What happens when the computer suddenly goes black and there is no signal?

1. The data connection line between the monitor and the host is not in good contact. 2. The graphics card on the motherboard is not in good contact. 3. The graphics card on the motherboard is broken.

1) The connection between the desktop host and the monitor is not in good contact. (2) Poor contact between memory and memory slot, poor contact between graphics card and graphics card slot, resulting in black screen. (3) There is a problem with the graphics card.

A display is also commonly referred to as a monitor. A monitor is an IO device that belongs to a computer, i.e., an input and output device. It is a display tool that displays a certain electronic file on the screen through a specific transmission device and then reflects it to the human eye.

Solution: You can turn off the power first, open the compartment, dial out the memory, use the eraser to wipe the part of the gold finger (that is, where there is a copper sheet,) back and forth a few times, and then insert it back into the memory slot (or insert it back into the memory slot), it's OK, if there is an independent graphics card, you can use the same method to deal with the graphics card, and then insert it back into the graphics card slot, and finally install it, restart the computer and it's OK.

Check whether the computer parts are plugged in securely, check whether the monitor cable is plugged into the host interface, and then check whether the contact between the graphics card and the computer I-O slot is good; Confirm whether the monitor is damaged, if the monitor and graphics card are installed firmly, you can change to a normal monitor to give it a try, if the screen is no longer black, then the monitor is damaged.

It must be that the system has been messed up by you, and everything else is fine, so let's use disk defragmentation to get it.

Display wiring error is a problem often encountered by users, generally this kind of host has installed a separate graphics card, and many users have inserted the ** line of the display on the motherboard on the display interface, this is the wrong connection method, resulting in the computer can not be turned on normally, the display screen is black and there is no signal input.

The computer boots up and shows no signal and then a black screen.

A restart the computer, before the system enters the Windows boot screen, press the "F8" key. Remember to be sure before the system enters the Windows boot screen, otherwise it will be invalid. Some netizens have a high computer configuration, the system disk is a solid-state drive, and the speed of booting into the system is "millisecond", and the windows boot screen flashes by, and it is almost invisible.

So after the computer is turned off and restarted, we keep pressing the "F8" key, and we have to press it again and again, instead of holding it down.

bSelect Network Security Mode in the boot options menu that appears. Remember, if it is because of the failure caused by viruses and Trojans, directly choose the security mode to check and kill, but Tencent PC Manager - virus detection and killing, timely detection and killing is very important, because many of the current viruses and Trojans are using a large number of ** programs on the network, causing computer paralysis, so choosing the safe mode can avoid some viruses and Trojans using the network connection for malicious damage.

The main reasons for the black screen of the computer without signal are as follows:

1. Check whether the connection cable between the monitor and the computer is tightly installed, and it is recommended to re-plug the connection data cable, or replace the data cable. 2. The gold finger of the memory or graphics card is oxidized, it is recommended to remove the computer memory module, wipe the gold finger with an eraser and put it back 3. The video memory of the graphics card is soldered, the performance of the main chip is reduced, the BIOS of the graphics card is disordered, and the power control IC is problematic. 4. If there is a problem with the power supply, replace the power supply.

5. There is a problem with the boot circuit of the motherboard, as well as the virtual soldering problem of Io, Nanqiao, etc., it is recommended to repair the motherboard 6. If you can see the black screen of the English letters after booting, the system is generally broken. In this case, the system will need to be reinstalled.

