As we all know, crash is one of the most common faults in the process of using your computer, but the cause of the crash is different, today Xiaobian from the start, run and shutdown phase of the computer crash Perform a simple analysis, the specific reasons for the system crashes are as follows.
[Crash when shutting down the system]
The crash when exiting the operating system refers to the crash when exiting the windows system or returning to the dos state. phenomenon. If Windows can't be completely shut down, it will write the data in the disk buffer to the hard disk, and then enter an infinite loop. Unless the user restarts the system, the system cannot be shut down. The cause of this phenomenon may be related to the operating system settings and improper settings of some drivers. Generally, Windows will close the drivers that are being used when exiting the system or returning to the dos state. These drivers will also be used according to the current situation. The data is written back, but if the driver is not properly set up, the driver can't find the device, so it keeps searching for the device, which creates a fake crash.
[Crash during startup]
To analyze the crash of the computer at startup, you must first understand the startup sequence of the computer system to analyze whether the computer is caused by a software problem or a hardware failure. Therefore, it is necessary to briefly introduce the startup sequence of the computer system: turn on the computer power → detect the graphics card → detect the memory & rarr; execute the bios & rarr; detect other devices (cpu, hard disk, etc.) → execute the operating system (os) Initialize the file. The boot process of the operating system is more complicated. The first is to transfer the bootstrap loader program and the self-diagnosis program in the rom (read-only memory) to the ram (random memory). With the bootstrap loader running, the system files of the operating system. It will also be loaded into the ram, and then the two system files io.sys and msdos.sys will be executed. At this time, the “displaying windows98……” screen will appear on the computer display, and finally the system.ini and win.ini will be initialized. Read the registry file. At this point, if there are no problems, the computer system will be successfully started. Here is a look at the crash that occurred during this process.
The computer system does not respond after booting: If the power is not turned on, look at the power cable is not connected, even the power cable does not have any improvement, the fault may be a problem with the power supply, try to replace the power supply.
The computer monitor does not respond after booting, and it is followed by a long 2 short alarm sound. The first thing is to eliminate the display failure, because even if the display is faulty, it will not cause the computer to crash. This is mostly due to the display. The card is not inserted or loosened. Open the chassis and reinstall the display card, or try another slot. This will solve the problem.
The display shows a short display adapter information, and there is a 1 long and 1 short alarm sound after the crash: since the display adapter information appears, the display adapter is ok, this situation is often a memory failure, the solution Open the chassis and reinstall the memory module. If it doesn't work, try another memory stick. Of course, you must take a good look at the expansion slot to see if it is intact. This will definitely eliminate this fault.
The crash after the bios upgrade failed: find the computer with the same model bios motherboard, back up the bios program on this computer, use the bios refresh program to refresh it, provided that the bios can be refreshed.
Criminate caused by improper cmos setting: This fault is very much. Here are just a few common examples, such as improper hard disk parameter setting or improper mode setting, which can cause the computer to fail to start, memory parameters are not set properly, such as memory without ecc function. Set it to have the ecc function, which often causes the computer to crash due to memory errors, and so many examples, the user only needs to correct the settings.
Starting computer crash after computer overclocking: Now overclocking is a very fashionable topic for the majority of computer users. From time to time, the computer is overclocked, especially now many motherboard manufacturers will overclock in cmos, so diy Don't mention how happy you are, because overclocking is more convenient and faster, but is there a limit to overclocking? It is not known that if you overclock after restarting your computer after overclocking, then your overclocking is too high and you need to lower it.
The accidental deletion or error of the system file causes the computer to fail to boot and crashes: Since windows startup requires four files: command.com, io.sys, msdos.sys and drvspace.bin, if these files are damaged or mistaken If you delete it, even if the various hardware settings in cmos are correct, it will not help, and the system will not start. The only way to solve the problem is to start the computer with a floppy disk (of course, the system disk with the same system version), and then type sysc:.
Initialization file corruption caused the computer to fail to boot and crashed: Windows startup needs to read system.ini, win.ini and registry files (user.dat, system.dat), if there is config.sys and The autoexec.bat file is of course also to be read. As long as there is an error message in these files, it may crash, especially the four files system.ini, win.ini, user.dat and system.dat are important. Ding point error system will not be able to start, for which I strongly recommend that users must always back up these four files.