When my computer was plugged in, there was a sudden bang, and then it wouldn t turn on

Little dreams. This is a problem of electrical failure.

The first thing you need to do is check your socket to see if there is still electricity.

If there is still power in the outlet, your monitor and main unit should be plugged into it. See if the light on the monitor is on. If the display is on. That is, the socket electricity is no problem. You can also swap a few plugs and check it.

If the socket is completely fine you do.

Put the power plug behind the monitor. That is, the same power plug as the rice cooker is unplugged. Then unplug the mainframe plug as well.

Replace the power plug of the monitor to the main unit. See if the host can run. Don't look at the monitor. It depends on whether the host is functioning or not.

If it starts working. You pay attention to whether the host will send it out"Drip. Drip. Drip. "sounds. Normal start-up is generally a single sound"Drip. "That's a hardware check, fine. If the drip doesn't stop or is too much, then your hardware may be burned out.

If the main engine is still not working after changing the power plug, it means that the main engine is burned. You have to send the computer repair there to check.

Generally, if the host is burned, the first thing to burn is the power supply in the host. You have to change or fix it. It costs dozens of dollars to change one.

If it still doesn't work after changing the power supply, it means that the computer motherboard is burned. That's serious. If the motherboard is burned, your entire computer will be destroyed. To be thoroughly examined. The motherboard is burned graphics card. CPUs are susceptible to burning. You can buy a computer when you change it.

Note: When you go for repair, it's best to find someone who understands computers to check it for you on site. People who know computers generally know a little bit about hardware maintenance. Maybe he'll get it for you.

If that doesn't work, ask him to remember what you're doing on the console. Because the computer repair traitor will see that you don't understand the computer, and replace your configuration for you. Or change the old one or change the lower gear.

I've explained it in detail enough, little dream.

Cause: Electrical malfunction. Solution: Check whether the socket is still powered, if there is electricity, it should be a host problem, go to the computer store to repair it.

Cause: The chassis power supply is broken. Solution: Buy a power cord and replace it.

Reason: The CUP fan fell off. Solution: You must check the inside of the host, take it to the computer company and repair it quickly.

Cause: Computer poisoning. Solution: Mobile phone antivirus software can be used to kill and disinfect.

This fault phenomenon is called power fryer or burn-in, and it is generally caused by these three places where the problem is:

1. Electrolytic capacitor fryer, electrolytic capacitor aluminum foil breakdown, the internal temperature of the capacitor rises rapidly, resulting in capacitor fry.

2. The computer is used for a long time, which exceeds the service life of the electrolytic capacitor, the electrolyte is dry and solid, the capacity is reduced, and the circuit spike increases, resulting in capacitor damage and capacitor explosion;

3. The power supply ventilation failure and the temperature rise, resulting in high temperature damage to the MOS pipe and causing the fryer.

It is recommended to replace the power supply, pay attention to let the computer work intermittently, I hope it will help you.

If the laptop can't be turned on with either plugged in or with the battery, and there is no response when you press and hold the power button to force it to shut down and turn it on again, most of which are hardware failures.

There are many possibilities that cannot be turned on, such as chipset, IO chip, memory, CPU, motherboard small component failure may lead to not booting, it is recommended to take the computer to the after-sales service or computer repair shop for testing and maintenance.

The charging port keeps ringing when plugged in, it is recommended to replace the number of power books, or you can go to the official after-sales test of the notebook.