Hello dear, solution: 1. If the data cable connection between the computer host and the monitor is loose, it will also cause no signal to be transmitted to the monitor, then check whether the ** cable on the monitor and the computer host is not plugged in. 2. Usually the motherboard will "beep" after the computer is turned on to prompt the boot success, indicating that the boot self-test is completed, that is to say, you can hear a "beep" sound to indicate that there is no problem with your motherboard, and the display signal, it is likely to be caused by the loose or damaged independent graphics card, it is recommended to replace the graphics card, connect the VGA data cable to the replaced graphics card interface to see if it can be displayed; 3. If you don't hear a "beep", then it may be caused by poor contact between the memory module and CPU on your motherboard. 4. Many computer motherboards will not have a prompt sound when they are turned on normally, for this kind of motherboard, as long as they look at whether the fan is turning after turning on; 5. If there is a sound after turning on, but the monitor has not responded, and there is no "no signal" prompt, then in addition to the possibility of loose VGA cable, it is likely to be caused by damage to the power cord, power supply or circuit board in the display, then you can only replace the power supply, if it is still not possible, the display is broken; 6. For no sound after booting, if there is no sound when the device is turned on before, it can be turned on normally, and now the black screen is a black screen without any prompt when the display is switched on and off, it may be a problem with the power cord or power supply, and it can only be eliminated by changing the power supply or power cord, if there is a prompt "no signal", then it is a problem with signal transmission between the motherboard and the display; Hope it helps.

No signal black screen solution for computer:

1. Check whether the display data cable is connected or loose. If it is a newly installed computer, the first time it is turned on, the host is operating normally, but the display screen is black and there is no signal, first you need to check whether the power of the display is turned on, whether the display is turned on, and you can look at the power indicator of the display. If the monitor is connected to the power core, and the core is turned on, check whether the data cable between the monitor and the computer is connected properly.

2. Check whether the display data cable is installed correctly. Many new travel computers, because the motherboard and graphics card are the first interface, for independent display users, if the display data cable is connected to the motherboard** interface, this problem will occur. You'll need to connect the monitor cable to the discrete graphics card** connector in the console.

3. If the keyboard indicator is not lit, press the "num" key or the "numlock" key on the keyboard and there is no response, it may be that the memory is loose or the memory gold finger is oxidized, you can try to change the computer to shut down and power off first, and then remove the memory module, and then clean up the gold finger, and then reinstall, you can also try to install it in a different slot.

4. Motherboard BIOS error or static electricity will also cause this problem, we can try to restore the BIOS settings to factory settings, we will remove the button cell battery from the motherboard, put it for a few minutes, and then install the button battery in place to restore the initial value of the BIOS. It is also very simple to remove the button battery, pull the buckle outward, and the button battery can be automatically ejected, and you can remove it directly. If you can't see the coin cell battery on the motherboard, it may be blocked by the discrete graphics card, please remove the discrete graphics card and operate it again.

There can be a number of reasons why your computer suddenly goes black and there is no signal, here are some possible solutions:

Check the power connection: Make sure that the computer's power cord is securely connected and that the plug is not loose or disconnected. You can also try plugging the power cord back in to make sure it's connected properly.

Check the monitor connection: Make sure that the data cable of the monitor (usually HDMI, DVI, VGA, etc.) is firmly connected to the graphics card slot of the computer. You can try plugging the monitor cable back in and out to make sure it's connected.

Check your graphics card connections: If you're using a discrete graphics card, not an integrated one, make sure the graphics card slot and power supply are securely connected. Sometimes the graphics card may slack and crash, resulting in no signal issues.

Check Display Input Source: Make sure the correct input source is selected for the display. Some monitors may have multiple input options, such as HDMI, DVI, or VGA, confirming that the correct input source is selected.

Restart your computer: Sometimes a black screen with no signal can be caused by a software or driver issue. Try pressing and holding the power button for a few seconds to shut it down, and then restart your computer to see if the problem resolves.

Check for hardware faults: If none of the above methods resolve the issue, it may be caused by a hardware fault. It could be a graphics card failure, a memory failure with a search, or a motherboard issue. In this case, it is best to contact a professional computer repair technician for overhaul and repair.

Please note that the above methods are for reference only and are not guaranteed to solve all problems. If the problem persists, it is advisable to consult a professional computer repair technician for further troubleshooting and repair.

Overheating, wait for 10 minutes to open again, can open the album is overheating, you need to change the CPU or the silicone grease of the dust card.

Memory failure. The motherboard is broken.