What is the reason why the computer suddenly loses power after entering the system for a few minutes?

1 There may be a problem with the BIOS settings. Enter the BIOS to restore the default settings or take out the motherboard battery, reversely buckle the discharge, and wait for 5 minutes for reverse installation. Objective To restore the BIOS settings to the default values and eliminate the phenomenon that the BIOS cooling preset automatically restarts or closes.

2. Memory reasons. When the memory is in loose contact with the motherboard slot, it may also cause the computer to shut down automatically. It is recommended to check whether the memory is tightly inserted in the motherboard. Then use the exclusion method to check the memory, graphics card, CPU CPU fan, motherboard and so on.

3. Poor heat dissipation. Due to the influence of weather temperature or insufficient revolutions of CPU fan, the system is overheated, which will lead to the automatic shutdown of the computer. It is recommended to check whether the system temperature is normal. Methods of removing dust from components in computer mainframe and troubleshooting. Dust is also one of the factors that lead to the failure of computer automatic shutdown. Dust can lead to aging of parts, oxidation of pins, poor contact and short circuit. For these faults caused by dust, cleaning methods are generally more effective.

4. Software factors. If the computer automatically shuts down when using the application sequence software, the automatic shutdown fault may be caused by the sequence software. Generally, the program software can be uninstalled. Computer shutdown caused by virus or Trojan horse is also a recent popular shock wave, which will lead to system restart and shutdown. If you are using Window 2000 or Window XP system, I suggest you patch the shock wave in time after using antivirus software. The general problem can be solved.

5. Power supply problem. Insufficient power supply is also an important factor leading to the automatic shutdown of computers. The power supply is of poor quality, aging or low power, which can not meet the power supply requirements of various computer accessories. High-power and high-quality power supply is unlikely to be replaced.

6. Check the motherboard. Motherboard aging, capacitor failure or Explosicum, motherboard power pin, motherboard and chassis backplane short circuit may lead to automatic shutdown. Take the motherboard out of the chassis for inspection or testing, then check whether the CPU fan rotates and the CPU temperature is normal, and then check whether the silica gel at the bottom of the CPU fan heat sink is dry. If it is dry, clean the silica gel on the CPU fan, and then repaint it with good silica gel. If the fan is not normal, replace the CPU fan.

7 It may be that playing large-scale games causes the CPU to overheat, and the CPU fan will automatically shut down if it is not cooled well. If there is an automatic shutdown fault, it is recommended to replace a high-quality CPU cooling fan. Is the silicone at the bottom of the fan cooling fin dry at high speed? If it is dry, clean the silica gel on the CPU fan, and then reapply the good silica gel. If the game software causes the automatic shutdown, please uninstall and reinstall.

8. The graphics card itself. 1 video memory is damaged. This phenomenon is very easy to happen if the video memory of the graphics card is damaged. Even if you don't crash, you will frequently report errors after playing 3D games for a period of time. If this happens, you'd better try replacing it with a good graphics card. 2 the circuit or chip of the graphics card itself is damaged, which leads to failure, and we also try to solve it by replacing it.

9.AGP cell voltage is insufficient. The reason is that the voltage is unstable, which may lead to insufficient power supply of AGP slot and instant crash when playing 3D games. So you should first check whether your power supply is sufficient or whether the power supply line is stable, or you can try to adjust the AGP voltage in the BIOS, which is generally 0. 1V, but not too high, otherwise it will be very dangerous.

10. System software problem. 1 Check whether your motherboard patch and graphics driver are correct and whether the graphics driver is damaged. If there is a crash problem, try to change the motherboard patch or graphics driver first. Pay attention to whether it is the latest or the best. Try typing a driver or patch in the CD that came with your hardware. 2 Check whether directx file is damaged or the version is too low, and enter DXDIA G command to run directx diagnostic sequence. 3 Check whether hardware acceleration is turned on. Clean up the junk files of the system. If not, try reinstalling the system.