Causes and countermeasures of unexpected computer restart
Usually, we will encounter various failures in the process of using computers, and unexpected machine restart is one of them. What is an unexpected restart? The so-called unexpected restart is a computer restart phenomenon that occurs because of the operator's own will. There are many factors that cause this failure, such as power supply and resource conflict ... Based on the analysis and research on the occurrence and solutions of many such failures, the author found some solutions to the problems and dedicated these experiences one by one, hoping to help everyone solve such failures.
unexpected restart caused by hardware
hardware is the foundation or core of computer operation, and its stability plays an important role in whether the software can work normally. I think the restart phenomenon caused by hardware is the most. Don't think that hardware is very complicated. In fact, there are many rules in it. Under normal circumstances, the unexpected restart of the machine caused by hardware has the following characteristics: the software or replacement and upgrade can not be solved, which is joint and the failure occurs in the same way. When looking for hardware faults, we must first eliminate hardware setting errors and setting joint errors. Only in this way can we find the hardware fault correctly.
in front, I have briefly mentioned the problem of conflict, which is quite common not only in software, but also in hardware.
1. Unexpected restart caused by power supply (under-voltage, overload and fluctuation)
Computer components are highly integrated precision components. When current flows in the hardware, the quality of the current is very important. Under-voltage, overload and fluctuation will cause a crash or restart, and even cause direct damage to the hardware.
reason: there are many reasons for the unexpected restart caused by power supply, such as the voltage instability of the main power grid, the power failure of the chassis, the damage of motherboard components and so on. Most of the reasons are beyond the upper limit of the range that the hardware can bear, which is generally determined by the quality, damage, operating environment and combination quality of the board. When using computers, we should be able to find the balance point of our own computers through long-term use, maintenance and repair, and each computer will have its own suitable working environment. Only by mastering the situation of our own computers (including software) can we lay a good foundation for the normal operation of computers.
countermeasures: ① simply observe the situation of local power grid through electric lights, or install anti-mains surge devices.
② try to reduce the load of computer power socket and chassis power supply.
③ Avoid the influence of other electrical appliances on the computer from the socket of the same power supply.
④ make clear the power consumption of your computer and equip it with standard regular or famous brand power supply.
⑤ Don't blindly debug in case of frequent unexpected restart. You'd better consult computer experts to find out the cause of the failure, so as not to find the wrong reason but damage the hardware.
2. Unexpected restart caused by vibration
Reason: At present, there are more and more interfaces on the PC board, and poor contact due to loose interfaces is easy to cause failures, which will cause the above phenomenon when the computer vibrates. Vibration can generally be divided into two types: computer self-vibration and man-made vibration. Computer self-vibration is caused by some rotating accessories in the chassis, such as hard disk, fan, CD-ROM, etc. When they rotate, they may lead to loose interfaces, poor contact and unexpected computer restart failure. In addition, the CPU with adapter card is also prone to the phenomenon that the fan shakes the adapter card loose.
countermeasures: ① try to avoid the vibration of the chassis caused by human factors, and test the stability of plug-in connection when necessary.
② The placement position of the chassis should be stable, and the high-speed accessories inside the chassis must be fastened.
3. Unexpected restart caused by hardware quality
Reason: When it comes to computers, we can't help but talk about hardware quality. In fact, hardware quality is the key to stability and function realization. The size of the capacitor, the thickness of the PCB and the perfection of the monitoring process are all directly related to the overall performance of the computer. If there is something wrong with the quality of hardware, it is easy to cause abnormal startup of the machine. For example, the technical standards of some hardware are highly confidential, which leads to the incompatibility of such products produced by other developers, resulting in frequent failures. Let's talk about the stability of hardware. What is more important is the thermal stability (thermal sensitivity) and anti-interference ability of hardware. In fact, the restart phenomenon caused by overheating of some hardware is also quite common. Therefore, I remind you to read more authoritative hardware evaluation reports, which is helpful for you to capture hardware information in time, so as to understand the phenomenon and solutions of such failures.
countermeasures: ① reduce the interference sources of strong static electricity and do a good job of anti-static.
② Implement effective cooling measures for hardware and control the temperature within a proper range.
Unexpected restart caused by software
Unexpected restart when starting a game, unexpected restart when scanning hardware, etc. are all restart phenomena caused by software. Therefore, let's take a closer look at the computer restart failure caused by this kind of software with some specific examples.
