What s going on with the computer boot screen without signal

I believe that many friends have encountered such a problem, the computer boot monitor has no signal, the host should run normally, and the fan is rotating. So what should I do if there is no signal on the computer boot monitor? How to solve it?

The following will introduce to you the reasons and solutions for the computer boot display without signal.

The reasons and solutions for no signal on the computer boot monitor are as follows:

Reason 1: It is possible that the connection line between the desktop host and the monitor is not in good contact (especially if the interface is not plugged in or loose), and there may be a problem with the data cable of this connection, so there will be no signal input to the screen, no display, and black screen.

Solution: Just plug in the connected cable again, or replace the cable.

Reason 2: Due to the formation of an oxide layer on the surface of the gold finger of the memory or independent graphics card, the memory and the memory slot are in poor contact, and the graphics card and the graphics card slot are in poor contact, resulting in a black screen and no signal output.

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, the place 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 another memory slot), and it's OK. If you have a discrete graphics card, you can also use the same method to deal with the graphics card, then insert it back into the graphics card slot, and finally install it, and restart the computer is OK (take the memory).

Reason 3: The graphics card's video memory is soldered, the performance of the main chip is reduced, the graphics card BIOS is disordered, and the control power supply IC is problematic, which will cause the graphics card to fail to work normally, that is, the graphics card is broken, and naturally the computer will have no signal output, and it will not be able to display, and the screen will be black when it is turned on.

The above is an introduction to the solution to what to do if the computer boots up the monitor without signal, if you also encounter similar problems, you may wish to follow the above methods! I hope the sharing of this article will be helpful to everyone.

There is no signal on the computer boot monitor, teach you 5 solutions.

1. If the display is normal, if the boot display is "no signal input", it may be that the host is not turned on, or the host and the monitor are not connected well. In this case, turn on the main unit or unplug the cable to reconnect, and if necessary, you can replace it with a new cable.

2. If there is still no signal input, then open the main chassis to check whether the fan in the host is running, whether the hard disk light is flashing normally, and then check whether there is any scorched metal object causing a short circuit in each component, whether there is a scorched chip on the motherboard, and whether the electrolytic capacitor on the graphics card is melted.

3. If there is no problem with the above, you can clean the dust on the motherboard, unplug the reset cable and other switches on the motherboard.

4. It is also possible that the computer system cannot be started due to problems, or it is possible that the computer memory module is faulty, you can unplug it and erase the gold finger with an eraser, and then install it to give it a try.

Hello, there may be the following reasons and solutions for the computer boot screen showing no signal:

1- Check that the monitor is connected correctly. Make sure that your monitor's power cord is properly plugged into an outlet, and that the cable that connects your monitor to your computer (usually an HDMI or VGA cable) is properly plugged into the appropriate interface for your monitor and the appropriate interface for your computer.

2- Check if the graphics card is normal. If your computer's graphics card is a discrete graphics card, try reinserting it to make sure it's in good contact. If the graphics card is damaged, it needs to be replaced.

3- Check if the memory is normal. If your computer's memory is damaged or loose, your computer may not boot properly. In this case, you can try replacing the memory or reinstalling it.

4- Reset the CMOS. Sometimes your computer's BIOS settings may prevent your computer from booting. You can try resetting the BIOS settings by removing the CMOS battery from the motherboard and plugging it back in the event of a power outage. Stove mold.

5- Check if the power supply is normal. If there is a problem with the power supply of your computer, it may also cause it to not function properly after turning it on. You can check if the power supply is working properly, if not, you need to replace the power supply.

If none of the above solutions solve the problem, consider seeking professional help.

The computer monitor showing no signal is usually caused by the following reasons:

Cable connection problems: Poor cable connection or loose interface may cause the display to fail to receive the signal from the computer. You can check that the cable is plugged in, that the connector is loose, and that the cable or adapter is replaced.

Display failure: If the display itself fails, such as broken screen, backlight failure, etc., it may also cause the display to fail to display properly. You can try replacing the display or having it repaired.

Graphics card failure: The graphics card is an important part of the computer's output signal, and if the graphics card fails, it may also cause the display to fail to display properly. You can try replacing the graphics card or getting it repaired.

Power supply problems: If the power supply of the computer fails, such as a loose power cord or insufficient power supply**, etc., it may also cause the display screen to be displayed normally. You can check that the power cord is plugged in, replace the power supply, or perform repairs.

It should be noted that the problems on the side of the fight need to be investigated and solved according to the specific situation. If you are unsure what the problem is, it is recommended to seek help from a professional technician.