When the computer is turned on, the monitor screen flashes and the screen goes black, what is the re

Obviously, this is a type of black screen glitch. 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. Don't panic about the black screen, deal with it step by step:

1.Check to see if the graphics card is installed correctly. Hold the top half of the graphics card with your hand and insert it into the slot evenly so that the fixing screws of the graphics card match the screws of the main chassis.

If you confirm that the installation is correct, you can remove the graphics card and wipe the prongs with an alcohol cotton ball or install it in a different slot. 2.Check to see if the CPU is in good contact with the motherboard.

3.Check whether the bus frequency, system frequency, and DIMM jumper of the motherboard are correct. Check each jumper one by one according to the motherboard manual, and the order is "System Frequency Jump CPU Main Frequency Jumper - DIMM Frequency Jumper", whether it is normal.

If you overclock, it will be back to normal. 4.Check that the graphics card is in good contact with the monitor signal cable.

Check whether the connection between the monitor and the main unit and the socket is secure. 5.Check whether other boards (including sound cards, decompression cards, and capture cards) are in good contact with the slots of the motherboard.

Check whether the data cable and power cable of the hard disk are connected correctly. 6.Check whether the memory module is in good contact with the motherboard and whether the quality of the memory module is excellent.

Plug the memory module back in and out once. 7.Check if the host power supply is working and if the power supply fan is turning.

8.Check to see if the display is powered on; Is the display's brightness potentiometer turned off to a minimum? Whether the high-voltage circuit of the display is normal, etc.

9.Check the parameter settings Check whether the CMOS parameter settings are correct and whether the system software settings are correct. Check whether the graphics card is compatible with the motherboard, including checking the graphics card drivers and motherboard drivers.

What should I do if the monitor screen goes black after the computer is turned on.

1. First of all, we conduct a comprehensive check on the connection between the computer monitor and the host, and plug each connection back to see if there is a connection problem.

2. If the fault still exists, then we need to open the chassis to see if the chassis contains metals and other substances, causing a short circuit in the computer host circuit, and then we smell the computer to see if there is a burning smell, and see if there are damaged components around the motherboard and around the CPU.

3. After checking the whole chassis, there is no abnormality in the chassis, then we will dust the chassis.

4. If it can't be turned on, then use the minimum system method, unplug the data cable of the hard disk, floppy drive, and optical drive, and then check whether the computer can be turned on. Then connect the above devices to the computer one by one, when connecting a certain device, the fault will recur, indicating that the fault is caused by this device, and finally focus on checking this device.

5. If the fault still exists, it is likely to be the fault of the memory card, graphics card, CPU, motherboard, etc., at this time, we only need to plug and unplug these hardware, or replace it again, and try to find the cause one by one.

6. If the memory, graphics card, CPU and other devices are normal, then discharge the BIOS, use the isolation method, place the motherboard outside the chassis, connect the memory, graphics card, CPU, etc. for testing, if the computer can be displayed, then install the motherboard into the chassis for testing until the cause of the fault is found. If the fault persists, you need to return the motherboard to the manufacturer for repair.

7. When the computer is turned on and started, the system BIOS starts to POST (power-on self-test), and when a fatal error is detected in a device in the computer, it will control the speaker to send out a sound to report the error. Therefore, there may be a fault that the power is turned on without displaying an alarm sound. If the computer is turned on and there is no alarm sound, the fault can be checked according to the meaning of the BIOS alarm sound to check the faulty device to eliminate the fault.

The display screen is black, the indicator light is flashing, and the preliminary judgment is that the display is faulty, which can be checked from the following aspects: 1. The power supply problem of the display; 2. Display screen problems; 3. The display is out of order. Workaround:

At two points, it is recommended to send it to the after-sales service office of the display for testing, and it may be necessary to replace the accessories; 3. If the maintenance cost is too high, it is recommended to replace it with a new monitor.

Hope mine can help you.

Hello, it is recommended to re-insert the memory module and erase the gold finger with an eraser. This is a hardware issue. A flash of blinking means that the monitor is not receiving any signal.

According to the sudden appearance of the desktop after more than ten minutes, it can be ruled out that it is a problem with the monitor and the connection cable, and it can also be ruled out as a poor contact.

So the problem is categorized as the graphics card. According to but there is no problem after opening, it is very difficult to boot. It can be concluded that the graphics core is running fine.

It should be the place where the signal output port is connected to the graphics card or somewhere else that the contact is bad. And this poor contact is very good. After the machine heats up and causes the solder to change slightly, the signal can be transmitted normally.

The solution is that the graphics card should be repaired.

First of all, in this case, you have to plug the data cable and power cable of the monitor back in to see if they are loose. If it still doesn't work, you can replace the data cable if you can, or directly replace a monitor to try. If the problem of replacing the monitor is solved, it means that there is a problem with the monitor.