Why is the host still buzzing after the computer is shut down?

1.There are many reasons why a computer cannot be turned off, and here are the following situations and how to deal with them.

1) The automatic shutdown program in the system file is defective. In order to determine whether this is the cause, the following experiments can be performed. In Start Running, enter the command: , exitwindows" and see if it shuts down properly. If you are using a win98 system, please check the integrity of the system files and patch the files in "Start Program Attachments System Tools System Information Tools System File Checker". If a different system (ME 2000 XP) is used, file patching can also be done in the corresponding project.

If patching the file still doesn't solve the problem, you can only reinstall the system. If you can't shut down normally by running "rundll32, exitwindows", it may be that some system programs in the system are defective, but the solution is still to patch the system or reinstall the system;

2) Viruses and some defective applications or system tasks may cause shutdown failure. First of all, check for viruses and close all applications before shutting down the computer. Because some applications are loaded at system startup, you can use the command in the Startup menu (in Start Running:

msconfig"), in order to see if there are any files that affect the shutdown (of course, they will not take effect until they are restarted);

3) Peripherals and drivers are not compatible well and cannot respond to rapid shutdown. You can enter the command "msconfig" in Start Running, select "Advanced" in the "General" tab, and "Disable Rapid Shutdown" in the window that opens.

If you suspect that the peripherals are faulty, you can also uninstall the peripherals one by one to check them so that you can find the affected peripherals.

2.If the computer fails to shut down and is stuck, press and hold the power button to force it to shut down.

How could it be! It should be the noise of the speakers! Or the AC sound in the power supply of the case, you first unplug all the power plugs to see. If it's good, it's the reason why there is still a 5 volt standby voltage inside the power supply after the XP is turned off.

The simple solution is: power off - power off (pull the power plug).

The professional way is: check the motherboard to see if there is a problem with the power circuit.

Because. Before it shuts down completely, the system processes some other processes in the background.

You're turning off the monitor, right?! Haha

<> the hum of the host computer may be a problem with the following parts: CPU fan, graphics card fan, power supply fan, optical drive, or hard disk, so it needs to be troubled and fixed according to the characteristics of different parts.

When the host is buzzing, the main sound is the CPU fan, the graphics card fan and the power supply fan, of course, the parts that make the sound are the optical drive, hard disk, etc., but the sound of these two hardware is very small, if it is very large, it is estimated that the optical drive and the hard disk will be broken.

To determine which hardware is ringing, it is recommended to check it using the following methods:

Flip open the side cover of your computer case, leave your computer open, and listen with your ears to see which hardware heatsink is coming from the buzzing sound. The main point is to listen to the three primary hardware of the CPU cooler, the graphics card cooler and the power supply.

CPU fans, graphics card fans, power supply fans, and other hardware can be heard in the following ways:

First, ash cleaning.

Second, add lubricating oil, these cooling fans have no lubricating oil or the lubricating oil is very viscous, which will also have a great impact on the fan, resulting in sound.

Third, the computer fan in the case is not installed firmly, and the vibration generated when the fan rotates causes the case to suddenly become louder, so it is recommended to tighten the fans of each radiator, and at the same time check whether the wiring in the case is reasonable.

Fourth, the resonance of the radiator can also produce noise, but not every computer will produce resonant noise, and the way to eliminate resonance noise is actually very simple, adjust the position of the case or add some soft pads.

Fifth, if the above methods are not working, it is recommended to replace the radiator with better silent effect and better heat dissipation performance.

1. The speaker I just bought, connected to the laptop, the speaker does not have any noise when the computer is turned on, there is a lot of noise after shutting down, unless the audio cable or speaker power cord is pulled out, it keeps ringing, and the noise decibel is not low, why is this?

2. In fact, the laptop is turned off but the computer is still running, which is equivalent to a standby state, so the computer will still have a signal output, so there will be different decibel sounds.

3. But sometimes as soon as the computer is powered on, the speaker immediately quiets down, why is this?

4. Because the computer is powered on, there is a work order, so the hardware inside will not run in an irregular state, which is a normal phenomenon, and it is not a problem and you don't have to worry about whether the computer or audio you just bought is broken, no, this is a phenomenon of audio interference.

5. The best solution is not to power up the stereo, which is actually very simple.