The computer host can turn on the monitor but does not respond

The computer is arguably one of the greatest inventions of our time. It plays an increasingly important role in our production and life. Now computers have also entered thousands of households and become one of the necessary electrical appliances for every household.

Since it is an electrical appliance, some problems will arise. Computers include mainframes, monitors, and peripherals. The failure of any one of them can affect the operation of the entire computer.

If the computer's host computer boots normally, but the monitor doesn't respond. The first should be a malfunctioning display. The monitor is one of the important parts of the computer, if the monitor cannot start normally, then it is likely that the monitor has failed and the computer's monitor needs to be serviced; Secondly, the cable connecting the main unit to the monitor is loose.

If the power indicator of the monitor is not lit, it is likely that the cable between the host and the monitor is loose or has fallen off, and you need to check whether the cable is connected normally; Finally, the monitor is not connected to a power source. The monitor also needs power to start, so if the monitor doesn't respond, it's possible that the monitor isn't plugged in, and you need to check if the power plug of some monitors is on.

1. Display failure.

If the host can start normally and the monitor does not respond, then it is very likely that the monitor is faulty, you can try another monitor, if the other monitor can be used normally, then this monitor must be faulty. Overhaul is required.

2. The connection cable between the monitor and the host is loose and falls off.

If the host is okay and the monitor does not respond, it may also be that there is a problem with the cable between the host and the monitor, such as the cable is loose or falling off, causing the monitor to be unable to receive the signal of the host.

3. The power supply of the display is faulty.

The monitor also needs to be plugged in to boot, so if the monitor doesn't respond, it may also be that there is a problem with the power plug of the monitor, causing the power supply failure of the monitor, and you need to check whether the power plug of the monitor is powered on.

Such failures are generally due to the following reasons:

1.The graphics card is in poor contact with the signal cable of the display, and it should be reinstalled.

2.The monitor itself is faulty, and this requires the display to be replaced.

In this case, it is a black screen, first check the memory module, use the eraser to erase the memory gold finger, and then unplug the independent graphics card with the core display (if the CPU has a core display or change to a separate graphics card), and finally consider the failure of the motherboard, CPU, and display, which can be detected by the replacement method.

This is a problem with your computer host that needs to be disassembled to detect accessories.

1. The host can run normally, but the monitor does not respond, because there is a problem with the monitor. 2. The host and the display need to be connected by the connecting device, if the component is okay and the display does not respond, it may be because of the problem with the connection line between the host and the display, such as the connection cable is not stable or falls off, which will cause the display to be unable to receive the signal of the host. 3. The monitor also needs to be plugged in to start the power supply, so if the monitor does not respond, then it may be because there is a problem with the power plug of the monitor, which causes the power supply of the monitor.

Suggested treatment method: 1. In this case, you can try to change a monitor, and then another monitor can be used normally, then it may be because this monitor must have a problem and needs to be repaired. The organization can also operate normally, but the monitor does not respond, then it may be because there is a problem with the monitor, in this case, you can try another monitor, and then another monitor can be used normally, then it may be because this monitor must have a problem and needs to be repaired.

2. If the connection cable between the host and the monitor is not connected normally, then you only need to reconnect or replace a cable. 3. If it is because of the power supply problem of the monitor, in this case, you need to check whether the power plug of the monitor is powered on normally, if it is not powered on normally, you need to repair it or plug it back in to see if it can solve the problem that the monitor does not respond after the computer host is turned on. This is only for models like Dell Vostro3668.

Here's how to fix it:1. If your computer has a black screen.

Later, the light of the display is not on, but the light of the main chassis is still on, at this time, consider that the power plug of the display is not plugged in properly, or it has been loosened, just plug the plug back in.

2. If the light of the display is on, and the main chassis is also on, you have to consider another problem at this time, that is, it is possible that the transmission line is loose or broken, so try to replace it with a new one at this time.

3. The black screen of the desktop computer boot may not only be a problem with the power supply or plug, but also the graphics card of the computer host is loose, in this case, you need to open the computer case, get the graphics card down and wipe it, and then install it to try to see if it works.

Reasons for the black screen of the computer on boot:1. There is a problem with the monitor, or it is broken.

3. There is a problem with the memory, or it is a poor contact.

4. There is static electricity on the motherboard, resulting in no response.

5. The discrete graphics card has poor contact or problems.

6. The motherboard is broken, or there is a problem.

1. Check whether the computer monitor and the host are normally connected to the power supply, whether the power-on indicator of the power supply is on, whether the power indicator is not lit when the display is not powered on, or the power-on power indicator is on but there is no signal or the screen shows "nosighal". 2. It may be that the computer is self-checking, and there is a horizontal bar flashing at the top left of the screen when the screen is black, and the black screen of the computer means that no program has been started at this time is self-testing.

Suggested Treatment:

1. Try to replace the screen cable or screen, sometimes the screen cable and screen are not too badly damaged, and they can also be repaired directly.

2. If it is caused by the graphics card, you can take off the graphics card first, then find the eraser, gently wipe the metal part on the graphics card with the eraser, after wiping, clean the slot again, after the cleaning is completed, reinsert the graphics card, and then restart the computer should be fine.

3. If it is a problem with the graphics card, it is generally because the main control chip of the graphics card has poor characteristics, or the contact with the graphics card slot is not close, or there is too much dust in the graphics card slot, you can disassemble the host, find the graphics card, pull it out, clear the hygiene of the card slot, and then reinsert it.

4. If the host can be displayed when connected to other monitors, and then the display of this machine is connected to other normal hosts and still cannot be displayed, it means that the display is damaged and needs to be repaired.

The computer host can start but the monitor does not respond, how to solve the problem:

First, turn on the power supply and confirm whether the computer's power supply is working properly. That is, listen to the sound of the fan and confirm that the power button is lit normally. If the light is on normally and the fan is working normally, it means that the computer power supply is normal, and if the power button is not lit, consider whether to replace the power supply.

Check that the indicator light on your keyboard is on. If the indicator light is on, it means that the computer is powered on normally.

If the light is not on, the VGA cable on the computer screen may not be plugged in, or it may be loose, and if the light is not on, it should be unplugged and plugged in again. BIOS errors and static electricity on the motherboard can also cause this issue. Please try restoring the BIOS settings to factory settings.

Remove the motherboard's coin cell battery, after a few minutes of sitting, the initial value of the BIOS will be restored after installing the coin cell battery in its original position.

Check the position of the display signal cable and the connector of the main computer to confirm whether there is any looseness. When the line is loose, just plug it in again. Or unplug the signal of the monitor, and check whether the connector and line of the signal cable of the monitor are damaged.

If the connector and line are damaged, replace the monitor signal cable with a new one.

If there is no problem with the cable, there may be a problem with the hardware of the computer's main computer. First, press and hold the power button on the computer, completely cut off the power of the computer, and then unplug the power outlet. After disassembling the console, disassemble the memory, hard drive, or dedicated graphics card, and wipe the connector section with an eraser.

It may be due to oxidation over a long period of time, resulting in poor contact.