1. Unexpected restart caused by DirectX
DirectX is a practical program to enhance computer multimedia functions, and its diagnosis and monitoring of hardware will help you solve some faults. When DirectX is started, it will scan and confirm the function of the hardware. When the program can't be started, or the hardware can't pass the function test, the computer will restart unexpectedly.
reason: it may be that the effective registration function of a certain hardware device cannot be realized, or the device is damaged, or the device conflicts or the driver is incomplete. In addition, the file damage of DirectX will also cause the restart phenomenon.
countermeasures: ① re-install or upgrade the hardware driver.
② equipment is not monitored by DirectX, and DirectX is upgraded or downgraded as appropriate.
③ replace the damaged hardware.
④ shielding bad functions (such as analog hardware functions).
⑤ when upgrading hardware drivers, the original hardware devices must be completely deleted to prevent the old drivers from still occupying I/O, which will lead to I/O conflicts.
2. Unexpected restart caused by imperfect system
Unexpected restart failure is easy to occur when multitasking, usually caused by software stopping responding, or caused by lack of system resources (three heap resources), and so on. For example, when a user tries to shut down a software that stops responding (it takes a long time) (press the "Ctrl+Alt+ Del" key first, and then select the program to shut down), the machine will restart for no reason.
reason: there are more chances for the computer to restart unexpectedly in Windows95/98. When running some software or saving files, this fault will occur once there is a difficult operation. In fact, this is a self-protective error of the system. It usually appears when a specific software is started in a specific software environment. Windows95/98 itself has many causes, but it does not rule out some Trojans and other programs.
countermeasures: ① delete or upgrade the software that is prone to failure.
② upgrade or replace the system itself.
③ install system-aided management software, such as memory management, to reduce the waste of resources.
④ reduce the number of open windows.
⑤ If there is a problem with the system, generally, virus scanning is performed first.
3. Unexpected restart caused by virus
Reason: The power of virus may be seen by many people, and the means and degree of destruction are varied, ranging from inconvenience to irreparable economic loss. The unexpected restart failure we talked about today sometimes has its "credit". The most common ways of virus damage are data destruction and data flow overload. Serious data destruction will directly lead to system paralysis or software running errors, which will easily lead to unexpected computer restart in an unstable environment. The overload of data flow will lead to the slow response speed of the system and the great waste of system resources, and finally the system will restart because it can't bear the wrong data flow.
countermeasures: ① strengthen anti-virus management and pay attention to timely information acquisition and software upgrade.
② Don't use hacker software to prevent hacker programs from stealing your computer.
③ Be clear and clean about the source of your own program to prevent virus infection.
Unexpected restart caused by other reasons
1. Unexpected restart caused by system bottleneck
Cause: There are many bottlenecks in our computers. The so-called bottleneck effect refers to a series of problems caused by data transmission between interfaces with different operating frequencies, such as system efficiency reduction, frequent system errors, and inability to realize functions. We all hope that the computer will run very fast, but the bottleneck prevents the computer from playing its due level.
countermeasures: ① try to avoid functional waste when funds permit.
② Be conservative in setting the system enhancement functions.
2. Unexpected restart caused by dust
Dust is one of the important "killers" of computers. Because the computer will produce electrostatic magnetic field, and static electricity is the "culprit" of dust adsorption. The increase of dust will bring a series of problems: firstly, it will affect the heat dissipation, which goes without saying in detail, and everyone understands. Secondly, a large amount of dust will absorb moisture in the air, making it conductive (thus causing a short circuit), which will cause the machine to restart, or directly burn electrical components, causing losses to users. Therefore, it is very necessary to remove dust regularly!
3. Unexpected restart of the computer caused by poor heat dissipation
Heat dissipation is one of the important means for maintenance. Good heat dissipation will keep the computer in good working condition for a long time, because many components in the computer need heat dissipation, and memory is the most sensitive and important part of data transmission. Excessive temperature will cause errors in data transmission, which will lead to unexpected restart. In fact, the direct cause of poor memory heat dissipation is poor convection inside and outside the chassis. I think it is not necessary to install memory heat sinks, but only to strengthen air convection. The simple method is to open the chassis cover.
the last thing I want to say is: you must make a complete computer maintenance plan, hardware and data maintenance plan, and maintain your "love machine" regularly.