Category: Computer/Network>>Hardware

Problem description:

1: It is reflected in the sudden power outage during the burning process. Only the display is on and the host has been turned off. (If you open it again, you need to change a jack)

2: The power suddenly went off during the LAN transmission

3: The power went off again when installing the system today. The good one was when it was 80% installed before it shut down

4: In a few cases, it did not automatically shut off the power but restart automatically

The CPU was normal

Just now Someone said it was a power supply problem. Is it a power supply problem?

Analysis:

This is a failure or abnormal shutdown function. How to solve this kind of failure?

1. Shutdown process and failure reasons

The Windows shutdown program will perform the following functions during the shutdown process: complete all disk write operations, clear the disk cache, and close the window. Programs, close all currently running programs, and convert all protected-mode drivers to real mode.

The main causes of Windows system shutdown failure are: damaged sound files when choosing to exit Windows; incorrect configuration or damaged hardware; incompatible BIOS settings; "Advanced Power Management" or "Advanced Power Management" in the BIOS "Advanced Configuration and Power Interface" settings are inappropriate; the video card is not assigned an IRQ in real mode; a program or TSR program may not be shut down properly; an incompatible, corrupt, or conflicting device driver is loaded etc.

2. Fault analysis and solution

1. The sound file is damaged when exiting Windows

First, you can determine whether the "Exit Windows" sound file is damaged. ——Click "Start" → "Settings" → "Control Panel", and then double-click "Sound". In the Event box, click Exit Windows. In Name, click (None), click OK, and then shut down the computer. If Windows shuts down normally, the problem is caused by exiting the sound file. To resolve the problem, choose one of the following: Restore the sound file from backup Reinstall the program that provides the sound file Configure Windows not to play "Exit Windows" sound file.

2. Quick shutdown is abnormal

Quick shutdown is a new feature in Windows 98, which can greatly reduce shutdown time. However, this feature is not compatible with some hardware and may cause the computer to stop responding if it is installed in the computer. You can disable fast shutdown by clicking "Start" → "Run", type "Msconfig" in the "Open" box, and then click "OK" (see Figure 1). Click Advanced → Disable Fast Shutdown, click OK, and click OK again. The system prompts you to restart the computer. You can restart. If the computer shuts down normally, the fast shutdown feature might be incompatible with one or more hardware devices installed on the computer.

3. Pay attention to "Advanced Power Management"

The "Advanced Power Management (APM)" function on the computer can also cause shutdown or black screen problems. To determine whether APM is causing the shutdown problem, click Start → Settings → Control Panel, and then double-click System. On the Device Manager tab, double-click System Devices. Double-click Advanced Power Management in the device list, click the Settings tab, and then click to clear the Enable power management check box. Keep clicking OK until you return to Control Panel. Restart the computer. Shut down the computer. If the computer shuts down normally, the cause of the problem may be APM.

4. Startup and shutdown failure

When everyone uses a computer, they often encounter the message "You can safely shut down the computer" when Windows just starts, or Failures such as shutting down immediately upon startup or restarting upon shutdown. The cause of this type of failure is generally caused by damage to the Wininit.exe or Vmm32.vxd file. The solution is to retrieve these two files from the Windows installer compressed package. Enter the Windows\\system subdirectory, rename Vmm32.vxd to Vmm32.XXX for backup, and then click "Start" → "Programs" → "Accessories" → "System Tools" → "System Information". Click "Tools" in the menu bar, then select "System File Checker", click "Extract a file from the installation disk" (see Figure 2), and then enter "Wininit.exe" in the "File to extract" box ” or “Vmm32.vxd”.

Click Start and follow the on-screen prompts to extract the files from the Windows CD-ROM or installation disk to the C:\\Windows\\System folder and repeat this step to replace the file Wininit.exe Or Vmm32.vxd.

5. Bootlog.txt file error

In addition, positioning problems in the Bootlog.txt file can also cause a black screen failure during shutdown. You can first use a text editor, such as "Notepad", to check the "Terminate=" entry in the Bootlog.txt file. These entries are located at the end of the file and may provide some clues as to the cause of the problem. For each "Terminate=" entry, find the matching "EndTerminate=" entry.

Terminate=Query Drivers indicates a problem with the memory manager;

Terminate=Unload indicates a conflict between Neork and the real mode or network driver in Config.sys;

< p> Terminate=Reset Display indicates that the video driver may need to be updated;

Terminate=Rit indicates that there is a problem with the sound card or mouse driver;

Terminate=Win32 indicates that it is related to 32-bit programs The problem is blocking the thread.

