The black screen failure caused by the damage of the host power supply or the poor quality of the host power supply is very common. For example, when you add some new devices, the display has a black screen failure. After troubleshooting the quality and compatibility problems of the accessories, the quality of the power supply is not good. The main cause of the failure is the lack of power. At this time, you may still hear the internal The horn alarms 12 times continuously, and replacing a high-power and high-quality power supply is the best solution for this type of failure. In addition, some motherboards have AT/ATX dual power interfaces, and the incorrect selection of jumpers can also cause this type of failure.
2. Failure caused by the quality of accessories
Poor quality or damage to computer accessories is the main cause of the black screen of the monitor. For example, problems with the motherboard (and motherboard BIOS), memory, graphics card, etc. will definitely cause a black screen failure. If the malfunction is manifested as the display light is orange, then replace the display card, memory, and even the motherboard, cpu with the replacement method, which is the quickest solution.
3. Connection quality between accessories
Improper or loose connections between the memory, graphics card, etc. and the motherboard are the main reasons for the black screen failure. In addition, problems with the connection between the display card and the monitor may also cause this type of failure, until the AT power supply is incorrectly plugged in. What’s more, if your hard disk or optical drive data cable is connected reversely, it may also cause a black screen startup failure.
4. Black screen failure caused by overclocking
Excessive overclocking or overclocking of components that are not suitable for overclocking will not only cause black screen failures, but also damage accessories in severe cases. In addition, excessive overclocking or overclocking of components that are not suitable for overclocking will cause poor heat dissipation after overclocking, or damage to the cooling fan during normal use, and will not turn at all, which will cause the system to protect itself and crash and black screen.
5. Black screen caused by other reasons
Others, such as incorrect motherboard CMOS settings and incorrect motherboard clearing of the BIOS jumper can cause a black screen failure. At this time, you can change its settings according to the motherboard instructions. In addition, software conflicts, such as driver problems, improper installation, improper DIY, such as BIOS refresh error, incorrect power management settings, hardware damage caused by vicious viruses (such as CIH), etc., may cause the display to black screen failure. When you encounter this type of failure, you may wish to think more about the cause of the failure, so that you can solve the failure and know yourself and the enemy with less effort.