The computer display screen keeps red and cannot be turned on, which may be caused by various reasons. Here are some possible reasons and corresponding solutions: Possible reasons
1. Host issue: - The host is not started or in standby mode- The memory module is loose or damaged- Motherboard issues, such as static accumulation or malfunction- CPU overheating or damage- Power failure leads to unstable power supply.
2. Display screen issue: - Display screen malfunction, such as backlight board failure, LCD panel damage, etc- The connection cable between the display screen and the host is loose or damaged.
3. Other hardware issues: - graphics card malfunction or poor contact- Display data cables (such as VGA and HDMI cables) are aging, loose, or damaged.
4. System or software issues: - Operating system failure causing inability to start properly- The graphics card driver is expired or damaged. resolvent
1. Check the status of the host: - Ensure that the host is correctly connected to the power supply and turned on- Attempt to wake up the computer by pressing the keyboard or moving the mouse (if in standby mode)- If unable to wake up, try long pressing the power switch to shut down and then restarting.
2. Check the memory module: - Turn off the host power, open the chassis, and check if the memory module is securely plugged in- If the memory module is loose, try unplugging it again and wiping the gold finger with an eraser before installing.
3. Check the motherboard and power supply: - Check if there is static electricity accumulation on the motherboard. If necessary, try discharging it (such as removing the CMOS battery and short circuiting the battery pins with a metal object)- Check if the power supply is working properly and try replacing the power cord or socket.
4. Check the display screen and connecting wires: - Check if the connecting wires between the display screen and the host are securely plugged in, try unplugging or replacing the connecting wires- If possible, try connecting the display screen to another computer for testing to determine if it is a malfunction of the display screen itself.
5. Check graphics card: - If using a discrete graphics card, try unplugging and reinserting it, or replacing it with a new graphics card for testing.
6. Check the system and software: - Attempt to enter safe mode (press F8 when booting up), check if the system files and graphics card drivers are damaged- If the system files are damaged, they can be repaired using the system's built-in repair tools- If there is a problem with the graphics card driver, you can try updating or rolling back the driver.
7. Professional maintenance: If none of the above methods can solve the problem, it may be a serious hardware component malfunction. It is recommended to seek the help of professional personnel for inspection and maintenance.
Be careful and cautious when dealing with such issues to avoid causing further losses or expanding the scope of the malfunction. If you are not familiar with the relevant operations, it is recommended to seek the help of professionals.