★一、Software
◇1．Virus damage
※※ Since the computer soon after the computer, computer viruses also came into being. When the network has become the information artery of today's society, the spread of viruses is more convenient, so it also interferes with and destroys our normal work from time to time. Typical is a period of time ago on the global computer caused serious damage to the "Shockwave" virus, the onset of the system will also prompt the system will automatically start in 60 seconds. In fact, as early as the DOS era, there are a number of viruses can automatically reboot your computer.
※※※ For whether it is a virus damage, we can use the latest version of the antivirus software to kill the virus, usually will find the virus exists. Of course, there is also a possibility that when you surf the Internet was maliciously invaded your computer and placed a Trojan horse program. This allows the other party to control all the activities of your computer from a remote location, and of course, allows your computer to reboot. For some Trojans, it is not easy to remove and it is best to reinstall the operating system.
◇2. System file corruption
※※※ When system files are corrupted, such as KERNEL32.DLL under Win2K, fonts under Win98FONTS directory, and other basic system files are corrupted, the system will be unable to complete the initialization and forced to reboot at startup. You can do a test, the WIN98 directory font "FONTS" renamed try. When you turn on the computer again, our computer will start up again and again.
☆☆☆☆For this kind of failure, because you can't access the normal desktop, you can only override the installation or reinstall.
◇3. Timing software or scheduled task software plays a role
※※※ If you set up a restart or load certain work programs in the "Scheduled Tasks Bar", the computer will also start up again when the timed moment arrives. In this case, we can open the "Startup" item, check that there is no unfamiliar execution file or other timed work program, will be blocked and then turn on the computer to check. Of course, you can also type "Msconfig" into "Run" to select the startup items.
★Two, hardware
◇1. utility voltage instability
※※※ General home computer switching power supply operating voltage range of 170V-240V, when the utility voltage is lower than 170V, the computer will automatically restart or shut down. Because of the fluctuation of utility voltage we sometimes do not feel, so it will be mistaken that the computer somehow automatically restarted.
☆☆☆☆Resolution: For areas where the power supply is often unstable, we can purchase a UPS power supply or a 130-260V wide switching power supply to ensure that the computer works stably.
◇2. Poor quality of the plug or power socket, poor contact
※※※ Most of the power plugs on the market are not good quality, the internal contacts are manually welded, and often use acidic flux, which is likely to lead to oxidation of the solder joints in the future use of the cause of the circuit breakers or leakage of electricity between the fire wire and the zero wire. Because of manual welding, at the same time, because of the use of phosphorus brass sheet elasticity is poor, not long before it is easy to lose elasticity, resulting in poor contact with the host or the monitor power plug to produce a large contact resistance, a large number of heat in a long period of time will lead to a false connection, which will be manifested in the host to restart or the monitor flashes a black screen.
※※ There is a possibility that we use the wall socket at home, most of the wall socket installation is not the use of professionals, so the wiring inside the socket is very substandard, especially these sockets if we often use high-power electric heaters will easily lead to the internal heating oxidation of the false connection and the formation of intermittent power outages, resulting in the restart of the computer or monitor blinking phenomenon.
☆☆☆☆Resolution:
□ ① Do not try to save money and buy cheap power plugs, buy some brand-name power plugs, because its internal are automatically installed by the machine crimping, no manual welding.
□② For the problem of whether it is a false connection inside the wall socket, we can change the host to a wall socket and try to see if there is the same problem of automatic restart.
◇3. Insufficient power or poor performance of the computer's power supply
※※ This situation is also relatively common, especially when we add new equipment to our host, such as replacing a high-grade graphics card, adding a burner, and adding a hard disk, it is easy to appear. When the host is working at full speed, such as running large-scale 3D games, high-speed burning or ready to read CD-ROMs, just start, dual hard disk copy data, it may be due to the instantaneous power supply power is insufficient to cause the power supply protection and stop the output, but due to the fact that when the power supply stops the output, the load is reduced, which is when the power supply is started again. Because the recovery time after the protection is very short, so the performance to us is the host automatically reboot.
※※ There is also a situation, is the host switching power supply performance is poor, although the voltage is stable is also within the normal allowable range, but because of its harmonic content in the output power supply is too large, will also lead to frequent host crash or restart. In this case, we use a multimeter to test its voltage is normal, it is best to replace a good power supply to replace the exclusion.
