After the computer host starts, the monitor has no signal, the host indicator light is on, and then

Summary. The boot display shows no signal, but the host has lit up Hello, I'm happy to answer for you, <

1.Check to see if the data cable is loose. 2.

If it is a problem with the graphics card, you can disassemble the host, find the graphics card and pull it out, clear the card slot, and insert it again. 3.Look next to the CPU on your computer's motherboard to see if the memory, slots, and memory modules are secure.

Hope the above has helped you <>

The boot monitor shows no signal, but the console is already on.

The boot display shows no signal, but the host has lit up Hello, I'm happy to answer for you, <

1.Check to see if the data cable is loose. 2.

If it is a problem with the graphics card, you can disassemble the host, find the graphics card and pull it out, clear the card slot, and insert it again. 3.Look next to the CPU on your computer's motherboard to see if the memory, slots, and memory modules are secure.

Hope the above has helped you <>

It doesn't help, in addition, the graphics card is fine with power, but the fan doesn't turn.

The boot display shows no signal, in addition, the power supply of the graphics card is fine, but the fan does not turn Hello, I am happy to answer for you, <

The boot display shows that there is no signal and is normal, and it will be displayed after a while. Your fan may be smart and doesn't need to turn too fast when it is speed limited and power saving. Hope the above has helped you <>

Frequent reboots. The boot display shows no signal, frequent reboot Hello, happy to answer for you, <

1.If the monitor is powered on but no signal is displayed, turn off the power and turn on the case, plug in and unplug the memory module again, and wipe the gold finger with an eraser (the back of the thumb fingernail is also fine) in one direction, and then turn it on after installation. If you can't do it, then it's simpler:

You can kick the chassis with one foot (pay attention to the location: the front of the shell on the left and right sides of the chassis that does not have an interface at the back). If it's a notebook, you can't kick it, but it's the same for other operations.

2.If the above operations do not work, turn off the power and turn on the chassis, reinsert the graphics card, and plug in the data cable between the monitor and the graphics card. If it still doesn't work, then consider the graphics card damaged, then replace it with a new one.

3.If the monitor is not powered on (the indicator light is not on), look at the back of the monitor, plug the power cord that connects to the monitor upwards, and check that the other end of the power cord is powered on to the outlet. Hope the above has helped you <>

Motherboard self-check is a CPU issue.

Motherboard self-check is a CPU problem Hello, happy to answer for you, <

1. First look at whether the power supply fan is rotating, and then look at whether the CPU fan is rotating, which indicates that the possibility of the motherboard problem is small. 3. It can be self-checked, but the system does not load, which means that the memory is fine, and it may be a hard disk failure. 4. The system can be loaded but cannot be loaded successfully, it is likely that the system is damaged, and of course, there may be a hardware problem.

Hope the above has helped you <>

The reasons why the host lights up the display and there is no signal: 1. Connection cable problem - check whether the power cord of the display and the connection line between the display and the host are faulty; 2. Memory problem - if the memory is not in good contact, it will also cause the display to be unresponsive, unplug the memory, clean it and plug it back in; 3. Display problems - this kind of need to find professionals to check and repair.

The host computer lights up and the display has no signal

Monitors, also commonly known as monitors, belong to the IO devices of computers, i.e., input and output devices. 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. It is the most important part of a computer besides the CPU, motherboard, memory, power supply, keyboard, and mouse.

There is no unified concept of computer monitor, but the understanding of it is mostly the same, as the name suggests, it should be 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. From the early world of black and white to the world of color, computer monitors have gone through a long and arduous journey, and with the continuous development of display technology, the classification of displays has become more and more detailed.

In addition to the above-mentioned reasons, you can also check if the hard drive is healthy. It should be noted that the hard disk cannot be plugged and unplugged at will, so it is necessary to ensure that the above devices are still black before they can be detected. If the above operation still does not work, it is inferred that there is a problem with the display, and you can consider replacing it with a new one.

Hello dear, 1. The data cable of the computer monitor is not connected or loose, if the newly installed computer, the first time it is turned on, the host is running normally, and the display has no signal, you need to check whether the power is turned on, whether it is turned on, and look at the power indicator. 2. The data cable of the computer monitor is not the same for many new computers, because the motherboard and the graphics card are the first interface, for independent display users, if the data cable is connected to the motherboard** interface, this problem will occur. You'll need to connect its cable to a discrete graphics card** connector in your console.

3. If the memory is not plugged in, loose or dusty, there will also be a black screen on the display and no signal, but the computer has been running, try to shut down the computer and power off and remove the memory module, clean up the gold finger, reinstall, and try to install it in a different slot. 4. Other problems may also be due to other reasons, such as the problem of the display itself and the problem of the host. How to tell if there is a problem with the host, the method is simple.

Connect the keyboard on the host, after the computer is turned on and running, press the "num lock" key on the top of the small number key on the keyboard, if you can control the indicator light on and off, basically make sure that there is no problem with the host, focus on checking the display, data cable and connection.

After the computer is turned on, the power indicator light is also on, the monitor has no signal, and the host computer cannot be turned off, what is the reason?

Hello <>

After the computer is turned on, the power indicator is on but the monitor has no signal, and the host cannot be shut down normally, which may be caused by the following reasons:1Graphics card failure.

The graphics card is the core component that produces the image signal of the display, and if the graphics card is damaged or malfunctioning, it will cause the display to have no signal. You can try to press and hold the delete key at startup to enter the BIOS menu, if you can't enter or the image is abnormal, it is likely to be a problem with the graphics card. The workaround is to replace the graphics card.

2.CPU or motherboard failure. The CPU and motherboard will also affect the normal boot and display of the computer, and if the CPU or motherboard has some chips or interfaces damaged, it will also cause the display to have no signal.

The workaround is to repair or replace the CPU and motherboard. 3.Hard drive failure.

The operating system is stored on the hard disk, and if the hard disk is damaged and cannot be booted, it will also cause a black screen with no signal. The solution is to replace the hard drive and reinstall the system. 4.

The memory module is faulty. Memory is necessary to run the operating system and programs, if the memory module fails, the system cannot boot normally, and the monitor has no signal. The workaround is to replace the memory module.

5.Problems with the power supply. If the computer's power supply is damaged or the power connector is not in good contact, it will not be able to power the computer, resulting in a boot failure and no signal from the monitor.

The workaround is to check all power cables and connectors and replace the power supply if necessary. For such failures, it is recommended to first check the graphics card, memory modules, and all cable connections, if the problem persists, and then consider the fault of the motherboard, CPU, or hard drive, which may eventually require a technician to repair the corresponding hardware parts after inspection. If you're struggling to find out which hardware to replace, you can choose a computer repair shop to have it checked and repaired.