The computer restarts repeatedly, but it just doesn't turn on. What should I do?

My old desktop has experienced this situation several times, so I will tell you how to deal with it with my own experience. There are two possibilities for this computer to restart repeatedly, hardware problems and software problems.

Software problems, generally, are system crashes, and various driver errors cause the system to fail to load. , causing the computer to restart all the time and enter an infinite loop. At this time, there is no other way but to reinstall the system to solve the problem, which is also one of our most commonly used methods.

The second is the hardware problem. This hardware won't start for several reasons. Let me tell you one by one.

First of all, the memory stick problem.

Because of operating the computer for a long time, the insertion port of the memory card has entered a certain amount of dust or the memory card is loose, resulting in some poor contact. The solution is actually very simple, that is, open the chassis, pull the memory card out of the slot, clean it with a brush, and clean the card slot with a brush. You can also use the weak wind of the hair dryer to blow. Do not use wet towels or touch any water. Remember, then just insert the memory card back into the slot.

Second, the power supply problem.

Unable to boot because of power problem. Simply put, the power supply is insufficient to drive the computer to run. There is no good way to do this. There is no other way but to replace the power supply. Fortunately, the power supply of the computer is not expensive. You can buy one for two or three hundred, and you don't have to feel so bad about changing another one.

Third, the motherboard capacitor is burned.

This happened to me. I checked all the other hardware of the computer, and there was nothing wrong with it, but I just couldn't start it successfully. Finally, the repairman checked the motherboard with an electric pen and found that two capacitors were burnt out. Just weld a new capacitor. Is it expensive to change a capacitor? NONONO, I only spent 50 yuan for two capacitors and working hours. As shown in the above figure, the capacitor is burnt out and there are obvious bumps.

Fourth, the CPU is overheated.

This situation is most common in summer. The computer suddenly shut down automatically after a few hours and could not be successfully started. Although there are CPU fans and power fans blowing inside the computer, it is still impossible to avoid overheating of the CPU. The solution is also simple. Just let the computer rest and cool down. If you have money, you can buy a water-cooled chassis to ensure that the CPU will not overheat.

The above is the basic situation I have contacted, because all I have encountered are my own computers. Check the hardware problem first. If there is nothing wrong with the hardware, it must be the software. If not, take it to a professional computer repairman and pay someone to help you fix it. After all, people are professionals. Work a few more hours, the money will come out, and you will save trouble and spend money to solve the problem.