☆☆☆☆☆Solution: Now replace the high-quality high-power computer power supply.
◇4. The mains plug of the host switching power supply is loose, poor contact and not plugged in tightly
※※This situation, most of which occurs in the DIY machine, the host power supply is equipped with a power cord that has not been certified by the 3C certification, and the power outlet does not match. When we shake the table or touch the host will appear host automatically reboot, generally accompanied by a slight electric fire "pop" sound.
☆☆☆☆Solution: Replace the power cord with a quality 3C certified power cord.
◇5. The motherboard's power ATX20 socket has a virtual weld, poor contact
※※ This kind of failure is not common, but it does exist, mainly in the host's normal operation, left and right to move the ATX20 pin plug, to see whether the host will automatically restart. Also check whether the reed inside the 20-pin power plug is oxidized, which can also easily lead to high contact resistance and poor contact, causing the host to crash or reboot. Sometimes it is also necessary to check the connecting wires at the end of the 20-pin plug, whether they are all secure.
☆☆☆☆Solution:
□①If the motherboard solder joints are soldered, directly use the soldering iron to make up the soldering can be. Note: When soldering the motherboard, hard disk, graphics card and other computer boards, be sure to soldering iron well grounded, or unplug the power supply while soldering.
□② If the problem is with the power supply, it is best to replace it with a good one.
◇6. CPU Problems
※※ When some of the CPU internal function circuits are damaged and the L2 cache is corrupted, the computer can start up, and even enter the normal desktop for normal operation, but it will reboot or crash when it carries out a special function, such as drawing a table, playing VCDs, and playing games.
☆☆☆☆Solution: Try to shield the second level cache (L2) or the first level cache (L1) in CMOS to see if the host can run normally; or directly replace the CPU with a good one to rule out. If you can run normally after shielding, you can still make do with it, although the speed is slower, but after all, save money.
◇7. Memory problems
※※※ memory stick if a chip is not completely damaged, it is likely to pass the self-test (after all, most of them are set up POST), but in the operation of the memory will be due to the heat of the memory and lead to the failure of the function of the accidental reboot. Most of the time the boot will alarm when the memory is corrupted, but there are still failures where the memory is corrupted without alarming or powering up. It is best to use the method of elimination to be able to quickly determine the site of failure.
◇8. Optical drive problems
※※※ If the optical drive internal damage, it will also lead to slow startup of the host or can not pass the self-test, but also may be in the process of work suddenly reboot. For the latter case if it occurs after we have replaced the optical drive, it is likely to be caused by the different power consumption of the optical drive. We need to understand is that although the optical drive of the ATPI interface is the same, but different manufacturers of its pin definition is not the same, if we have a problem with the hard disk cable, it may produce a brand of optical drive use no problem, but for other brands of optical drive can not work in the case, which requires attention.
◇9. Problems with the quality of the RESET key
※※※ If the RESET switch is damaged, the internal reed is always in the short position, the host can not power self-test. However, when the RESET switch elasticity is weakened or the button on the chassis is not easy to pop up when pressed, there will be a sudden reboot of the host because of occasional touching of the chassis during use or under normal use. Therefore, when the RESET switch can not be pressed freely, we must carefully check, it is best to replace the new RESET button switch or the chassis of the external buttons for oil lubrication processing.
※※ There is another situation, because the RESET switch leads in the chassis in the welding of the insulation layer stripped too much, coupled with the use of the process of many times in the removal of the box will cause the RESET switch line is too close to the collision caused by the host automatically reboot.
◇10. Access to the network card or parallel port, serial port, USB interface access to external devices automatically reboot
※※ This is generally due to external faults, such as the printer's parallel port is damaged, a pin shorted to ground, USB device damage shorted to ground, the network card is not a standard of workmanship, etc., when we use these devices, because of the sudden power short-circuit and cause the computer to reboot. When we use these devices, it will cause the computer to reboot because of a sudden power short circuit. ☆ old demon finishing ☆
★ Third, other reasons
◇1. poor heat dissipation or temperature measurement failure
※※ CPU heat dissipation is poor, often the problem is the CPU radiator fixed card off, the CPU radiator and the CPU contact with the foreign body between the radiator, the CPU fan after a long period of time after the radiator accumulates too much dust, these conditions will lead to CPU heat dissipation These conditions can cause the CPU to dissipate heat and build up too much temperature and reboot automatically.