If the last line of the Bootlog.txt file is "EndTerminate=KERNEL", Windows 98 can be shut down successfully.

6. There is a problem with Config.sys or Autoexec.bat

In addition, you can check whether there is a conflict in the Config.sys file or Autoexec.bat file? First determine whether there is a conflict in the Config.sys file or Autoexec.bat file, click Start, and then click Run. In the Open box, type Msconfig, and then click OK. Click Diagnostic Startup and then OK. When prompted to restart your computer, click OK. If the computer starts or shuts down incorrectly, determine which line of the Config.sys or Autoexec.bat file is causing the problem.

To determine which line is causing the problem, restart your computer. While your computer restarts, hold down the Ctrl key. Select "Safe Mode" from the "Startup" menu. After starting, click "Start" and then "Run". In the Open box, type Msconfig, and then click OK. Click to clear the check box for rows without Windows icons in the Config.sys and Autoexec.bat tabs. Using this Config.sys file, click to enable a certain line. Click OK. When prompted to restart your computer, click OK. If the computer starts and shuts down normally, enable another line and repeat the steps above to gradually enable lines in the Config.sys file and Autoexec.bat file until you find the problem.

7. Internal system problems

In addition, it can be determined whether there are internal system problems. Click Start → Run. In the Open box, type Msconfig, and then click OK. Click Advanced in the General tab. Click to clear the following checkboxes in Advanced Troubleshooting Settings, and then click OK: System ROM breakpoints are disabled; Virtual HD IRQ is disabled; EMM does not contain A000-FFFF. When prompted to restart your computer, click OK. If the computer starts normally, repeat the above steps, but in the step "Click to clear the following check boxes in Advanced Troubleshooting Settings," click to select a check box. Repeat this process, selecting a different check box each time, until you find that the computer does not shut down gracefully. Once you find that your computer cannot restart or shut down, you can repeat the above steps again and click to clear the check box you just selected.

8. Check the CMOS settings

Incorrect CMOS settings can also cause computer shutdown problems. You can press the "Del" key to enter the CMOS settings page when the computer starts, and focus on checking the CPU. Are the options such as FSB, power management, virus detection, IRQ interrupt shutdown, disk startup sequence, etc. set correctly? For the specific setting method, you can refer to your motherboard manual, which has very detailed setting instructions. If you really don’t understand its settings, it is recommended that you directly load or remove the CMOS battery in CMOS, short-circuit jumpers, and select the manufacturer’s default settings.

9. Hardware problems

In addition, some problems with the BIOS itself or the hardware system itself can also cause inability to shut down.

When you find that you have installed new hardware and the system hangs when shutting down, such as a black screen on the monitor, no response from the keyboard and mouse, etc., then it is likely that there is a compatibility issue with the driver configured for the new hardware. To solve this kind of third-party hardware incompatibility problem, you usually go to the hardware manufacturer's website to find the solution, find the latest driver for the device, download and install it into your machine system, which usually solves the problem.

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Solve the "problem" of not shutting down normally

Some friends once asked the author: Why can't my computer shut down automatically? The author had to solve such problems for them, and at the same time "upgrade experience to theory". I believe this article can also help you solve some problems.

For computers with ATX power supply, Windows 98 provides the automatic shutdown function of the computer. But in many cases, our computers cannot shut down smoothly and normally. Sometimes they freeze or become unresponsive during the shutdown process, forcing us to restart the computer or forcibly turn off the power of the computer. Is there a way to prevent computer shutdown from failing? Let's analyze the reasons together.

1. Shutdown music

Many friends like to set a shutdown music in the sound settings of the "Control Panel" to add some life to the cold computer. If the shutdown music file is damaged for some reason and cannot be played normally, then the shutdown process will naturally fail. If your computer cannot shut down normally and you have set the shutdown music, you might as well set the shutdown music to "None" (as shown in Figure 1) and then try again.

2. Driver incompatibility

Incompatibility between hardware drivers can also cause the computer to fail to shut down properly. There is a trick here. Every time Windows 98 fails to shut down, a record will be made in the Bootlog.txt file under the root directory of the C drive. Find out the "Terminate=" and "EndTerminate=". The shutdown failure is recorded here. reason.

