Common faults and solutions of industrial tablet computers

1. How to deal with industrial tablet computers that can hear the CPU fan running when powered on, but the monitor does not light up and the motherboard does not have any alarm prompts?

After the industrial tablet is powered on, the CPU fan can operate normally, indicating that the power supply is normal. However, if the monitor does not light up and the motherboard does not have any alarm prompts, it indicates that the root cause of the problem is on the motherboard. Open the industrial tablet computer case and carefully inspect the motherboard. If liquid flows out from above the capacitors on the motherboard or if the pins are disconnected, or if the chips on the motherboard have been burned out, it can basically be determined that the industrial tablet computer motherboard is faulty.

2. When an industrial tablet computer starts up, the CPU and motherboard fan will turn, but the indicator lights on the chassis will not light up and the host will not start. After forcibly shutting down and trying again several times, it runs normally. How to handle this?

When an industrial tablet computer is turned on, it needs to be started several times and then runs normally. Generally speaking, it is caused by the motherboard, memory, and power supply. The reason for the memory can be detected and eliminated by software. If it is a problem with the motherboard or power supply, the step is to clear the BIOS and unplug and plug in all power interfaces including 24PIN and 4PIN. The second step is to check if there is any leakage in the capacitors on the motherboard. First, replace the power supply. If the temperature stability of the capacitors on the motherboard and power supply is not high, it needs to be started several times to function properly. In addition to observing whether the power supply on the industrial tablet motherboard has bulging or leakage, only the replacement method can detect the problem with the industrial tablet.

3. Industrial tablet computer booting up, CPU、 The fans of the computer case and graphics card are both rotating, the hard drive is heating up, but the monitor has no signal and the motherboard has no alarm sound. How to handle this?

Firstly, it is necessary to determine whether the industrial tablet computer is operating normally, that is, whether there is a "beep" sound when the industrial tablet computer is turned on, indicating that the self-test is normal. If so, it indicates that there is a problem with the display end. The key is to check whether the power cord of the monitor is loose and whether the output interface of the graphics card is connected properly. If the industrial tablet computer does not start up properly, then it is necessary to check where the problem lies with the industrial tablet computer. First, try clearing the CMOS of the motherboard, and then re plug and unplug the memory, graphics card, and other components. You can use the minimum system method without inserting the hard drive to ensure that you can hear the sound of self-test passing when booting up. Generally speaking, if self-test passes, a display screen will appear, otherwise it is a problem with the graphics card. If the smallest system cannot boot up, use the replacement method to check the memory, graphics card, CPU, and motherboard in order.

Analysis and Solutions for Industrial Tablet Computer Malfunctions

1. After the industrial tablet computer is turned on, the motherboard can work normally, but the BIOS detects the keyboard part and reports a keyboard error?

First, check if the keyboard lock is locked and unlock it. If not, check whether the connection between the motherboard and the motherboard, as well as the keyboard and mouse, are connected correctly.

2. After the industrial tablet computer is turned on, other parts work normally, but the disk reading light of the floppy drive remains on and the floppy drive cannot be used?

It should be the reverse connection of the floppy drive data cable.

3. After the industrial tablet is powered on, the power supply works normally and the motherboard has no response?

First, remove the peripheral cards and connected devices to see if they can be started? If not, you can remove the memory and see if there is an alarm? Then check if the CPU is working properly? Finally, replace the motherboard and check if it is functioning properly.

4. The industrial tablet computer tested normally in the company, but it did not display when it arrived at the customer's location?

Generally, if the resolution setting is set too high, the customer's monitor cannot display it. So the phenomenon is a black screen, but there is a normal alarm sound when starting.

5. When using the 7162 motherboard for industrial tablets, neither the mouse nor keyboard can be used?

Check if it is dedicated to 7162. If not, please use the keyboard and mouse reversed.

6. Can you hear continuous alarm sounds when the industrial tablet computer is turned on and the machine is not started?

Based on the alarm sound, it can be determined that it is a memory issue. Open the machine to check if the memory is properly connected, or replace the memory slot for testing. Finally, replace the memory to see if there is a problem with the memory.

7. Is the driver installed correctly when installing the video card on an industrial tablet, but there is no image display or color display?

The default format for general video cards is "ntfc", which needs to be set to "PAL" format!

8. Does an industrial tablet experience an inexplicable restart when running programs?

The compatibility between the software and the motherboard is related. After a comprehensive inspection, if the reason cannot be found, please replace the motherboard and try again.

9. When using the GHOST operating system on an industrial tablet computer, is the partition of the original disk inconsistent with that of the newly carved disk?

The mode and settings of the hard drive are inconsistent. All should be set to LBA mode.