※※※There is also the CPU below the temperature probe is damaged or P4CPU internal temperature measurement circuit is damaged, the motherboard BIOS has a BUG in a special condition of the temperature measurement is not allowed, these will cause the host in the process of automatic protective reboot.
※※※ The last thing is that the CPU protection temperature we set in CMOS is too low, which can also cause the host to restart automatically.
◇2. Fan speed failure
※※※ When the CPU fan speed circuit is damaged or the speed line intermittently broken, because the motherboard can not detect the fan speed will mistakenly think that the fan stops and automatically shut down or reboot, but we may see when we check the CPU fan rotation is normal, and the speed measurement is also normal.
◇3. Strong magnetic interference
※※ Do not underestimate the electromagnetic interference, many times our computer crash and reboot is also due to the interference caused by the interference both from the chassis inside the CPU fan, chassis fan, graphics fan, graphics card, motherboard, hard disk interference, but also from the outside of the power line, inverter air conditioning and even automotive and other large equipment interference. If we host the interference performance is poor or poor shielding, there will be a host of unexpected reboot or frequent crash phenomenon
Computer automatic reboot failure analysis
A, software
1. virus damage
The more typical is a period of time ago on the world's computers caused serious damage to the "Shockwave" virus, the onset of which is also the "Shockwave" virus. "virus, the attack will also prompt the system will automatically start in 60 seconds. In fact, as early as the DOS era, there are a number of viruses that can automatically reboot your computer.
For whether it is a virus damage, we can use the latest version of antivirus software to kill the virus, and usually will find the virus exists. Of course, there is also a possibility that when you surf the Internet by someone maliciously invaded your computer and placed a Trojan horse program. This allows the other party to control all the activities of your computer from a remote location, and of course, allows your computer to reboot. For some Trojans, it is not easy to remove them and it is better to reinstall the operating system.
2. System file corruption
When system files are corrupted, such as KERNEL32.DLL under Win2K, fonts under the Win98 FONTS directory, and other essential system files are corrupted, the system will not be able to complete the initialization and forced to reboot at startup. You can do a test, the WIN98 directory under the font "FONTS" renamed to try. When you turn on the computer again, our computer will start up again and again.
For this kind of failure, because you can not enter the normal desktop, you can only override the installation or reinstallation.
3. Timing software or scheduled task software plays a role
If you set up a restart or load certain work programs in the "Scheduled Tasks Bar", the computer will also start up again when the time comes. In this case, we can open the "Startup" item, check if there are any unfamiliar executable files or other timed programs, and block them before booting the computer. Of course, we can also type "Msconfig" directly into "Run" to select the startup items.
Two, hardware
1. utility voltage instability
General home computer switching power supply voltage range of 170V-240V, when the utility voltage is lower than 170V, the computer will automatically restart or shut down. Because of the fluctuation of utility voltage we sometimes do not feel, so it will be mistaken that the computer somehow automatically restarted.
Solution: For areas with recurring unstable power supply, we can purchase UPS power supply or 130-260V wide switching power supply to ensure that the computer works stably.
2. Poor quality of the plug or power outlet, poor contact
Most of the power plug on the market is not good quality, the internal contacts are hand-welded, and often use acidic flux, which is likely to lead to oxidation of the solder joints in the future use of the cause of the circuit breakers or leakage between the fire wire and the zero line. Because of manual welding, at the same time, because of the use of phosphorus brass sheet elasticity is poor, not long before it is easy to lose elasticity, resulting in poor contact with the host or the monitor power plug to produce a large contact resistance, in a long period of time will be a large number of heat and lead to a false connection, which will be manifested in the host to restart or the monitor flashes a black screen.
Another possibility is that we use the wall socket at home, most wall socket installation are not using professionals, so the socket internal wiring is very non-standard, especially these sockets if we often use high-power electric heaters will easily lead to internal heating oxidation of the false connection and the formation of intermittent power outages, resulting in the computer reboot or monitor blinking phenomenon.
Solution:
① Do not try to save money and buy cheap power plugs, buy some brand-name power plugs, because its internal are automatically installed on the machine crimping, no manual welding.
② For the problem of whether the wall socket internal false connection, we can change the host to a wall socket to try to see if there is the same automatic restart problem.