Let’s take the computer I’m using now as an example. At the beginning, I used a Xiaoyingba TNT2 M64 graphics card. It was normal at first. Later, I found that as long as I ran 3D games, Regardless of the length of time, if you shut down the computer immediately after exiting the game, it will definitely fail and you will have to restart it once before you can shut down normally. So I checked the Bootlog.txt file after the shutdown failed. At the end of the file, I found the following records:

Terminate=Reset Display

EndTerminate=Reset Display

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EndTerminate=User

From the records, it seems that the shutdown failure has something to do with the graphics card, so I installed the new version of the TNT2 driver on the driver CD, but the problem still exists. I installed the latest DirectX 8.1 again, but the problem still didn't resolve. Finally, after running the DirectX diagnostic tool "DxDiag" (the program is in the C:\\Program Files\\DirectX\\Setup directory), it prompts "The file Nvdisp.drv is not digitally signed..." on the "Display" page. It seems that the TNT2 driver I installed before did not pass Microsoft certification, so I went online and downloaded the latest driver 28.32 WHQL version of TNT2 NVIDIA_WHQL (that is, certified by Microsoft) for Windows 9X. After installation, I restarted and ran the "DxDiag" program again. , it prompts "No problems found" on the "Display" page. At this time, you can shut down smoothly after running various 3D games.

After many tests, we found that shutdown generally fails. As long as it is not a fault of the hardware itself, you can check the Bootlog.txt file to find the reason. The records listed below may cause the computer to fail to shut down. You can find out the reason based on the situation displayed in your computer's Bootlog.txt:

Terminate=Query Drivers There is a problem with the memory management program

Terminate=Unload Neork Neork conflicts with the real-mode network driver in Config.sys

Terminate=Reset Display There is a problem with the graphics card settings or driver

Terminate=RIT Sound card or Some old mouse drivers have problems related to timers

Terminate=Win32 Some 32-bit programs lock threads

You can compare the above according to the situation of your own computer. There are several reasons to find and solve the computer shutdown failure.

3. Software is difficult to exit

Sometimes the shutdown failure is not due to the computer system itself, but because some programs cannot exit normally when shutting down.

Many friends do not close all running programs or software before shutting down, but let Windows automatically close them when it shuts down. It is true that most software or programs can be automatically closed when the computer executes the shutdown procedure, but there are also a few that cannot exit automatically. Therefore, when the computer is shut down, it is necessary for us to check what other software or programs are running.

I found that the computer often failed to shut down normally. Even if "Quick Shutdown" was disabled, it still didn't work. Later I discovered that when a certain software is running on the computer (since this software is resident in memory, it will automatically appear in the system tray after running), if I do not exit it from the system tray when shutting down the computer, it will definitely Unable to shut down. And before shutting down, you can close the running software yourself and you can shut down normally. Therefore, when shutting down, it is best to exit various executing programs before executing the shutdown command.

4. Haste makes waste

There is a bug in the shutdown program of Windows 98, which is "quick shutdown". In many cases, it prevents us from shutting down normally. As the saying goes, "Haste makes waste."

The solution is simple, just "disable fast shutdown". Click "Start" → "Run", enter "msconfig" and click "OK". The "System Configuration Utility" window appears, click the "General" page, and then click the "Advanced" option. In the "Advanced Troubleshooting Settings" window that appears, check the "Disable Fast Shutdown" option (Figure 2 ), thus completing the entire operation.

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1. Software

1. Virus damage

A typical example is the "shock wave" virus that caused serious damage to computers around the world some time ago. When it attacks, it will also prompt that the system will automatically start in 60 seconds. In fact, as early as the DOS era, there were many viruses that could automatically restart your computer.

As for whether it is caused by a virus, we can use the latest version of anti-virus software for anti-virus. Generally, viruses will be found. Of course, there is another possibility that someone maliciously invaded your computer while you were surfing the Internet and placed a Trojan horse program. In this way, the other party can remotely control all activities of your computer, including, of course, restarting your computer. Some Trojans are not easy to remove, so it is best to reinstall the operating system.

2. System files are damaged

When system files are damaged, such as KERNEL32.DLL under Win2K, fonts under the Win98 FONTS directory, etc., basic files when the system is running are damaged, and the system will not be able to complete initialization at startup. And force a restart. You can do an experiment and try renaming the font "FONTS" in the WIN98 directory. When you turn it on again, our computer will start repeatedly.

For this kind of failure, because you cannot enter the normal desktop, you can only overwrite the installation or reinstall.

3. Scheduling software or scheduled task software works

If you set up the "Scheduled Task Bar" to restart or load certain work programs, when the scheduled time comes, the computer will also start again. In this case, we can open the "Startup" item, check if there are any executable files or other scheduled work programs that we are not familiar with, block them, and then turn on the computer to check. Of course, we can also directly enter the "Msconfig" command in "Run" to select startup items.

