After a frequent restart, the monitor does not show up

Is your monitor LCD? If so, it may be that the electrolytic capacitor on the motherboard is burned out, just open the case and take a look. If it is a CRT monitor, then Kenneng is that the picture tube is burned out by moisture, and there is a wiring problem inside, so you can repair it.

Turn on the air conditioner, it's too hot to do this.

Yours is an assembly machine.

I'm only 13 pairs of them.

The computer is broken, and I don't know exactly what it is! You can only bless the CPU, don't burn out the motherboard! It's best to take it to the maintenance department, because your machine is not software broken, but hardware is broken!

If the hardware is broken, it is rare for an individual to fix it! Now that the hardware is broken, I want the hemp to take it to the warranty, and I want the hemp to replace it directly!

Do you burn the CPU or memory, your situation seems to be the CPU hanging.

Remove it and try it on someone else's computer, and the problem of restarting may be that the power supply is unstable, or the CPU temperature is too high (pay attention to heat dissipation in summer), and memory problems will also cause restart.

The CPU fan is turning, indicating that the +12V power supply is unharmed; There is no "beep" sound when the machine is turned on, which means that the self-test is not completed;

Unable to self-test, it is generally a problem with the motherboard, LCD (liquid crystal display) will not cause the motherboard to burn, and the suspicious fault point is:

1. The power supply circuit of the CPU (+ faulty, generally the three-terminal voltage regulator tube (10 yuan) is damaged, emitting a burnt smell;

2. +5V filter electrolytic capacitors (elements) are broken, broken, and burned, emitting a pungent odor;

The landlord had better borrow a host power supply to try it, if the fault is still there, it is a problem with the motherboard;

If it is the above problem of the motherboard, the maintenance ** is about 50 yuan (spare parts plus manual costs).

1. It has nothing to do with whether the operating system is poisoned. It is mainly caused by hardware (power supply, motherboard, and graphics card), which will automatically restart when it reaches the step of reading the operating system. The second is caused by a problem with the switch of the chassis.

2. Unplug the power cord from the hard drive. Then test and troubleshoot. Frequent power failures and reboots make the hard disk prone to bad sectors.

A small number of such phenomena are hard disk failures (motors or circuit boards), but they should also be placed at the end, confirm other OK first, and then power on the hard disk (in this case, if it is a problem with the hard disk, you will know it at once).

3. Remove the side panel of the case, unplug the switch between the case and the motherboard, and the wire of the restart button. Then connect the two pins of the switch directly with tweezers (there is a definition on the side of the pin, which says poweron or pwron, regardless of plus or minus).If this is also a fault, you can troubleshoot the chassis switch.

4. Replace the power supply and see. What brand is your power supply and what is the rated power mark? Many of these phenomena are caused by miscellaneous inferior power supplies.

5. If you change the power supply and it still fails, change the graphics card.

6. If the graphics card is still faulty, pull out the memory stick, and wipe the gold finger with an eraser or alcohol (to remove oxidation).Then wipe the gold finger in the memory slot of the motherboard.

7. If you have tried all of the above and the fault is still there, it is the motherboard. It is most common for the regulated power supply part of the CPU to be damaged, resulting in a sudden power failure or failure to power on after powering on.

Another reason is that there is a problem with the heatsink of the processor or graphics card (for example, there is too much dirt), and your case is not convection, and it is too hot inside, causing the processor or graphics card core to start self-protection and restart. If the machine suddenly restarts during work, the side panels should be disassembled immediately and the radiator should be touched to see if it is hot. You can know.

1. Pay attention to the static electricity before plugging and unplugging the hardwareDisconnect the connector behind the chassis power supply (complete power outage).

2. If you feel that the above elimination method is very troublesome, or you have no experience in operation, then send the whole machine to the computer city to find a repair computer.

Tips: Go to a few more computer repair companies, ask what is the fault (usually the other party will not say), and how much does it cost to repair? Choose the one with less money to repair it so as not to be slaughtered.

If one says that the graphics card or motherboard is broken and needs to be replaced, you don't need to fix it, go to another home to see it. If that one says the same, then it's really going to be replaced, and if the other one doesn't say it's going to replace the hardware, then the previous one wants to hack you.

It's definitely not a system poison, how can the virus run before it enters the system?? It's very simple to see if the restart button is broken, you pull out the boot and restart jumpers, and use the conductor short to see if it returns to normal.

Is it caused by the fact that when you turned on the machine, you pressed the button to turn on the case and didn't bounce back.

It's not a system problem, but a general system problem that can only be determined to be a system problem when the operating system scrollbar appears.

Your problem is obviously that the first step of the computer boot hardware self-test has not passed, and there are generally only two situations in the repeated self-test and repeated restart, one is the power supply problem, the other is the problem of the motherboard bridge, it is recommended to find the person who repairs the computer to test it.

If the problem of the power supply is easy to do, it is OK to change one, it is not expensive, it is a problem with the motherboard, and I don't mind if I can repair it in time, because this kind of problem is generally a bridge problem, and it won't take long to repair it and it will be broken, just replace a motherboard directly.

When the system files are corrupted, such as the fonts under Win2K and the Win98Fonts directory, the basic files are corrupted, and the system will be forced to restart because it cannot complete the initialization when it starts. You can do an experiment and try to change the name of the font library "fonts" in the win98 directory. When you turn it on again, our computer starts up repeatedly.

For this kind of failure, because there is no access to the normal desktop, you can only overwrite the installation or reinstall.

3 Timing software or scheduled task software works.

If you set up in the Schedule Taskbar to restart or load certain workers, the computer will start up again when the scheduled time comes. In this case, we can open the "startup" item, check whether there are any executable files or other scheduled workers that we are not familiar with, block them and then boot them to check. Of course, we can also directly enter the "msconfig" command in "Run" to select the startup item.

2. Hardware. 1. The mains voltage is unstable.

Generally, the switching power supply of home computers works in the voltage range of 170V 240V, and when the mains voltage is lower than 170V, the computer will automatically restart or shut down. Because we sometimes don't feel the fluctuation of the mains voltage, we mistakenly think that the computer will restart automatically for some reason.

Solution: For areas where the power supply is often unstable, we can purchase a UPS power supply or a wide switching power supply of 130 260V to ensure the stable operation of the computer.

2 Poor quality of the plug strip or power socket with poor contact.

Most of the power sockets on the market are of poor quality, and the internal contacts are manually soldered, and acid flux is often used, which can easily lead to the oxidation of the solder joints in the future use and cause circuit breaking or leakage between the live wire and the neutral wire. Because of manual welding, and because of the poor elasticity of the phosphorus brass sheet used, it will not take long to lose its elasticity, resulting in poor contact with the power plug of the host or display and produce a large contact resistance, and a large amount of heat will be generated during long-term work, resulting in virtual connection, which will be manifested as the host restarting or the display black screen flickering.

There is also a possibility that the wall socket used in our home, most of the wall sockets are not installed by professionals, so the wiring inside the socket is very non-standard, especially if these sockets often use high-power electric heaters, it is easy to cause internal heating and oxidation to form intermittent power failure, causing computer restart or monitor blinking.