3. Insufficient power or poor performance of the computer's power supply
This situation is also relatively common, especially when we add new equipment to their hosts, such as replacing high-grade graphics cards, adding a burner, adding a hard disk, it is easy to appear. When the host is working at full speed, such as running large-scale 3D games, high-speed burning or ready to read CD-ROMs, just start, dual hard disk copy data, it may be due to the instantaneous power supply power is insufficient to cause the power supply protection and stop the output, but due to the fact that when the power supply stops the output, the load is reduced, which is when the power supply is started again. Because the recovery time after the protection is very short, so the performance to us is the host automatically reboot.
There is another situation, is the host switching power supply performance is poor, although the voltage is stable is also within the normal allowable range, but because of its harmonic content in the output power supply is too large, will also lead to frequent host crash or restart. For this situation we use a multimeter to test its voltage is normal, it is best to replace a good power supply to replace the exclusion.
Solution: Now replace the high-quality high-power computer power supply.
4. host switching power supply mains plug loose, poor contact, not plugged tight
This situation, most of them will appear in the DIY machine, the host power supply with the power cord did not go through the 3C certification, and the power socket does not match. When we shake the table or touch the host will appear host automatically reboot, usually accompanied by a slight electric fire "pop" sound.
Solution: Replace the high-quality 3C certified power cord.
5. motherboard power ATX20 socket has a virtual weld, poor contact
This failure is not common, but does exist, mainly in the host of normal operation, left and right to move the ATX20 pin plug, to see whether the host will automatically restart. Also check the reeds inside the 20-pin power plug for oxidation, which can also easily lead to high contact resistance and poor contact, causing the host to crash or reboot. Sometimes it is also necessary to check the connecting wires at the end of the 20-pin plug, whether they are all secure.
Solution:
① If the motherboard solder joints are soldered, directly with a soldering iron to make up the soldering can be. Note: In the motherboard, hard disk, graphics card and other computer board welding, be sure to soldering iron well grounded, or unplugged from the power supply when welding.
② If it is a power supply problem, it is better to replace a good power supply.
6. CPU problems
Part of the internal function of the CPU circuit is damaged, the second level of cache damage, the computer can start, and even enter the normal desktop for normal operation, but when a special function will restart or crash, such as drawing table, play VCD, play games, and so on.
Solution: Try to shield the second level cache (L2) or first level cache (L1) in CMOS, to see if the host can run normally; or not directly with a good CPU to replace the exclusion. If you can run normally after shielding, you can still make do, although the speed is slower, but after all, save money.
7. Memory problems
Memory stick if a chip is not completely damaged, it is likely to pass the self-test (after all, most of them are set up POST), but in the operation of the memory will be due to the heat of the memory and lead to the failure of the function of the accidental reboot. Most of the time the boot will alarm when the memory is corrupted, but there are still failures where the memory is corrupted without alarming or powering up. It is best to use the method of elimination to be able to quickly determine the site of failure.
8. Optical drive problems
If the optical drive internal damage, it will also lead to slow startup of the host or can not pass the self-test, but also may be in the process of work suddenly reboot. For the latter situation if we replaced the optical drive after the emergence of the optical drive, it is likely that the optical drive is caused by different power consumption. We need to understand is that, although the optical drive ATPI interface is the same, but different manufacturers of its pin definition is not the same, if we have a problem with the hard disk cable, it may produce a brand of optical drive to use no problem, but for other brands of optical drive can not work in the case, which requires attention.
9. RESET key quality problems
If the RESET switch is damaged, the internal reed is always in the short position, the host can not power self-test. However, when the RESET switch elasticity is weakened or the button on the chassis is not easy to pop up when pressed, there will be in the process of use, because of the occasional touch of the chassis or in the normal use of the state and the host suddenly reboot. Therefore, when the RESET switch can not be pressed freely, we must carefully check, it is best to replace the new RESET button switch or the chassis of the external buttons for oil lubrication treatment.
There is another situation, because the RESET switch leads in the chassis in the welding of the insulation layer is stripped too much, coupled with the use of the process of many times in the removal of the box will result in the RESET switch line is too close to cause collision, resulting in the host automatically reboot.
10. Access to the network card or parallel port, serial port, USB interface access to external devices automatically restart
This is generally due to external faults, such as the printer's parallel port is damaged, a foot shorted to ground, USB device is damaged shorted to ground, the network card is not a standard of workmanship, etc., when we use these devices, because of a sudden short circuit of power supply to cause the computer to restart.