2. Hardware

1. The mains voltage is unstable

The working voltage range of the switching power supply of general home computers is 170V-240V. When the mains voltage is lower than 170V, the computer will automatically restart or shut down. Because we sometimes cannot feel the fluctuations in the mains voltage, we mistakenly think that the computer has automatically restarted inexplicably.

Solution: For areas with frequent unstable power supply, we can purchase UPS power supply or 130-260V wide switching power supply to ensure stable operation of the computer.

2. The quality of the power strip or power socket is poor and the contact is poor

Most of the power strips on the market are of poor quality. The internal contacts are welded by hand, and acidic flux is often used, which can easily lead to problems in the future. Oxidation of solder joints during use may cause open circuits or leakage between live and neutral wires. Due to manual welding and the poor elasticity of the phosphor brass sheet used, it will easily lose its elasticity after a short period of time, resulting in poor contact with the power plug of the host or monitor, resulting in a large contact resistance, which will occur when working for a long time. A large amount of heat will cause a virtual connection, which will appear as the host restarts or the monitor flashes black.

Another possibility is the wall sockets we use at home. Most wall sockets are not installed by professionals, so the wiring inside the sockets is very non-standard, especially if we often use high-power sockets. When using an electric heater, it is easy to cause internal heat to oxidize the virtual connection, causing intermittent power outages, causing the computer to restart or the monitor to blink.

Solution:

① Don’t buy cheap but low-quality power strips in an attempt to save money. Buy some famous brand power strips, because they are automatically installed by machines. It's connected, no manual welding is used.

② As for whether the problem is a virtual connection inside the wall socket, we can try changing the host to a wall socket to see if the same automatic restart problem exists.

3. The power of the computer power supply is insufficient or the performance is poor

This situation is also relatively common, especially when we add new equipment to our host, such as replacing a high-end graphics card, adding a recorder, adding After the hard disk, it is easy to appear. When the host is working at full speed, such as running a large 3D game, performing high-speed burning or preparing to read a disc, and just starting up, the dual hard disk copy data may stop output due to power protection caused by insufficient instantaneous power supply, but due to the current After the power supply stops output, the load is reduced, and then the power supply starts again. Because the recovery time after protection is very short, the performance given to us is that the host automatically restarts.

Another situation is that the performance of the host's switching power supply is poor. Although the voltage is stable and within the normal allowable range, the excessive harmonic content in its output power supply will also cause the host to frequently fail. crash or restart. In this case, it is normal when we use a multimeter to test the voltage. It is best to replace it with a good power supply.

Solution: Replace with a high-quality, high-power computer power supply.

4. The mains plug of the host's switching power supply is loose, has poor contact, and is not plugged in tightly

Most of this situation will occur on DIY machines. The power cord of the host power supply has not passed 3C certification and does not match the power socket. Matching. When we shake the table or touch the host, the host will automatically restart, usually accompanied by a slight "pop" sound from an electric spark.

Solution: Replace with a high-quality 3C certified power cord.

5. The motherboard's power supply ATX20 socket has a weak solder and poor contact.

This kind of fault is not common, but it does exist. The main reason is to move the ATX 20-pin plug left and right when the host is working normally to see if the host will automatically restart. At the same time, check whether the reed inside the 20-pin power plug is oxidized, which can easily lead to high contact resistance, poor contact, and cause the host to crash or restart. Sometimes you also need to check whether the connecting wires at the end of the 20-pin plug are secure.

Solution:

① If the motherboard solder joints are weak, just use a soldering iron to repair them. Note: When welding computer boards such as motherboards, hard drives, graphics cards, etc., be sure to ground the soldering iron or unplug the power plug during welding.

② If it is a power supply problem, it is best to replace it with a good one.

6. CPU problem

When some functional circuits inside the CPU are damaged and the second-level cache is damaged, the computer can still start and even enter the normal desktop for normal operations, but when a special function is performed, it will restart or Crash, such as drawing tables, playing VCD, playing games, etc.

Solution: Try to block the second-level cache (L2) or first-level cache (L1) in CMOS to see if the host can run normally; otherwise, just use a good CPU to replace it. If it can run normally after being shielded, it can still be used. Although it is slower, it will definitely save money.

7. Memory problem

If a chip on the memory stick is not completely damaged, it is likely to pass the self-test (after all, most of them have POST set), but it will cause a problem due to the high heat generated by the memory during operation. Function failure and unexpected restart. Most of the time, when the memory is damaged, an alarm will sound when the computer is turned on. However, if the memory is damaged, the alarm will not alarm, and the problem of not powering on will still occur. It is best to use troubleshooting methods to quickly determine the fault location.

