Why do you have snowflakes on desktop monitors?

According to the principle of soft first and then hard, KV3000 antivirus software was used to check the virus, and nothing was found. If you suspect that there is a problem with the graphics card driver, take out the driver disc and reinstall the graphics card driver, but the fault is still there. Set the display resolution to 640 480 or blur the screen from time to time.

At this point, the only thing left is to check the hardware. When you open the chassis and start it, you can see that all the fans are rotating, ruling out the possibility of power failure. Shut down, unplug the graphics card and memory, wipe the "gold finger" repeatedly with an eraser, reinsert the graphics card and memory, or blur the screen from time to time.

Replacing the graphics card with a different computer is fine, ruling out the possibility of a graphics card malfunction. I found a PCI graphics card to try it out, but the fault did not appear. The problem was found, it seems that it is on the AGP slot, and a closer look at the reed of the AGP slot does not find that there is a broken foot or a bent foot.

Gently toggle the AGP slot with your hand, and you can clearly feel that the slot is a little loose. Remove the motherboard set screws, hold the motherboard in your hand and look through it, and find that there are several solder joints on the back of the AGP slot that have been desoldered. Find an electric soldering iron to re-solder, troubleshooting.

I'm 100% sure about this!! I've had that with my machine!! It's a problem with the monitor itself that you open the camera lid. I don't know how long I've been buying, so it's recommended to send it for repair.

Is it that the CRT is broken, or that it is raining back!

First, first confirm that the hardware is fine. If the speaker is fine, the sound card is fine, and if you've tested it on other machines and it's really good, then you can read on. 2. Make sure all the cables are exactly right.

Then power on the speaker and turn on the volume switch. 3. Install the driver of the sound card correctly, if it is an onboard sound card, it is best to install the driver provided on the driver disk of the motherboard. (Actually, the computer doesn't make a sound, and many times it's because the sound card is not driven correctly.)

Under normal circumstances, after the sound card driver is installed, there will be a small speaker in the taskbar in the lower right corner. Fourth, if you are sure that the driver is installed correctly, then take a look at the volume settings in the computer. Here's how:

Double-click the speaker icon in the taskbar to check whether the volume is turned off to the minimum or muted in the "Adjust Volume Control" and "Waveform" dialog box in the pop-up "Volume Control". If these two options are not available in the dialog box, click on the "Options" menu - select "Properties" - select "Volume Control" and "Waveform" in the "Show Volume Controls" and then set them correctly. Note:

The fourth step of setup can only be carried out after the driver for the sound card has been installed correctly in the morning mask. Special reminder: In fact, many times, the reason why the computer does not work properly is a small fault, soft failure, careful analysis, many times can easily solve the problem.

There's a problem with the graphics card, I tried, no.

Snow slippery ripples, this is a signal line interference.

If the signal cable of the computer is too inferior from the chassis, it is very likely to cause interference, it is recommended to buy a signal cable with a magnetic ring, which can reduce the interference of dry branches.

The interference is mainly caused by strong magnetic interference in the vicinity, the work of other electrical appliances, or the room is too small.

There are two ways to solve it. Here's how:

Method 1. 1. One of the reasons for the snowflakes on the computer screen is that the resolution changes too high or too low, resulting in failure. The solution to this reason is to open the computer and right-click on the blank space of the desktop, and the screen resolution appears.

2. After clicking, a selectable resolution range will appear, choose a value suitable for your computer, and take the clarity of the computer screen as the standard. OK to save.

3. Debug the screen refresh rate of the monitor, if this value is too low or too high, it will cause the clarity to change. The debugging method is as follows: right-click on the blank space of the desktop, screen resolution. Advanced settings, a box for the monitor appears.

4. Debug the size of the screen refresh frequency, see if the screen has changed while adjusting, and debug the size according to your actual situation.

Method 21: If the above methods do not work, check whether the cable behind the computer is loose, take it out and plug it in again.

2. If it still can't solve the problem, try it with a new connection line, <>

No signal on the display solution:

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 a 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 one by one to find the cause.

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 certain device in the computer, the speaker is controlled.

Make 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.

Hello friends, in general, there are three reasons why snowflakes appear on this computer screen:

The first reason: It is that the connection cable between this monitor and the host is not connected well, resulting in poor contact and snowflakes formed, you just need to reconnect this connection cable OK.

The second reason: if your computer is an old CRT monitor, due to what kind of magnetization, and the formation of snowflakes, so you just need to turn the auto button on this monitor, press it, or you press the menu to restore the display to its factory value.

The third reason: it may be that there is a problem with the graphics card, or a contact problem between the graphics card and the motherboard, Jianyi takes out the graphics card, and then uses the eraser to align the gold finger to erase it a few times, and then inserts it.

1. If the monitor is disturbed, check whether there are any electrical appliances or magnetic objects around the monitor.

2. If there is a problem with the graphics card driver, try to reinstall the graphics card driver. 3. There is a problem with the display screen, this is a hardware problem, and you can only go to the repair station to see if you can repair it, and you can only replace it.

