Reasons why the monitor shows no signal after the computer is turned on: 1. The connection cable between the monitor and the computer host is loose or damaged; 2. The memory module is not tightly plugged in or is oxidized; 3. The graphics card is incompatible with the motherboard, or the graphics card is loose; 4. The power cord is in poor contact with the host power interface, or is damaged; 5. The motherboard power supply circuit is faulty, such as capacitor bulging; 6. The CPU is not working properly; 7. The BIOS setting is incorrect or damaged; 8. The system file is damaged or lost.

The reason why the computer shows no signal when it is turned on may be connection problems, monitor setting problems, graphics card problems, BIOS setting problems, power supply problems, memory problems, etc. Detailed introduction: 1. Connection problem, first check whether the connection between the monitor and the computer is correct, make sure the video cable of the monitor is inserted into the graphics card interface of the computer, and make sure the connection is firm. Sometimes the video cable may be damaged or loose, resulting in no signal. , you can try to replace the video cable, or replug and unplug the video cable to ensure that the connection is normal; 2. Monitor setting issues, some monitors have multiple input source options, etc.

Solution: 1. After restarting the computer, press F8 multiple times until the screen jumps to the bios interface; 2. Try to enter "Last Known Good Configuration" or safe mode; 3. Uninstall previously installed unknown software, drivers, etc., and then restart Just enter the system; 4. If the above method cannot solve the problem, consider reinstalling the system.

Reasons why the monitor shows no signal after the computer is turned on: 1. The monitor signal cable is loose or damaged; 2. Graphics card failure; 3. BIOS setting problem; 4. Power supply problem; 5. Operating system problem. Detailed introduction: 1. The monitor signal cable is loose or damaged. Loose or damaged monitor signal cable is one of the common reasons why the computer startup screen displays no signal; 2. Graphics card failure may cause the computer startup screen to display no signal. If the computer's startup screen displays no signal, If the graphics card is faulty or incompatible, the signal will not be transmitted to the monitor properly, causing the monitor to malfunction and so on.

Reasons why the monitor shows no signal after the computer is turned on: 1. The monitor is not powered on; 2. The connection cable between the monitor and the host is faulty; 3. The memory module is in poor contact; 4. The monitor is faulty; 5. The graphics card is faulty; 6. The motherboard is faulty. Detailed introduction: 1. The monitor is not powered on. This situation is very common. Many times it is because the monitor power cord is loose or not powered on. At this time, you only need to check whether the power cord is tightly plugged in or replace it with a new one; 2. The monitor and The host connection cable is faulty. Check whether the VGA cable or HDMI high-definition cable connecting the host and the monitor is tightly plugged in, etc.

Sometimes some netizens encounter the situation that the computer cannot be turned on. What should I do if the computer cannot be turned on? Computers have been frequently used in our daily lives. Computers are required for daily and work operations. It is really troublesome if the computer cannot be turned on. Today, Sun Yueyue will tell you a solution to the problem that the computer cannot be turned on. I hope it can help you! Method/step: Method 1: After the computer is turned on, the interface as shown will appear. This is caused by the computer not being able to find the boot device. First, open the chassis cover and confirm whether the hard disk connection cable is normal. Then, enter the BIOS setup interface and set the first boot item to hard disk boot. This may solve the problem. Method 2: After turning on the computer, the host runs normally, but the monitor has a black screen and no display. Check whether the VGA cable between the host and the monitor is properly connected.

In our daily work, computers may experience power outages or sudden shutdowns. When this happens, the high-speed rotating hard disk platters collide with the magnetic heads that are too late to read and write, causing damage to the magnetic media. Therefore, it is very necessary to run a disk check, which can mark the damaged sectors as bad sectors, so that the operating system will no longer access this sector, thus effectively protecting the security of data and avoiding losses. You can use Microsoft's Check Disk tool to scan your hard drive to find and resolve errors. There are three ways to run Check Disk Utility on a Windows computer. Video loading...01 Graphical User Interface The first type uses the graphical user interface for the most basic access. Use File Explorer to open "

Solution to a black screen that cannot enter the desktop after the computer is turned on: 1. Check the monitor and connection cables; 2. Restart the computer; 3. Enter safe mode; 4. Check the graphics card driver; 5. Check for software conflicts; 6. Check for hardware problems; 7. Perform system repair; 8. Check BIOS settings; 9. Update drivers; 10. Check hard disk health; 11. Check power supply; 12. Reinstall the operating system.