8. Optical drive problems

If the optical drive is internally damaged, it will also cause the host to start slowly or fail to pass the self-test, or it may suddenly restart during work. If the latter situation occurs after we replace the optical drive, it is most likely caused by the different power consumption of the optical drive. What everyone needs to understand is that although the ATPI interface of the optical drive is the same, the pin definitions of different manufacturers are different. If there is a problem with our hard disk cable, it may happen that there is no problem with a certain brand of optical drive, but it will not work with other brands. The brand-name optical drive cannot work, which requires everyone's attention.

9. There is a problem with the quality of the RESET key

If the RESET switch is damaged and the internal reed is always in the short-circuited position, the host will not be able to power on for self-test.

However, when the elasticity of the RESET switch weakens or the button on the chassis is difficult to pop up when pressed, it will occur during use because the chassis is accidentally touched or the host suddenly restarts during normal use. Therefore, when the RESET switch cannot be pressed freely, we must check it carefully. It is best to replace it with a new RESET button switch or lubricate the external button of the chassis.

Another situation is that the insulation layer of the RESET switch leads in the chassis is peeled off too much during welding. In addition, multiple unboxings during use will cause the RESET switch wires to be too close to each other. Collision, causing the host to automatically restart.

10. Automatically restarts when the network card or parallel port, serial port, or USB interface is connected to an external device

This situation is usually caused by a fault in the peripheral, such as the parallel port of the printer being damaged, a certain pin short-circuited to the ground, US < /p>

The computer restarts automatically and crashes slowly and cannot open files (fault caused by software)

About the application of Optimization Master and Magic Rabbit

(Go here to download: Windows Optimization Master 5.84 official version, ttpz/soft/267)

1: Use Optimization Master system cleaning and maintenance to clean up registration information (do not back up) and clean up junk files.

2: Open Optimization Master and find the files in BackupRegistry and delete them all

3: No need to back up the registry

4: Use the software to intelligently uninstall (delete) the software, which will delete it more cleanly. But it is necessary Note: When uninstalling (deleting) the software, it is best to check the content it searches for to be deleted, because sometimes it will accidentally delete things or even system files that should not be deleted. In this case, you should exit Optimization Master and wait. Delete it after a while.

5: Use its "Background Service Optimization" to perform background optimization. Set to enable automatic manual.

6: You can use the system disk doctor to check the disk condition. < /p>

7: It is better to use its "disk edge memory" to adjust virtual memory

8: Its default can generally be used

9: Use it to check system information Especially convenient.

10: Then use Super Rabbit Magic to set the point to clear garbage, click Clear Records and Clear Files (select all) and click Clear.

11: Click Rabbit Software and click Registry Optimization Clear the trash.

12: Click Utility Super Rabbit System Rescue Click Delete Backup Record to delete the backup record.

13: Click Super Rabbit IE Assistant to repair IE.

< p> Click Super Rabbit Repair Expert to repair IE

(Note: when using these two software, close all open programs)

My personal suggestion: generally use the above ones Don't use other functions. Using other functions will cause system failure.

The usage of Magic Rabbit is similar to that of Optimization Master. However, it is particularly good for repairing IE functions.

< p> 14: Open the browser, click Tools, click Inter Options, click Personal Information Auto-Complete, click "Clear Form" and "Clear Password" and click OK.

15: Open the browser, click Tools, click Inter (Options), click Set Points in Inter Temporary Files to move the folder, and transfer the Temporary Inter Files folder in the system disk to another hard drive. , click OK.

16: Open the browser, click Tools, click Inter (Options), click Security, Restricted Sites, Sites, and enter the following URL names respectively

3721/install/license Baidu Search for the companion Chinese Internet upgrade package Chinese mail Baidu.Inc, click Add, click OK, click OK.

17:2000 System right-click "My Computer, click Properties",

In "System Properties" "Click the "Advanced" tab in the window, then click the "Startup and Recovery" option, and remove the check in front of "Automatic Restart" in the "System Failure" box

18: In XP system, right-click "My Computer, click Properties, click Advanced Settings, and remove the check mark in front of "Automatic Restart" in the "System Failure" box.

19: Click Start, right-click My Computer, click Properties, click Advanced, click Error Reporting to disable error reporting

20: Go here: <1> it.rising/service/technology/tool (The name of the free popular virus killing tool)

<2>:/online.rising/Rising online anti-virus, free online virus checking.

21:2000XP system also needs to be upgraded with patches :Click Start, click Windows Update, click Automatic Update, click Driver Update