Oh! Maybe it's dying! It's not good! You've been using your monitor for a long time! But if you can still see it, it's really not good, and you have to change the monitor! Thank you.

Check whether the data interface is loose.

First, make sure that the monitor itself is fine, such as taking the monitor to another computer to pick it up, if it is normal, it means that it is not a problem with the monitor itself.

Second, unplug all the cables and plug them in again to confirm that the cable connections are not loose.

Third, the above has not been solved, and then see if the capacitor on the graphics card has burst phenomenon, if not, try to unplug it, blow clean the ash, reinsert it again, and fix it. In this way, you will know the problem step by step.

Friends, you can use the elimination method to try, one is to confirm that the monitor itself is fine, for example, you take the monitor to another computer to pick it up, if it is normal, it means that it is not the problem of the monitor itself. The second is to unplug all the connecting cables and replug them once to confirm that the cable connection is not loose. The third is that the above has not been solved, and then go to the graphics card to see if the capacitor bursts, if not, try to unplug it, blow clean the ash, reinsert it again, and fix it.

In this way, you will know the problem step by step.

It should be a problem with the graphics card.,Try to plug and unplug the graphics card again.。。 By the way, take an eraser to erase the gold finger.

If you see snowflakes on your computer screen, it may be due to a problem with your graphics card or connection.

Solution: 1. Update the graphics card driver;

2. Replug the monitor connection cable tightly;

3. If it is a discrete graphics card, it is recommended to check whether there is a capacitor on the graphics card that has exploded, and if there is, it needs to be sent to a computer store for repair;

4. Change a monitor to test it to see if it is a problem with the monitor.

This is a blurred screen, and your situation is either a problem with the graphics card or a problem with the display itself.

1. Try your monitor on other machines, whether there is a phenomenon of blurred screen, if not, it means that it is not a problem with the display screen.

2. Consider the problem of the graphics card (generally consider the independent graphics card, and the integrated graphics card generally does not appear in this situation), such as poor contact, or virtual welding, and the graphics card is about to be bolted. It is recommended that you open the case to see if the discrete graphics fan is very dirty, clean it up if it is dirty, and at the same time, it is recommended to unplug the discrete graphics card, wipe it back and forth with an eraser at the position of the gold finger, and then reinstall it.

3. It is recommended that you reinstall the system and try it.

If it still can't be solved, it is recommended that you take it to a computer repair point to see what the cause is.

I can't see it.

Is it a discrete graphics card or an integrated graphics card The general familiarity of the integrated graphics card is the problem of the signal cable, and if the independent graphics card generally has snowflakes on the screen, you can do the following to find the problem, first try to change the signal cable.

Second, check to see if the pins inside the pins are crooked.

If there are still snowflakes in the above operation, reseat the graphics card.

If none of the above works, the graphics card is broken.

White dots? If you have it just after the boot interface, it means that the graphics card memory has exploded.

If there are still snowflakes, it may be a problem with the display driver board, and if there are no snowflakes normally, it may be a problem with the graphics card.

Probably a dead pixel.

Or the graphics card is damaged.

There may be a problem with the graphics card, or it may be that the cable inside the display is loose, I hope you are the second one.

There are three scenarios:

1.Splash screen is a relatively common display failure, and most of the screen failures are caused by the graphics card itself. If you can occasionally enter the system or enter safe mode (F8), first reinstall the graphics card driver; Then it is to clean up the gold finger, which can generally be solved.

If the system can't get in, it is very likely that the video memory is damaged, and often when the system starts, there will be a blurred screen of confused characters, in which case the graphics card or video memory bar must be replaced.

2.If the temperature is too high, the fan of the graphics card is not good, or the air duct in the case is not good, resulting in too high temperature, and the temperature is high in summer, which is more common; Feel the temperature of the memory chip with your hand to check whether the fan of the graphics card is stopped. Then look at the AGP slot on the motherboard to see if there is any dust, check whether the gold finger of the graphics card is oxidized, and then clean up the dust according to the specific situation, wipe the gold finger with an eraser to polish the oxidized part.

3.The power of the power supply is insufficient. If there was nothing wrong with it before, this can basically be ruled out;

Just look at the screensaver.

If it's a desktop, you can consider it from two aspects, one is the data cable of the display or the screen cable inside the display, or the problem of the graphics card, if it is a notebook, it can be the problem of the display screen cable!

There are three reasons why snowflakes appear on computer screens:

The first reason: that is, the connection cable between this monitor and the host is not connected well, resulting in poor contact and snowflakes formed, as long as the connection cable is reconnected.

The second reason: that is, if the computer is an old CRT monitor, due to what kind of magnetization, and the formation of snowflakes, so you just need to turn the auto button on this monitor, press it, or you press the menu to restore the display to its factory value.

The third reason: it may be that there is a problem with the graphics card, or a contact problem between the graphics card and the motherboard, Jianyi takes out the graphics card, and then uses the eraser to align the gold finger to erase it a few times, and then inserts it.