The computer is automatically restarted. When your game is playing, when your article wrote a few thousand words, when your design will be completed, the computer suddenly restarted. anger! At this time, you don't jump up and squat. Why is the computer will restart automatically? Here, I will summarize the possible causes of automatic restart of the computer for reference.
First, software
1. Virus damage
Since there is a computer, the computer virus also came into being. When the network became the information of the social information in today's social, the spread of viruses is more convenient, so the interference from time to time and destroy our normal work. The relatively typical is the "shock wave" virus that causes serious damage to the global computer last time, and the system will prompt the system to start automatically after 60 seconds. In fact, there are many viruses to automatically restart your computer in the DOS era.
We can use the latest version of anti-virus software to antivirate using the latest version of anti-virus software. Of course, there is a possibility that when you are online, it is maliciously invaded your computer and places the Trojan. This other party can control all the activities of your computer from remote control, and of course, it also includes restarting your computer. For some Trojans, it is not easy to clear, it is best to reinstall the operating system.
2. System file corruption
When the system file is destroyed, such as the Kernel32.dll under Win2k, the basic files below the fonts below the fonts below, the system is unable to complete the initialization when the system is started and forced to restart. You can do a test, try the word "fonts" in the Win98 directory. When you turn it over again, our computer will continue to start.
For this fault, because you can't enter the normal desktop, you can only cover the installation or reinstall.
3. Timed software or plan task software works
If you set up a restart or loading some work programs in the Plan Task Bar, the computer will start again when the time comes. For this case, we can open the "Start" item, check if there is an executable file or other timing work program that you are not familiar with, and then block it. Of course, we can also enter the "MSConfig" command directly in "run" command to select the startup item.
Second, hardware
1. City electric voltage is unstable
Generally, the switching power supply operating voltage range of household computers ranges from 170V to 240V. When the market voltage is less than 170V, the computer will automatically restart or shut down. Because the fluctuations of the main electric voltage we sometimes don't feel, so it will mistakenly think that the computer is inexplicably restarted.
Workaround: For regions where regular power supply is unstable, we can purchase the UPS power supply or 130-260V wide switch power supply to ensure computer stability.
2. Poor quality or power outlet, poor contact
Most of the high quality of power in the market is not good. The internal contacts are manually soldered, and the acidic flux is often used, which is easy to cause the solder joint in the future to cause the open circuit or the wire and the zero line. Because of manual welding, it is easy to lose elasticity because of the elasticity of the phosphorus brass flakes, causing a large contact resistance with the poor contact with the main unit or display, and will work for a long time A large amount of fever and causes false connections, and it will express the host to reboot or display the display of the monitor.
There is also a wall outlet that may be used at our home. The installation of most wall sockets is not using professional, so the wiring inside the socket is very unbaust, and if we often use high-power electric heaters, it is easy. It causes internal thermal oxidation to form intermittent power-off, causing a computer restart or a display blink.
Solution:
1 Don't save money and buy a low price of powerful power versus, buy some famous power plugs, because it is automatically installed in the machine, no manual welding. 2 For a false problem within the wall socket, we can try a host to change a wall outlet to see if there is the same automatic restart problem.
3. Computer power supply is insufficient or poor performance
This situation is also more common, especially when we add new devices to our host, such as replacing a high-end graphics card, add a burner, it is easy to appear after adding a hard drive. When the host works at full speed, such as running a large 3D game, performing high-speed burning or preparing to read the disc, just starting, the dual hard disk pair data, may cause power protection due to the shortage of instantaneous power supply, but due to when After the power is stopped, the load is alleviated, and the power is started again. Because the recovery time after the protection is very short, the performance gives us is that the host is automatically restarted.
There is also a situation in which the host switching power supply is poor, although the voltage is stable, it is also within the normal allowable range, but because the harmonic content of the output power supply is too large, it will also cause a recurrence or restart of the host. For this case, we use the multimeter to test its voltage, it is normal, it is best to replace an excellent power supply for replacement.
Workaround: Change high quality high power computer power supply.
4. The main unit switch power supply is loose, poor contact, no tight
In this case, most of them will appear on the DIY machine, the power cord of host power supplies have not passed 3c certification, and is not supported with the power outlet. When we shake the table or touch the host, the host will automatically restart, which is generally accompanied by a slight electric fire.
