The graphics card fault of common troubleshooting methods for industrial control integrated computer.

1. Performance of industrial computer failure:

1. Occasionally, the industrial display has no image display, although it starts normally after booting.

2. Occasionally turn on the flower screen, disappear after entering the desktop or start up normally, after using for a period of time, the flower screen appears.

3. After frequent and intermittent boot-up, the driver of the graphics card is lost. After entering the desktop, it can only display 640*480,16 color mode. It is necessary to reinstall the driver of the graphics card. After the occurrence of this kind of fault, the majority of users'repairs are expressed as flashing industrial displays, incorrect colors or larger icons.

2. Reasons for the malfunction of industrial control integrated computer:

1. Most of them are poor graphics cards. Because the graphics card is damaged by overheating due to poor workmanship or radiator, the damage of the display memory chip will result in the above-mentioned fault phenomenon.

2. A few of them are compatibility problems.

3. Individually, the main board AGP slot power supply is insufficient.

This kind of AGP slot of the main board only provides standard current, and the power consumption of individual graphics cards exceeds the high current value provided by AGP slot. At the same time, graphics cards do not provide auxiliary power interface, so occasional startup without display or sudden crash when displaying large and complex 3D games in the working process. Or black screen.

3. Troubleshooting methods of industrial control integrated computer:

For the newly purchased machine, if there is poor compatibility or the above failure performance, it is easier to deal with, and it can be replaced directly. If problems occur after several months of use, but can not be identified in the test, the computer company can only be strongly asked to give new or other brand products.

Common Faults of Industrial Control Unit I: No Display on Start-up

This kind of malfunction is usually caused by poor contact between the graphics card and the motherboard or by problems with the motherboard slot. For some integrated graphics card motherboards, if the main memory is shared by the display memory, attention should be paid to the location of the memory bar. Generally, the memory bar should be inserted in a slot of the memory bar. There is no display malfunction when the graphics card is turned on, and a long or two short buzzing sound will be emitted when the card is turned on.

Common failures of industrial control integrated computer II: industrial display screen, unable to read handwriting

Such failures are usually caused by the fact that industrial displays or graphics cards do not support high resolution. Flower screen can switch start mode to safe mode, then enter the display settings under Win7, click on the application and confirm in 16 color state; button. Restart, delete the driver of graphics card and restart the computer in the normal mode of Win7 system. In the pure DOS environment, edit the SYSTEM.INI file and change display.drv=PNPdrver to display.drv=vga.drv. After that, the disk exits and the driver is updated in Windows.

Common failures 3: color display is not normal, such failures generally have the following reasons:

1. The failure of industrial display;

2. Video card damage;

3. Bad contact between display card and signal line of industrial display;

4. In some software, the color is abnormal, which is common in old computers. In BIOS, there is an option to check the color and turn it on.

5. Industrial display is magnetized. This phenomenon is usually caused by too close to magnetic objects. Magnetized display may also cause deflection phenomenon.

Common failures 4: loss of graphics card driver

The driver of graphics card is loaded and lost automatically after running for a period of time. This kind of fault is usually due to poor quality of graphics card or incompatibility between graphics card and motherboard, which makes the temperature of graphics card too high, resulting in unstable operation or crash of the system. At this time, only the replacement of graphics card is needed.

Common Failure 5: Abnormal Spots or Patterns on Screens

This kind of malfunction is usually caused by the display card memory problems or poor contact between the display card and the motherboard. It is necessary to clean the golden finger of the graphics card or replace the graphics card.

Common failures 6: crash

This kind of malfunction usually occurs in the incompatibility between the main board and the graphics card or the bad contact between the main board and the graphics card; the incompatibility between the graphics card and other expansion cards can also cause the crash.