Analysis of computer crash failure

Every person who has ever used a computer may have had a crash, and a computer crash is really annoying. Sometimes it will bring you a lot of damage, but the problem is indeed very complex, the crash may be the hardware of the shortcomings, there may be bugs in the software, of course, but also may be your "illegal operation." Here are some examples of specific issues to be specific analysis:





Graphics Reason





Q A computer occurs on a regular basis, start the computer, there will be three sound alarm, the monitor can sometimes not light, but the host works normally, set into 32-bit color, the crash more frequently. Why?





A causes the above situation to panic the reason may have two: one is the display card does not have the heat to cause the work not to be normal, another reason is the video card and the motherboard compatibility is not good. After setting the high color of the panic, it is likely that the graphics display function is relatively weak, in the case of higher color to ensure that the original resolution, it seems this problem is mainly from the video card.





Power Reason





Q computer has been used very well, but the recent period of time occasionally occurs during the startup process of the panic, not every time, and sometimes need two or three times to successfully start. Why?





A has always been good because of previous use, and can generally be ruled out as a hardware compatibility issue. And in the start-up process of the crash, the screen did not give the relevant information, so it is not very similar to the problem of software, so most likely is due to the power of aging or overload caused by the general replacement power test can be.





Driver Reason





Q in the upgrade win 98 process, the "Press Start button appears, the computer will restart immediately, or 15 seconds after the computer will automatically restart." dialog box, but after startup, the blue screen crashes. Why?





A because it is in the installation system of the panic, most likely due to the conflict of hardware devices, you can unplug the expansion card other than the video card before you reinstall Win 98, which may be the result of a win 98 system that is incompatible with the driver of the original video card. You can choose to enter Safe mode at power-on and then upgrade the driver for the video card in Control Panel.





DOS Boot reason





Q computer crashes when "starting Windows 98" information appears when it starts. Why?





A In this case the panic, it is likely that the DOS boot portion of WIN 98 has been compromised because it has not yet entered the win 98 system, which requires a win 98 startup floppy disk, a boot disk to restart the computer, and then a DOS input of "SYS c:" command so that you can repair the DOS boot system on your hard disk, the problem should be resolved, but it is important to note that the boot disk must be in accordance with the current operating system version or it will damage the Windows system.





Virtual Memory Reason





Q in the win 9x run a large application, the hard drive lights flash, then the crash. Why?





A This is a kind of panic that we often encounter, and this problem is mostly related to the virtual memory set up. If the own memory is relatively small, but also run a large application, then need to have a larger virtual memory, but if the virtual memory is not enough, it will cause the panic above. Therefore, it is advisable to set the capacity of virtual memory slightly larger, and frequently delete some temporary virtual files.





Registry Reason





Q about the win 9x registry damage caused by the crash phenomenon. How to solve?





a the registry in the Windows system is a very dangerous place and is not normally modified. There is a problem of mistakenly deleting, you can restore the backup registry. The specific method is to start the computer to a pure DOS state, and then go to the Windows directory, execute the command:





attrib-h-r-s system.da0





atttib-h-r-s user.da0





copy system.da0 System.dat





copy user.da0 User.dat





finally reboot the computer.





Bootstrapper Reason





Q computer after post, on the screen display "no ROM basic,system halted" information after the crash, hard disk, etc. also no longer flashing. Why?





A causes this failure because the boot of the hard drive is damaged or is affected by a virus, it is also possible that the last two bytes of the primary boot area "55AAH" have been overwritten, because once the two bytes have been overwritten, the system no longer believes that there is a hard drive, so the operating system cannot start. The solution is to start the computer with a floppy disk and, in DOS, execute the "FDISK/MMR" command so that the correct master bootstrapper and end identities are overwritten on the hard drive's main boot area.





Install operating system reason





Q in the computer startup, the screen appears on the "Error Loading Operation System" information, and then crashed. Why?





A displays information above means: Mount operating system error. This is only prompted when there is an error reading the partition boot sector. May be because:





1, the partition table indicates that the partition start address is incorrect.





2, the track flag and sector ID of the track on which the partition boot sector is damaged, the specified sector is not found.





3, drive read circuit failure, but this situation is relatively rare, most of the random read error, because the system to boot to here, it should be said to have correctly read out a master boot sector.





solve the above problems, you need to use such as Norton's Disk Doctor ndd, such as repair software to restore the hard disk partition table