Why does the computer shut down automatically when the weather is hot?

Computer crash analysis

Everyone who has used a computer has probably encountered the crash phenomenon. The computer crash is indeed a very annoying thing, and sometimes it will cause you It will bring a lot of losses, but this problem is indeed very complicated. The crash may be caused by a defect in the hardware or a bug in the software. Of course, it may also be your "illegal operation". Below I would like to analyze specific problems with some examples:

Graphics card reasons

Q A computer frequently crashes. When you start the computer, there will be three alarm sounds, and the monitor will Sometimes it cannot light up, but the host works normally. After setting it to 32-bit color, it crashes more frequently. Why?

A There may be two reasons for the crash in the above situation: one is that the graphics card is not working properly due to poor heat dissipation, and the other is that the compatibility between the graphics card and the motherboard is poor. The crash after setting to high-bit color is probably because the display function of the graphics card is relatively weak, and the original resolution cannot be guaranteed in the case of higher-bit color. It seems that this problem mainly comes from the graphics card.

Power supply reasons

Q The computer has been working well, but recently it has occasionally crashed during startup. It does not happen every time. Sometimes it takes two or three times to successfully start. start up. Why?

A Since the usage has been very good in the past, it can generally be ruled out as a hardware compatibility problem. However, during the startup process, there is no relevant information on the screen, so it is not possible. It seems like a software problem, so it is most likely caused by the aging or overload of the power supply. Generally, it is enough to replace the power supply and check it.

Driver reason

Q During the process of upgrading Win 98, the "Press the start button now, the computer will restart immediately, otherwise the computer will automatically restart after 15 seconds." dialog box appears. box, but after booting, it gets a blue screen of death. Why?

A Since it crashes during the installation of the system, it is mostly caused by conflicts of hardware devices. You can unplug other expansion cards except the graphics card first, and then reinstall Win 98. If the above situation still occurs, it may be caused by the Win 98 system being incompatible with the original graphics card driver. You can choose to enter safe mode when booting, and then upgrade the graphics card driver in the control panel.

Reasons for DOS startup

Q When the "Starting Windows 98" message appears after startup, the computer crashes immediately. Why?

A The crash in this case is probably due to the damage to the DOS startup part of Win 98, because the Win 98 system has not yet been entered at this time. To solve this problem, you need to use Go to the Win 98 boot floppy disk, use the boot disk to restart the computer, and then enter the "sys c:" command in the DOS state. This can repair the DOS boot system in the hard disk. The problem should be solved, but it should be noted that The startup disk must be consistent with the current operating system version, otherwise the Windows system will be damaged.

Virtual memory reason

Q When running a large application under Win 9x, the hard disk light flashes wildly and then freezes. Why?

A This is a crash situation we often encounter. This problem is mostly related to the set virtual memory. If the memory itself is relatively small and a large application is running, a larger virtual memory is needed. However, if the virtual memory is not enough at this time, it will cause the above-mentioned crash. Therefore, it is recommended that you set the virtual memory capacity slightly larger and delete some temporary virtual files frequently.

Registry reasons

Q Regarding the crash caused by Win 9x registry damage. How to solve it?

A The registry in the Windows system is a very dangerous place and should not be modified under normal circumstances. If the problem of accidental deletion occurs, you can restore the backup registry. The specific method is to start the computer in a pure DOS state, then enter the Windows directory and execute the following command:

attrib -h -r -s system.da0

atttib -h -r -s user.da0

copy system.da0 system.dat

copy user.da0 user.dat

Finally restart the computer.

Cause of boot program

Q After power-on self-test, the computer crashes after displaying the message "No ROM Basic, System Halted" on the screen, and the hard disk no longer flashes. Why?

A The reason for this failure is that the boot program of the hard disk is damaged or infected by a virus. It is also possible that the last two bytes "55AAH" of the main boot area have been rewritten, because these two Once the bytes are rewritten, the system will no longer think that the hard disk exists, so the operating system will not be able to start.

The solution is to start the computer with a floppy disk, and in DOS state, execute the "FDISK/MMR" command, so that the correct main boot program and end flag can be overwritten on the main boot area of ??the hard disk.

Reasons for installing the operating system

Q When the computer started, the "Error Loading Operation System" related information appeared on the screen, and then it crashed. Why?

A The message displayed above means: Error loading operating system. This is only prompted when there is an error reading the partition boot sector. The possible reasons are:

1. The partition starting address indicated by the partition table is incorrect.

2. The track mark and sector ID of the track where the partition boot sector is located are damaged, and the specified sector cannot be found.

3. The drive read circuit is faulty, but this situation is relatively rare. Most of them are random read errors. Because the system boot has reached this point, it should be said that a master boot sector has been correctly read.

To solve the above problems, you need to use repair software like Norton’s Disk Doctor NDD to restore the hard disk partition table