When this industrial computer failure problem occurs, the first thing we have to check is the BIOS. The BIOS of the motherboard stores important hardware data. At the same time, the BIOS is also a relatively fragile part of the motherboard, which is easily damaged. Once damaged, the system will not be able to run. Such failures are generally caused by the damage of the motherboard BIOS by the CIH virus. (Of course, it is not ruled out that the failure of the motherboard itself causes the system to fail). So we can judge whether the BIOS is damaged by checking whether the hard disk data is intact, if the hard disk data is intact.
In addition, there are the following three situations of industrial computer that will cause the phenomenon of no display when the device is turned on:
1. There is a problem with the expansion slot or expansion card of the motherboard, which causes the motherboard to not respond and no display after plugging in an expansion card such as a sound card.
2. The CPU frequency set in the CMOS of the jumper-free motherboard is incorrect, which may also cause no display failure.
3. The motherboard does not recognize the memory, the memory is damaged or the memory does not match, which will also cause the failure of no display after booting.
