Industrial control motherboard is the motherboard of computer technology in industrial production places. According to the needs, it can be integrated into the wide temperature natural environment, can be integrated into the harsh environment, and can work under load for a long time. Because the application regulations of the office environment are relatively strict, the industrial control motherboard is also one of the most common faults in all industrial control computer components. This industry has also attracted the attention and scientific research of many professional technicians of production line equipment engineering projects. We began to use industrial control computers to solve the problem of no display.

   When the common fault of correct boot of industrial computer is not displayed, check the BIOS setting of industrial computer first. The BIOS of the industrial control motherboard stores the key hardware configuration data information. The BIOS is also a sensitive component of the industrial control motherboard, which is very easy to be damaged. Once damaged, it may cause inoperability. This failure is generally caused by CIH virus destroying the motherboard BIOS (naturally, the motherboard itself is not cleared and the system software cannot run). Therefore, we can check whether the hard disk data is intact, so as to know whether the BIOS is damaged and whether the hard disk data is intact.

In addition, there are three situations that are not easy to display when the machine is started.

1. The expansion slot or card of the industrial control motherboard is not very good. Therefore, after inserting an expansion card such as an external sound card, the initialization of the motherboard fails and is not displayed.

CPU frequency set by the motherboard without jumper in 2.2. Incorrect CMOS will result in unsuccessful display.

3. The motherboard cannot recognize the working memory of the industrial computer, and the damaged or mismatched working memory will also lead to common faults that cannot be displayed and started.