Shulou(Shulou.com)05/31 Report--

This article mainly introduces the solution to the black screen of the Win7 system, which has a certain reference value, and interested friends can refer to it. I hope you will gain a lot after reading this article.

The first reason: it is possible that the VGA video connection between the host computer and the monitor is poor (especially if the interface is not plugged properly), and there may be problems with this VGA connection data cable, which will lead to frequent black screen, so reseat the connection data cable or replace the data cable.

The second reason: due to the oxidation of the gold finger of the memory or the graphics card, the contact between the memory and the memory slot is bad, and the contact between the video card and the video card slot is bad, which leads to the failure to boot or the sudden black screen.

How to deal with it: turn off the power supply, open the chassis, remove the memory and the independent video card, rub it several times on both sides of the gold finger of the memory (that is, the part with a copper sheet) with an eraser, and then plug them back in. The independent video card is also treated in the same way, and then install the chassis and plug in the cable. Generally, you can OK in this way.

The third reason: the virtual welding of the video memory of the video card, the decline of the performance of the main chip, the confusion of the BIOS of the video card, and the problems with the control power supply IC will cause the video card to fail to work properly, resulting in frequent black screen. Jianyi repairs or replaces graphics cards.

The fourth reason: the problem of the power supply, when the filter capacitor of the power supply appears drum bag, liquid leakage, there will be leakage, when the power supply is insufficient, there is not enough voltage and current for the host to start, the power supply self-protection circuit starts to protect itself, power is cut off, it is a regular black screen, the treatment method: where can only replace the power supply.

Fifth reason: if the mainframe is normal, the connection cable is normal, or the black screen, it is the problem of LCD display. When the power supply circuit, high voltage board circuit, driver board circuit, no matter which link has problems, such as large filter capacitor drum bag, switch tube open circuit, lamp tube damage, MCU chip damage, damaged power supply regulator, poor screen line contact, and so on, LCD will appear black screen. So at this time, the monitor can only be repaired.

The sixth reason: there is a problem with the boot circuit of the motherboard, and the solution is to repair the motherboard.

Thank you for reading this article carefully. I hope the article "the solution to the black screen of Win7 system" shared by the editor will be helpful to everyone. At the same time, I also hope that you will support us and pay attention to the industry information channel. More related knowledge is waiting for you to learn!

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