What does it mean when my computer keeps turning into a red screen?

A black screen is a common phenomenon, especially on older computers or builds. There are many reasons for the failure of a computer black screen, such as a damaged monitor, a damaged motherboard, a damaged graphics card, a poor contact of the graphics card, a damaged power supply, a damaged CPU, etc.

1) The monitor is powered off, or the monitor data cable is in poor contact. In addition, the computer has been used for a long time, and the power cord of the monitor is easy to oxidize and break;

2) There is no power supply to the motherboard;

3) Poor contact or damage to the graphics card;

4) Poor CPU contact;

5) Poor contact of memory modules;

6) The machine is infected with CIH virus, and the BIOS is refreshed destructively;

7) Check the plugging and unplugging, if necessary, you can use a rubber to remove the oxide film on the gold finger;

8) If the floppy drive has a floppy disk, many times it will cause the computer to start or restart, and the computer will have a black screen and cannot enter the system. To avoid such situations, it is also possible to cancel the floppy disk boot item in the BIOS.

For the treatment of the black screen of the computer, the method of eliminating and replacing is basically adopted, and the principle should be based on replacing and eliminating the most suspicious parts first. For ordinary computer users, professional knowledge is insufficient, you can follow the following steps to analyze the cause of the failure, so that you can do it yourself.

Start by checking that the contact is good. Check whether the contact between the graphics card and the monitor is good, and whether the contact between the graphics card and the motherboard IO slot is good, and if necessary, remove it and reinstall it again to ensure that it is installed in place and in good contact.

If there is no problem with contact, it is best to try a different monitor to make sure that the monitor is fine.

If there is no problem with the monitor, check whether the CPU fan is running, if it is running, use a multimeter to measure whether the voltage output is normal to 12V, 15V, if not, you can change the power supply to give it a try.

If the black screen still appears, take out the components installed in the computer, leaving only the CPU, graphics card, and memory sticks, and the cause of the fault can be limited to the CPU, motherboard, and memory. Generally, if there is a fault in the memory, there should be an alarm sound. If the memory fault is ruled out, only the CPU and the motherboard are left.

Change to a normal CPU (should be compatible with the tested computer), boot the computer and re-test, if the black screen still appears, you can only change to a motherboard, and the problem should also appear on the motherboard.

A black screen may indicate a serious problem with your computer, and you may wish to eliminate it as described above when the black screen occurs. In the process of processing, the method of elimination and substitution should be flexibly applied, and the method of exclusion should be carried out for the phenomenon that occurs in a timely manner.

The red screen indicates that the red gun of the display is working abnormally, usually because there is a problem with the circuit inside, or it is possible that you have messed up the balance between light and dark.

After turning on the computer for a while, the temperature of the display rises. And then the solders come loose, and that's just the red gun working. So there is a red screen phenomenon. You move the data cable behind the monitor first, maybe the plug is loose, or it will be like this.

Reasons for the red screen:

The connection signal cable between the graphics card and the monitor is not in good contact. You can replug the VGA connector when the power is off, and carefully check whether the pins are bent or deformed, and whether the signal cable is broken.

Incorrect display color temperature settings can also cause color cast failures. This problem can be solved by simply readjusting the color temperature parameters correctly. If adjusting the color temperature parameter does not improve the color cast, the problem is due to poor contact with the chroma output transistor or bias potentiometer inside the display.

In this case, it is better to send the faulty display to a professional maintenance personnel for processing.

If the red screen occurs in the four corners of the screen, it is generally caused by strong magnetic field interference. At this point, you can check whether there is a strong magnetic device around the monitor.

Maintenance tips

1. Regularly manually back up important registry files to avoid irreparable errors caused by failure to replace backup files in time after system errors.

2. Try to avoid abnormal shutdown and reduce the loss of important files. Disk disks such as VXD and DLL files are damaged or system boot files are lost.

3. For ordinary users, as long as it can run normally, there is no need to upgrade the BIOS and drivers of the graphics card and motherboard to avoid the harm caused by the upgrade.

4. Regularly check and optimize system files, and run the "System File Checker" to check for file loss and proofread versions. For details about the inspection procedure, see the previous section.

5. Reduce the installation of useless software, and try not to manually uninstall or delete programs, so as to reduce the occurrence of illegal replacement files and file pointing errors.

The above content reference: Encyclopedia - Computer Red Screen.

Reasons for the red screen on the computer:

2. It is the problem of the graphics card itself, which may be caused by poor contact or performance degradation of the graphics card, and the lack of color is generally due to the problem of a 75 ohm resistor connected to the VGA in parallel with the three primary colors, so it is good to repair the graphics card, that is, to replace the 75 ohm resistor.

Workaround for the red screen of your computer:

1.Replace the graphics card driver: If the red screen is caused by the driver, after uninstalling the original graphics card driver of the system, use the driver wizard or driver master to reinstall the graphics card driver, and the red screen will probably disappear.

2.Reinstall the monitor: In the Device Manager, click on the monitor to see if there is a small yellow exclamation mark, if there is, double-click on the monitor, and in the driver interface, click Uninstall to reboot the system.

3.Color calibration: "Desktop Right Button - Display Settings - Current Dialog - Advanced Settings - Below Resolution - Color Calibration".

What is the reason for the red screen of the <> computer: 1. It is caused by the connection line between the host and the monitor, which is not fully contacted, and the connection line is plugged in again. 2. The lack of color is caused by poor contact or performance degradation of the graphics card, and the color deficiency is generally due to the problem of a 75 ohm resistor connected to the VGA in parallel with the three primary colors, and the color deficiency phenomenon will occur.

This answer applies to most brands of computer models such as Dell, Asus, Lenovo, etc.

Common reasons: 1. It may be that there is a hardware failure in the computer monitor. 2. The connection line between the computer and the monitor is not in good contact or the signal line is faulty.

3. The graphics card of the computer is generally responsible for the output of the computer screen, and when the graphics card failure occurs, it will lead to the problem of red screen on the computer.

Suggested workaround:

1. If this kind of computer red screen problem occurs, if it is because of hardware failure, you can replace the monitor to solve it.

2. If it is because the connection signal cable between the computer and the monitor is not in good contact, then you can reseat the signal cable and replace it with a new signal cable to solve the problem.

3. If it is because the computer has a graphics card failure, you can replace the Mingyu graphics card to eliminate the fault of the computer's red screen.

4. The error of the color temperature setting of the monitor will also lead to the failure of the computer color cast, if you can't set it, you can try to restore the display to the default setting directly, which can also solve the problem of the red screen on the computer.