered this situation should find a new version of the peripheral driver. 13, too many programs to start
Starting too many programs will make the system consume all the resources, and so that individual programs need to find the data in the memory or virtual memory, there will be anomalous errors, resulting in a crash. Therefore, it is recommended to start fewer programs.
14. Illegal operation
Illegally opening or releasing the program in question with an illegal format or parameter can also cause the computer to crash. Please note that it is important to keep in mind the correct format and related parameters and not to open and release unfamiliar programs at will.
15, abnormal shutdown of the computer
Today's computers are almost always equipped with Wordows system, so we do not directly use the power button in the chassis when shutting down, otherwise it will result in damage to or loss of the system files, causing automatic startup or running crash. For Windows98/2000/NT and other systems, this is very important, and in serious cases, it will cause the system to crash. Therefore, the computer shutdown, unless the computer is dead and can not be programmed to shut down, usually have to use the computer on the "shut down the system" button, to shut down the normal.
16, memory conflict
Sometimes the computer is running a variety of software is normal, but will suddenly and inexplicably crash, but restart after running these applications and very normal. This is in fact a fake dead phenomenon. The reason is mostly due to Win98's memory resource conflicts. As you know, the application software is running in memory, and close the application software to free up memory space. But some applications due to the design of the reason, even after the closure of the memory can not be completely released, when the next software needs to use this piece of memory address, there will be a conflict.