My computer boots up with a knock 20

It's a dripping sound... The bang may be a power failure...

The sound is made after entering the system--- that may be your login**,Change the theme, right?

It's normal to have a short name when you turn it on.

It should be a system error or missing system files or something, and the system should not ring when you reinstall it.

I don't know if you're talking about the boss prompt sound! Don't you make it clear! Can it still be turned on?

If it still turns on, you can reinstall the system and you're good to go! If it can't be turned on and there is a warning tone, it is a hardware problem! Generally, some memory, graphics card, network card, sound card, etc. are not plugged in, or damaged, remember to clean up regularly in several cases!

Different BIOS,"Toot"The meaning of sound is also different. Listed below are the POST sound information for two common BIOS.

1. AMI BIOS

1 Short sound, memory refresh failed.

2 short sound, memory ECC check error.

3. Short sound, the self-test of the system basic memory (the first 64k) failed.

4. Short sound, the system clock is wrong.

5 short sounds, CPU error.

6 Short sound, keyboard controller error.

7. Short sound, the real mode of the system is wrong, and it cannot enter the protection mode.

8 Short sound, showing memory error (e.g. showing memory corruption).

9 Short-sound, motherboard flash ram or EPROM verification error (e.g. BIOS corrupted by CIH).

1 long 3 short sound, memory error (e.g. memory chip corruption).

1 long 8 short sound, display system test error (such as poor contact of the monitor data cable or graphics card).

2. Award BIOS

1 Short sound, the system starts normally.

2 short sounds, regular errors. You should go to CMOS Setup and reset the incorrect options.

1 long 1 short sound, RAM or motherboard error.

1 long and 2 short sounds, display or graphics card error.

1 long and 3 short sounds, keyboard controller error.

1 long 9 short sound, motherboard flashram or eprom error (e.g. BIOS corrupted by CIH).

Uninterrupted long"Toot"sound, the memory is not plugged in properly or the chip is damaged.

The monitor is not properly connected to the graphics card.

Repeat short"Toot"sound, the power supply is faulty.

None"Toot"There is no display at the same time, and the power is not connected.

Clean up dust (graphics card, memory, motherboard, etc.).

Unplug and reinsert memory modules, graphics cards, sound cards, etc.

If it doesn't work, it is estimated that there is hardware damage.

It's normal to have a crisp prompt sound when you turn it on, and it's the prompt sound of electric shock from the light-emitting diode inside.

Problem analysis: The sound you hear may be the sound effect in the sound scheme of the computer system, which corresponds to the occurrence of a certain system event and plays a role in prompting. Of course, it could also be the sound of an app such as QQ or a web advertisement.

Solution: 1. If it is a system sound effect: take Windows XP system as an example, its operation is as follows:

1. Click: Start - Settings - Control Panel, double click to enter the sound and audio device;

2. Select the "Sound" tab, if you need to cancel the sound effect, select "Silent" in the "Sound Scheme", and then confirm to exit. If you need to modify it, select the sound corresponding to the program event and save it as a self-named sound scheme.

Second, if it is an application sound effect: take QQ as an example, other applications operate similarly.

1. Right-click the QQ icon on the desktop taskbar, select Open Main Panel, and click to open System Settings;

2. In the Basic Settings tab, find the sound item and check "Turn off all sounds", or click "Set Prompt Sound" to modify the sound effect you need.

3. Web advertising sound: 360 Security Guard can be used to regularly carry out Trojan horse killing, computer cleaning and optimization acceleration to remove all kinds of illegal or advertising plug-ins and boot self-start programs, and 360 Security Guard also comes with the function of blocking pop-up ads. If you are browsing the web, it is recommended to use a 360 browser or a similar non-IE kernel browser, and install a plugin such as Ad Terminator, which can effectively remove web ads and pop-up ads.

Crying stands for different meanings.

AMI's BIOS self-test bell and its significance.

1 Short: Memory refresh failed. Replace the memory module.

2 Short: Memory ECC verification error. Setting the memory option for ECC check to Disabled in CMOS Setup will solve the problem, but the most fundamental solution is to replace a memory.

3 Short: The system basic memory (the first 64kb) check failed. Change memory.

4 Short: The system clock is wrong.

5 Short: Processor (CPU) error.

6 Short: Keyboard controller error.

7 Short: The system is in real mode and cannot be switched to protection mode.

8 Short: Displays a memory error. If there is a problem with the display memory, try changing the graphics card.

9 Short: ROM BIOS check and error.

1 Long 3 Short: Memory error. If the memory is damaged, it can be replaced.

1 Long 8 Short: Displays test errors. The monitor cable is not plugged in properly or the graphics card is not plugged in properly.

High Frequency Constant Ringing: CPU Overheating Alarm.

The BIOS self-test bell of the award and its significance.

1 Short: The system starts normally. This is something we hear every day and it also shows that there is nothing wrong with the machine.

2 Short: General error, please go to CMOS setup and reset the incorrect option.

1 Long 1 Short: There is an error with the RAM or motherboard. Try to change the memory, if it still doesn't work, you have to change the motherboard.

1 Long 2 Short: Wrong monitor or graphics card.

1 Long 3 Short: Keyboard controller error. Check the motherboard.

1 Long 9 Short: Motherboard flash RAM or EPROM error, BIOS corruption. Try a different block of flash ram.

Constant ringing (long sound): The memory module is not plugged in tightly or damaged. Reinsert the memory module, if it still doesn't work, you have to replace it.

One piece of memory. Ringing: The power supply and monitor are not properly connected to the graphics card. Check all the plugs.

Repeated short rings: Power supply issues.

No sound, no display: Power issue.

Hard drive ringing? Or a fan? I'm using a radiator now, and I'm not afraid for more than ten hours a day.

Now that the weather is so hot, your book also has to cool down, and you still have to work on it, not only to work overtime during the day, but also to work overtime at night and stay up late, it will definitely not be able to stand it, so you have to treat it well and cool it down, so that it won't shout!

Is it that you can't get into the system, it may be a motherboard or hard disk problem.

Old Ben, right? The sound of the hard drive, plus the processor may be too slow.