Three, other reasons
1. poor heat dissipation or temperature measurement failure
CPU poor heat dissipation, often the problem is that the CPU radiator fixed card off, the CPU radiator and the CPU contact with the CPU between the foreign body, the CPU fan for a long time after the use of the radiator accumulates too much dust, these conditions will lead to poor CPU heat dissipation, accumulation of high temperature and reboot automatically.
There is also damage to the temperature probe under the CPU or the temperature measurement circuit inside the P4 CPU, and the BIOS on the motherboard has a bug that does not allow for temperature measurement under certain special conditions, which can cause the host computer to reboot automatically during the working process.
Lastly, the CPU protection temperature we set in CMOS is too low, which can also cause the host to restart automatically.
2. Fan speed failure
When the CPU fan speed circuit is damaged or the speed line intermittent break, because the motherboard can not detect the fan speed will be mistaken for the fan stops and automatically shut down or reboot, but we check the CPU fan may be seen to rotate normally, and the speed measurement is normal.
3. Strong magnetic interference
Don't underestimate the electromagnetic interference, many times our computer crash and reboot is also due to the interference caused by these interferences both from the chassis inside the CPU fan, chassis fan, graphics card fans, graphics cards, motherboards, hard disk interference, but also from the outside of the power line, inverter air conditioning and even automobiles and other large-scale equipment interference. If our host's interference performance is poor or poor shielding, there will be a host of unexpected restart or frequent crash phenomenon.
Computer problems are strange, but if we can understand the basic working principle of the computer, then we will be able to troubleshoot the computer hardware and software will be handy, and not every day head. I hope this article will help you, please support more.
Reference:
Deadline during operation
Deadline during operation refers to the deadline situation that occurs when we use windows, that is to say, running some application programs under the windows operation platform and the deadline phenomenon occurs without any complaint or reason. Some of this phenomenon is a conflict between the application and the operating system, some of the application itself has a bug and so on, the following on the run-time crash phenomenon to explain.
Running some applications when the phenomenon of death: the cause of this failure there are three possible reasons, one is the application was infected by a virus, and then the application itself there are bugs, as well as the application and the operating system there are some conflicts.
Insufficient resources caused by the crash: in the use of the process of opening the application too much, taking up a lot of system resources, resulting in the use of the process of insufficient resources, so in the use of large-scale applications, it is best to open the application of the application of the software has nothing to do with the best.
The remaining space on the hard disk is too small or too much debris caused by the crash: If the remaining space on the hard disk is too small, because some applications need a lot of memory to run, which requires virtual memory, and virtual memory is given by the hard disk, so the hard disk has to have enough remaining space to meet the demand for virtual memory; and that is, we need to get into the habit of organizing the hard disk on a regular basis.
Some files are overwritten and cause the phenomenon of running some applications crash: when installing a new application some file overwriting prompts, I recommend that you prefer not to overwrite any file operation, otherwise it may cause the phenomenon of running some applications crash (prevention).
Some of the files were deleted and caused to run some of the applications crash phenomenon: in our uninstallation of some applications will often appear on some of the files whether to delete the prompt, if you are not particularly clear about the file with other files have no relationship, it is best not to delete it, otherwise it may cause the running of some of the applications due to the lack of some of the files and the phenomenon of crashes, or even cause the entire system crash (prevention). system crash (prevention).
Program running after the mouse and keyboard are unresponsive: applications run after the crash, that the application is not the normal end of the run, has been occupying the system resources, and the operating system is not aware of this situation. The only way to end an application is to implement a forceful method, i.e., hold down the ctrl, alt and del keys at the same time to end the task.
Setting the power saving function causes the monitor to black screen frequently and die: usually due to the energy saving time set too short in the bios, or the time set in the screen saver is too short.
Hardware overclocking caused by the running of the machine: overclocking the computer can start, indicating that the overclocking is successful, why run the machine will be dead? Generally due to overclocking after the hardware produces a large amount of heat can not be distributed in a timely manner caused by the phenomenon of death, so often we overclocking at the same time also need to make reasonable improvements to the cooling device.
Hardware: computer hardware configuration is too low, memory speed mismatch (crash phenomenon: the mouse can move, click on the unresponsive), interrupt settings caused by the conflict between the hardware, a variety of drivers do not match, and so on may also cause in the operation of the phenomenon of the crash.