Common Fault Analysis and Solutions



The system does not start up after power-on

1.      Check if the power connection cable is properly connected.

2.     Verify if the power supply meets the motherboard's power requirements.

3.     Try reseating the memory modules.

4.     Attempt to replace the memory modules.

5.     Try clearing the motherboard CMOS according to the motherboard manual.

6.     Confirm if there are any expansion cards installed; try removing them to see if the issue persists.

VGA does not output

1.      Check if the monitor is turned on.

2.     Verify that the power cable is correctly connected to both the monitor and the system unit.

3.     Ensure that the monitor cable is properly connected to both the system unit and the monitor.

4.     Check if the brightness control on the monitor is set to a dark state; you can increase the brightness using the brightness control. For detailed instructions, refer to the monitor's user manual.

5.     The monitor may be in "power saving" mode; press any key on the keyboard to wake it up.

BIOS Setup can’t be saved

1.      Please confirm if the CMOS battery voltage is below 2.8V. If it is below 2.8V, please replace the battery with a new one and reset to save settings.

2.     Incorrect BIOS settings. According to the startup screen prompts (such as pressing "DEL"), adjust the time and date in BIOS Setup.

No bootable device found

1.      Please check if the hard drive power cable and data cable are properly connected.

2.     Please confirm if the drive has any physical damage.

3.     Please verify if the operating system is properly installed on the storage

Blue screen or system crash during startup.

1.      Please check if the memory modules and external cards are loose.

2.     Try removing newly installed hardware, uninstalling drivers, or software.

3.     Attempt to replace the memory.

Slow system startup

1.      Try using third-party software to check for bad sectors on the hard drive.

2.     Verify if there is insufficient remaining space on the partition where the system is installed.

3.     Confirm if the CPU cooling fan is functioning properly.

Automatic system restart

1.      Please check if the CPU cooling fan is operating normally.

2.     Verify if the industrial computer reset button was accidentally triggered.

3.     Use antivirus software to check for virus infections in the system.

4.     Ensure that the memory modules and expansion cards are securely seated.

5.     Verify if the power supply has sufficient capacity; consider trying a different power supply if necessary.

Unable to detect USB device.

1.      Please check if the USB device requires separate power.

2.     Ensure there is no loose connection in the USB port.

3.     Confirm in the BIOS Setup that the USB controller is enabled.