1. Overclocking when checking the graphics card. If the graphics card is overclocked, irregular and sharp horizontal stripes will appear. At this time, the overclocking range should be appropriately reduced. Please note that the memory frequency should be reduced first.
2. Secondly, check the quality of the graphics card. If there is a problem with the screen after replacing the graphics card, and after the first and second strokes are invalid, please check whether the graphics card’s anti-electromagnetic interference and electromagnetic shielding quality is qualified. The specific method is to install some components that may cause electromagnetic interference to the graphics card (such as the hard disk), and then check whether the screen disappears. If it is determined that the electromagnetic shielding function of the graphics card has been turned off, you should replace the graphics card or make a self-made shield.
3. Check if the connection between the LCD splicing screen and the graphics card is loose. "Messy" and "noisy" screens caused by poor contact are the most common phenomenon. If the frequency of the connection line is frequently inserted, the interface is in poor contact. So try to avoid frequent wiring frequencies.
4. Check whether the resolution or refresh rate of the LCD splicing screen is set too high. The resolution of LCD splicing screens is usually lower than that of CRT monitors. If it exceeds the optimal resolution recommended by the manufacturer, blooming may occur.
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5. Check whether an incompatible graphics driver is installed. This situation is usually easily overlooked. In fact, some of the latest drivers are in beta or optimized for specific graphics cards or games. Using such a driver can sometimes cause the screen to appear. Therefore, it is recommended that you use Microsoft certified drivers as much as possible, preferably the drivers provided by the graphics card manufacturer.
6. Generally, if the above methods have not been solved before the screen phenomenon, it is recommended to replace the screen and try again. It is likely that the screen is damaged. It is recommended to replace it or notify the supplier to re-deliver it.