Solution: Replace the high quality 3C certified power cord.
5. The power supply of the motherboard has a duel, poor contact.
This kind of fault is not common, but it does exist, mainly when the host is working properly, moving the ATX20 pin plug left and right, see if the host will automatically restart. At the same time, it is also necessary to check whether the reeds inside the 20-pin power plug have an oxidation, which is easy to cause large contact resistance, poor contact, causing a host crash or restart. Sometimes you need to check the cable lines of the 20-pin plug, whether it is secure.
Solution:
1 If it is the motherboard solder joint bread, it can be sold directly with electric soldering iron. Note: When welding computer boards such as motherboards, hard disks, graphics cards, be sure to ground the iron iron, or unplug the power plug when welding.
2 If it is a power problem, it is best to replace a good power supply.
6. CPU problem
CPU internal partial function circuit is damaged, the secondary cache is corrupted, the computer can also start, and even enter the normal desktop for normal operation, but will restart or crash when a special feature is performed, such as drawing table, play VCD, Play games, etc.
Solution: Try to shield the secondary cache (L2) or level (L1) in CMOS, see if the host can run normally; no longer use a good CPU to replace the exclusion. If you can run normally after the mask, you can use it, although the speed is slow, it will save money.
7. Memory problem
If a chip is not completely corrupted, it is likely to pass the self-test (the most all of the number is set), but it will be unexpectedly restarted due to the large amount of memory during the runtime. Most of the time memory is damaged when the memory is alarm, but the memory is not alarm, and there is still no power failure. It is best to use the exclusion method to quickly determine the fault location.
8. Optical drive problem
If the internal damage inside the optical drive, the host will start slowly or cannot be self-test, or it may be suddenly restarted during the work. For the latter case, if we have changed after we change the optical drive, it is very likely that the power consumption of the optical drive is different. Everyone needs to understand, although the CD-ROM's ATPI interface is the same, but the pins definition of different manufacturers is different. If our hard drive is problematic, there may be no problem with a brand optical drive, but for other If the brand is not working, it will take care of you. 9. RESET key quality problem
If the RESET switch is damaged, the internal reed is always in a short position, the host cannot power the self-test. However, when the RESET switch is flexible or when the button on the chassis is not easily pops up, it will appear during use because the occasional touch chassis is suddenly restarted in normal use. So, when the reset switch cannot be moved, we must be carefully checked, it is best to replace the new RESET button switch or the external button of the chassis for refueling.
There is also a situation because the RESET switch leads in the chassis are excessively peeled off at the time of welding. In addition, plugging in the use process, it will cause the reset switching line to cause a collision, causing the host to automatically restart.
10. Automatic restart when accessing the NIC or parallel port, serial port, USB interface to access external devices
This is generally because there is a fault, such as the pair of parallel ports of the printer, short circuit, the USB device is damaged, the network card is not standard, etc., when we use these devices, it will be due to sudden power Short-circuit and cause the computer to restart.
Third, other reasons
1. Welding or measuring temperature
The CPU heat is poor, and the problem that often occurs is that the CPU's radiator fixation clip is detached, and there is a foreign body between the CPU radiator and the CPU contact. There is too much heat radiator after the CPU fan is used. These situations will cause the CPU heat dissipation. The temperature is too high and automatically restarted.
There is also the temperature measurement probe under the CPU or damage to the temperature measurement circuit inside the P4 CPU. The BIOS on the motherboard is not allowed to warm the temperature under a special condition, which will cause the host to automatically restart during work.
Finally, our CPU protection temperature set in CMOS will also cause automatic restart of the host.
2. Fan speed failure
When the speed circuit of the CPU fan is damaged or the speed of the speed is broken, because the speed of the motherboard does not detect the fan, it will be mistakenly shut down or restarted, but we may see the CPU fan is normal and the speed is measured. Also normal.
3. Strong magnetic interference
Don't watch electromagnetic interference, many times our computer crash and restart are also caused by interference, including both internal CPU fans, chassis fan, graphics fan, graphics card, motherboard, hard disk interference, also from external power lines , Interference of large equipment such as inverter air conditioners and even cars. If our host's interference performance is poor or poor shield, the host will appear unexpectedly restarted or frequently crazy.
