What to do if the screen goes black after the computer is turned on

Solutions to a black screen after the computer is turned on: 1. Check the monitor and connecting cable; 2. Check the graphics card and memory module; 3. Check the power supply; 4. Check the CPU and radiator; 5. Check the motherboard; 6. Check whether the computer components are installed securely; 7. Disable or upgrade the graphics card driver; 8. Check for software conflicts; 9. Check the system files; 10. Check the hard disk health; 11. Check the power supply; 12. Reinstall the operating system.

There may be many reasons why the screen goes black after the computer is turned on. Here are some possible solutions:

1. Check the monitor and Connecting cable: First check whether the monitor is working properly, confirm whether the monitor power is on, and whether the connecting cable (such as VGA, HDMI, DVI, etc.) is plugged in and not loose. You can try to replace the connecting cable to see if it is a problem with the connecting cable.

2. Check the graphics card and memory module: If the monitor is normal but a black screen still appears, it may be a problem with the graphics card or memory module. You can try to re-insert the graphics card and memory module, or use an eraser to wipe the gold finger and clean the dust in the slot.

3. Check the power supply: If the computer power supply fails, the computer may not start normally. You can try to check whether the power supply fan is running normally. If not, the power supply may need to be replaced.

4. Check the CPU and radiator: If the CPU is overheated, it may cause the computer to fail to start normally. You can try cleaning the radiator and re-applying thermal grease to ensure good CPU cooling.

5. Check the motherboard: If none of the above methods can solve the problem, the problem may be caused by a motherboard failure. You can try to check whether the capacitors and resistors on the motherboard are damaged or abnormal, or replug and unplug all components on the motherboard.

6. Check whether the computer components are inserted securely: First check whether the monitor cable is securely and reliably inserted into the host interface, and then check the connection between the graphics card and the motherboard I/O slot. The contact is good. If necessary, please remove the graphics card and reinsert it once, making sure it is inserted in place and has good contact.

7. Disable or upgrade the graphics card driver: If Windows has been configured for 3D acceleration, but the graphics card does not support this function, when running a game or multimedia program, an error may occur. A "black screen" error occurs. At this point you can choose to disable 3D acceleration or upgrade the graphics card driver.

8. Check for software conflicts: Some software may cause a black screen problem when the system starts. At this point, you can try disabling or uninstalling recently installed applications and restarting the computer to see if that solves the problem.

9. Check the system files: If the system files are damaged or missing, it may also cause the computer to start with a black screen. At this time, you can try to use the Windows installation CD or USB boot disk to enter system repair mode, try to repair system files or perform system restore.

10. Check hard disk health: Hard disk failure may cause startup problems. Use a hard drive scan tool to check your hard drive for errors or damage. If errors are found, repair or replace the hard drive.

11. Check the power supply: Ensure that the computer power supply is stable. An unstable or low-voltage power supply may prevent the computer from starting properly.

12. Reinstall the operating system: If none of the above methods can solve the problem, the problem may be caused by damage to the operating system or missing files. In this case, you may want to consider reinstalling the operating system. Before reinstalling, make sure you have backed up important data and files.

In short, the black screen after the computer is turned on may be caused by a variety of reasons, which need to be investigated and solved according to the specific situation. Before solving the problem, make sure you have backed up your important data and files to avoid data loss.

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