Shulou(Shulou.com)05/31 Report--

What is the reason for the failure to repair the 360 system first aid kit? If you don't know much, follow the editor to learn about it.

The following issues should be considered for automatic booting of computers:

I. Software

1. When the virus "shock wave" virus breaks out, it will also prompt the system to start automatically after 60 seconds. Trojans remotely control all the activities of your computer, including restarting your computer. Use 360 antivirus and other antivirus to remove viruses, Trojans, or reinstall systems.

two。 System files are corrupted, system files are destroyed, such as fonts under the KERNEL32.DLL,Win98 FONTS directory under Win2K, and other basic files when the system is running are corrupted, and the system will be forced to restart because it cannot complete initialization at startup.

3. Scheduling software or task scheduling software works if you set up a restart or load certain work programs in the scheduling taskbar, when the timing time comes, the computer will start again. In this case, we can open the "start" item, check if there are any execution files or other scheduled work procedures that we are not familiar with, block them and then turn them on to check. Of course, we can also directly enter the "Msconfig" command in "run" to select the startup item.

Second, hardware

1. The power supply of the chassis is insufficient, the DC output is not pure, and the dynamic response is slow. Users or installers often do not pay attention to the power supply and use cheap power supply, so it is one of the biggest suspects that the system restarts automatically.

The output power of ① power supply is insufficient, when running large 3D games and other software that takes up large CPU resources, CPU needs high-power power supply, the power supply is not enough and overload causes power protection and stops output. After the power supply stops output, the load is reduced, and the power supply starts again. Since the protection / recovery time is very short, the performance given to us is that the host restarts automatically.

The DC output of ② power supply is not pure, and the digital circuit requires pure DC power supply. when the harmonic content in the DC output of the power supply is too large, it will lead to errors in the operation of the digital circuit, such as frequent panic or restart.

The workload of ③ CPU is dynamic, the requirements for current are also dynamic, and the dynamic response speed is required. Some poor quality power supplies have a long dynamic response time, which can also lead to frequent crashes or restarts.

④ update equipment (high-end video card / large hard disk / video card), after adding equipment (burner / hard disk), the power exceeds the rated output power of the original power supply, which will lead to frequent crashes or reboots.

two。 There is a relatively high probability that the system restart will cause the system restart due to the poor thermal stability of the memory, the chip damage or the wrong setting of the memory.

① memory thermal stability is poor, boot can work normally, when the memory temperature rises to a certain temperature, it can not work properly, resulting in a crash or restart.

When the ② memory chip is slightly damaged, the boot can pass the self-test (setting Quick start does not fully detect memory), or it can enter the normal desktop for normal operation, and it will restart or crash when running some software with high Imax O throughput (media playback, games, graphic / 3D drawing).

Setting the CAS value of memory too low by ③ will also lead to memory instability and cause the system to restart automatically. In general, it is best to use the default settings of BIOS, do not change it yourself.

The temperature of 3.CPU is too high or the cache is corrupted

Overheated ① CPU often causes a protective automatic restart. The reason for the high temperature is basically due to poor heat dissipation of chassis and CPU, and poor heat dissipation of CPU, such as low material thermal conductivity of radiator, foreign body (mostly quality assurance) between radiator and CPU contact surface, low fan speed, too much dust accumulation of fan and radiator, and so on. In addition, the damage of the temperature probe under the CPU of the P2/P3 motherboard or the damage of the temperature measurement circuit inside the P4 CPU, the inaccurate temperature measurement of the BIOS on the motherboard under some special conditions, the low CPU protection temperature set in the CMOS and so on will also cause protective restart.

Primary and secondary cache corruption within ② CPU is a common failure of CPU. If the damage is mild, it can still be started, it can enter the normal desktop for normal operation, and it will restart or crash when running some software with high throughput (media playback, games, graphic / 3D drawing).

Automatic restart caused by 4.AGP graphics card, PCI card (network card, cat)

The workmanship of the ① external card is not standard or the quality is poor, which causes the misoperation of the RESET signal of the AGP/PCI bus and causes the system to restart.

② also has the case that the video card and network card are loose and cause the system to restart.

5. Automatic restart when parallel port, serial port and USB interface are connected to faulty or incompatible external devices

There is a fault or incompatibility outside the ①, such as printer parallel port damage, a pin to ground short circuit, USB equipment damage to ground short circuit, pin definition, signal level incompatibility and so on.

When ② hot-plug external equipment, the jitter is too large, causing the signal or power supply to be short-circuited instantly.

6. The internal circuit or chip of the optical drive is damaged, most of which is unable to read the disk / engraving. There is also a sudden restart of the host computer in the course of work due to damage to the internal circuit or chip. The design of the optical drive itself is poor, and FireWare has Bug. It will also cause a reboot when reading the CD.

7. Chassis front panel RESET switch problem chassis front panel RESET key is actually a normally open switch, the RESET signal on the motherboard is a + 5V level signal, connected to the RESET switch. When the switch is closed, the + 5V level turns on to the ground, the signal level drops to 0V, triggers the system to reset and restart, the RESET switch returns to the normal open position, and the RESET signal returns to the + 5V level. If the RESET key is damaged, the switch is always in a closed position, and the RESET signal is always 0V, the system will not be able to power on self-test. When the elasticity of the RESET switch weakens and it is not easy to pop up when the button is pressed, it will be easy to close the switch with a little vibration. This causes the system to reset and restart. Solution: replace the RESET switch. The RESET switch in the machine box is also short-circuited, causing the host to restart automatically.

8. It is rare for the motherboard to restart automatically due to motherboard failure. Generally speaking, the circuit related to RESET is faulty; sockets and slots have virtual welding and poor contact; individual chips, capacitors and other components are damaged.

III. Other reasons

1. Voltage instability of city power

The operating voltage range of the switching power supply of the ① computer is generally 170V-240V. When the power supply voltage is lower than 170V, the computer will restart or shut down automatically. Solution: add a voltage regulator (not UPS) or a 130-260V wide switching power supply.

If ② computers share a plug board with high-power appliances such as air conditioners and refrigerators, the voltage supplied to the computer will be greatly affected when these appliances are started, which is often shown as a system restart.

two。 Strong magnetic interference do not underestimate electromagnetic interference, many times our computer crash and restart is also caused by interference, these interference not only from the chassis internal CPU fan, chassis fan, graphics card fan, graphics card, motherboard, hard disk interference, but also from external power lines, frequency conversion air conditioning and even automobiles and other large equipment interference. If the interference performance of our host is poor or shielding is poor, the host will restart accidentally or crash frequently.

3. The AC power supply line is connected incorrectly. Some users ground the zero wire of the power supply line directly (not the zero wire of the watt-hour meter), which leads to automatic restart, due to the introduction of interference signal from the ground wire.

4. The quality of the plug-in or power outlet is poor and the contact is poor. After the power socket has been used for a period of time, the elasticity of the Reed is slowly lost, resulting in poor contact between the plug and the Reed, the resistance is constantly changing, and the current fluctuates with it, and the system will naturally be very unstable. Once the current does not meet the minimum requirements for the operation of the system, the computer restarts.

5. Too much dust causes the motherboard RESET line to be short-circuited and automatically restarts.

These are the reasons for the failure of 360 system first aid kit repair. What are the whole contents? have you all learned?

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