The console turned on and there was a sound but nothing was shown on the screen

See if the keyboard light is flashing on all three lights If so, the memory is loose, unplug it and erase it with an eraser.

If the memory is fine, take the graphics card down and wipe it.

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. If it still doesn't work, you can only replace a memory module.

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.

The monitor is not bad, but there is no signal display, and the host is working.

However, the operation is not normal, it is recommended to change the power supply first.

The display does not receive a signal, and of course it will not be displayed.

Exclude them one by one.

First of all, check whether the external wiring of the computer is connected, and plug each cable back in to see if the fault is eliminated.

If the fault persists, then open the main chassis to check whether there is any excess metal in the chassis, or a short circuit caused by the deformation of the motherboard, and smell whether there is a burning paste in the chassis, whether there are burned chips on the motherboard, and whether the capacitors around the CPU are damaged.

If not, clean the motherboard from dust and check if the computer is OK.

If the fault persists, unplug the reset cable on the motherboard, connect it with other switches and indicator lights, and then use the change cone short-circuit switch to see if it can turn on.

If it can't be turned on, then use the minimum system method, unplug the data cable of the hard disk, floppy drive, and optical drive, and then check whether the computer can be turned on. Then connect the above devices to the computer one by one, when connected to a certain device, the fault will recur, indicating that the obstacle is caused by this device, and finally focus on checking this device.

If the memory, graphics card, CPU and other devices are normal, then discharge the BIOS, use the isolation method, place the motherboard outside the case, connect the memory, graphics card, CPU, etc. for testing, if the computer can be displayed, then install the motherboard into the chassis for testing until the cause of the fault is found. If the fault persists, you need to return the motherboard to the manufacturer for repair.

When the computer is booted up, the system BIOS starts to POST (power-on self-test), and when a fatal error is detected in a device in the computer, it controls the speaker to send out a sound to report the error. Therefore, there may be a fault that the power is turned on without displaying an alarm sound. If the computer is turned on and there is no alarm sound, the fault can be checked according to the meaning of the BIOS alarm sound to check the faulty device to eliminate the fault.

What happens when the host keeps ringing after the computer is turned on, but the display screen doesn't respond?

What happens when the host keeps ringing after the computer is turned on, but the display screen doesn't respond? Hello dear! A little bit of troubleshooting.

1. If the power light of the monitor is on, and the monitor does not respond to pressing the menu button, then there is a problem with the display panel. There is no way out of this situation, you can only find a repairer; 2. If the power light of the monitor is on, and the display menu comes out, it means that it is a problem with the ** line or graphics card. In this case, change to the sail slow root ** line to check, if it is useless, continue to look down.

If you used the independent display before, then pull out the independent display,**The cable is connected to the motherboard and turned on to try,If you used the integrated display before, you find a borrowed card to repair the computer, and try to see if it can be lit; 3. If the power light of the display does not light up the pure mode, then there may be a problem with the whole internal display, or the power cord is not plugged in. Plug in the new line and try it, if you don't need to change the monitor. Hope it helps!

1. When the display screen is not turned on, there is a color bar moving in the color of the color eggplant, which means that the display itself is detected normally, which is good.

2. After the host is turned on, the display screen is black and there is no image, which means that the signal has come, but it cannot be displayed normally.

Detailed explanation of the motherboard alarm sound.

1. "Didi...""Continuous short tones.

In general, it is common for the host computer to have a power supply problem.

However, this is the case on some types of motherboards from Intel and Gigabyte, if the system has a "tick tick..."A continuous short beep is not a power failure, but a memory fault alarm, which needs to be noted.

2. The sound of the ambulance "Woo la Woo La" is accompanied by the sound of the start-up captain non-stop.

This situation is the system alarm sound of CPU overheating, mostly because of dust removal for the inside of the host, cleaning the CPU radiator or because of replacing a new CPU fan, because the installation is not in place, the CPU radiator and the CPU are not in good contact, there is a certain space or there are debris added in between, resulting in the heat emitted by the CPU can not be dissipated normally, and the CPU is as high as 80-90 as soon as it is turned on.

3. "Di..."Tick....", a continuous interval of long tones.

This is the sound of the memory alarm, which is generally due to loose memory, poor contact between the gold finger of the memory and the memory slot, oxidation of the gold finger of the memory, and failure of a chip in the memory.

4. "Tick...", Didi" is a long and two short continuous chirps.

This is a graphics card alarm, usually the graphics card is loose, the graphics card is damaged, or the power supply part of the graphics card of the motherboard is faulty.

5. There is no movement after the two long tones of "toot", and after a while, you will hear the sound of "squeaky squeak" reading floppy drive.

If there is an image display, it will indicate that the system will boot from the floppy drive and is reading the floppy disk. If there is no floppy disk in the floppy drive, the system will prompt that no system cannot be started, and the system is suspended.

6. When pressing the three keys of "Caps Lock" and "Num Lock" and "Scroll Lock" under the win system, the PC speaker of the host has a similar key sound of "Di" in the potato book.

7. A short "tick" sound.

In general, this is a prompt sound that the system self-test has passed and the system has started normally. However, when some motherboards pass the self-test, there is no such prompt sound, and there is no sound at all. Also note that some motherboards may take a long time to self-test, and will wait five or six seconds before hearing a "beep" sound, which requires a bit of patience.

<> the computer rings but the screen does not display, it may be a problem with the monitor, check whether the power cord and data cable are loose. It is also possible that the graphics card is faulty, and the discrete graphics card is the most prone to problems, remove the graphics card, and then use a brush to clean the dust from the card slot. If it is not already, clean the inside of the case from dust and check the cooling fan for lack of oil, add oil, and then reapply silicone.