If there is no response after the industrial computer is started, the following methods can be used to judge the reconciliation formula. After turning on the power switch of the industrial computer, check whether the indicator light on the chassis panel of the industrial computer is on and whether the rotation sound of the fan in the chassis can be heard.

1. If the indicator light on the chassis panel of the industrial computer does not light up and the rotation sound of the fan is not heard, it indicates that the industrial computer is not connected to the power supply, and the power supply shall be checked.

2. The indicator light on the panel of the industrial computer case is on, and the rotation sound of the fan is heard. Check whether the power indicator of the display is on.

(1) If the power indicator of the monitor does not light up, check whether the power cord of the monitor has been connected, and turn on the power switch of the monitor. (it should be noted that the power indicator of some displays does not light up when the industrial computer does not send a signal).

(2) The power indicator of the monitor is on. Is there a text display on the screen? If there is no display on the display screen, first check whether the signal line of the display has been connected to the industrial computer, firmly connect the signal line to the interface of the graphics card, and confirm that the horn of the industrial computer chassis can sound.

If the horn emits “tick… Tick…” for two consecutive times, it is relatively short and the alarm sound is repeated. It means that the graphics card of the industrial computer is not plugged in properly or has poor contact. At this time, turn off the power, open the chassis, plug in the graphics card again, and fix the graphics card. If the machine still goes down and continues to make the sound mentioned above, there may be a problem with the graphics card. You can get it to another industrial computer for debugging, or you can’t, you need to replace the graphics card. If the horn emits “… Di… Di…”, the interval between each sound is long, and this sound is repeated because the industrial computer does not detect the memory module, re insert the memory module and debug it on different memory sockets. If not, replace the memory module.

If you don’t hear the horn, you need to check the wiring and accessories of the industrial computer one by one. First, turn off the power supply of the industrial computer, then pull down the accessories inserted on the industrial motherboard, and then pull down the hard disk data cable and the reset connection cable of the chassis panel (the power switch cable and speaker cable are left), leaving only CPU and memory on the industrial motherboard. If the reset switch is stuck, the industrial motherboard is always in the reset state, and the industrial computer cannot be started. If the data line of the hard disk is connected reversely, the industrial computer will not respond. Then turn on the industrial computer and pay attention to whether the horn makes sound.

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