Why is it that I turn on my computer and it is running, but the screen is not responding?

1.If the computer starts running, the motherboard is powering up.

2.If the light at the bottom of the mouse is not lit and the keyboard light flashes off when it is turned on, it means that your motherboard does not have a keyboard to boot on.

This is normal or change to a mouse with an SP2 interface.

3.If the monitor does not light up, it means that the motherboard has not completed the BIOS self-test

a.Remove the memory, wipe the gold finger, and try a different slot.

b.Observe whether there is obvious scorching and deformation on the motherboard, and whether the capacitor is bulging and deformed.

If there is a suggestion, send it for repair.

c.Remove the graphics card, wipe the gold finger and reinstall it.

d.The south bridge and COMS chip of the motherboard are damaged, and it is recommended to send them for repair.

4.Remove the BIOS battery, discharge it for one minute, and then install it.

5.Auto restart, indicating that your power supply is not enough, it is recommended to replace your friend's power supply with a try, if.

No problem, it means that the power supply is insufficient, and it is recommended to replace it.

6.If you feel troublesome, it is recommended to take the whole machine to the dealer for maintenance.

The case is loud, and the first thing you have to tell is from where it came from.

CPU fans, graphics card fans, power supply fans, and chassis cooling fans can only be solved if you find out the root cause.

The first thing you need to do is determine which hardware the sound is coming from:

1.Power supply fan.

3.Graphics card fan.

4.The signal and power cord fell onto the fan.

5.Independent cooling fan for the chassis.

6.There are fixed screws on the chassis that are not tightened.

I judged that it was the voice and replaced it with the substitution method. Or lubricate the fan with lubricating oil.

If there is a 1 20 chance of booting, I doubt it:

The power supply on the power supply line is unstable, check whether the capacitors around the CPU are bulging and deformed, and it is recommended to send it for repair.

2.The fault of the boot line may be caused by the failure of the components on the boot line or the poor contact.

3.The south bridge of the motherboard has virtual welding, and the signal transmission and power supply are unstable.

In short, it is recommended that you take it to the dealer for maintenance, generally the motherboard has a three-year warranty, if the warranty is over, you can also get the computer city for maintenance, generally about 50 yuan can be done, the big deal is to change a motherboard.

You unplug the memory and graphics card, wipe them in, and then you unplug the power cord and press the computer switch more than 5 times to discharge.

It could be because the computer doesn't boot up properly, or the power on the computer monitor isn't turning on. At this time, the first thing to check is whether the ** cable is faulty, you can change the cable and restart the computer to try. It is also possible that the display is damaged by the base code, and in this case, it can only be repaired or replaced.

The steps to check if the monitor is not responding are as follows:

1. First of all, determine whether it is a problem with the power supply of the display, and check whether the power supply is normal or whether the power cord is in good condition; Then check whether there is any problem with the connection between the ** cable of the computer host and the monitor;

2. Check whether there is any problem with the boot of the host, and make sure that the status light on the front panel of the chassis is turned on and the indicator light on the keyboard is turned on when the machine is turned on;

4. If the host cannot be turned on normally, after ruling out the power supply problem, try to check whether the memory is plugged in tightly, generally after the chassis is moved, the memory may become loose and cause a boot failure, or blow the dust near the memory slot first, and then wipe the memory module with an eraser after cleaning the dry mold limbs.

1. Check whether the display cable is loose, if the line is intact and there is still no response, prepare to disassemble the machine.

2. Turn off the power supply, unscrew all the screws of the bottom shell, and then unplug the memory module to clean it before installing it.

3. Check whether the cable between the motherboard and the VGA is loose, and if so, plug it back in and turn it on.

There are generally several reasons why the screen does not respond after the computer is turned on:

The computer memory is loose, resulting in the computer boot screen not being displayed, just plug the memory back in.

The computer's monitor power is not turned on, just make sure the monitor is plugged in and turn on the monitor power switch.

The graphics card of the computer is abnormal, if there is a problem with the graphics card of the computer, the computer will have a normal sound of entering the system, but the monitor does not respond, this can only go to the computer store for maintenance.

The boot display is not displayed for the following reasons:

The video cable between the computer and the display screen is not properly connected, or it is damaged. You can change the line and try it.

The monitor itself is damaged, and if possible, you can change the monitor and try it.

The memory module is not plugged in properly, or it is damaged, and the memory slot is soldered and damaged. Try it in a different slot.

If you have a discrete graphics card, the graphics card may not be installed, the graphics card slot may be damaged, or the graphics card itself may be damaged.

The graphics card may be soldered and damaged with the integrated display.

The monitor signal cable is plugged in tightly, and the excuse is whether the needle is broken, the needle is crooked, and try to change it.

In one case, there is no "beep" sound when the host is turned on, if not, there is a problem with the host, check your CPU.

Check your power cable if your monitor's power light doesn't turn on, and check your VGA cable if it says "No Signal" when powered on (that is, the cable that the computer connects to the monitor can be removed and replugged). Since your computer knowledge is not very strong, if these two tests fail to restore the computer display, it is recommended to find a friend with strong computer knowledge to help check or send it directly for repair.

There is a problem with the VGA interface of the motherboard, change a monitor to see, it is not good, it is generally a problem with the VGA interface, since you can hear the sound of entering the system, it means that the motherboard is good, in order to ensure that the motherboard is good, you wait for a while after turning it on, and then shut down the keyboard, if you can turn it off, it proves that it is a problem with the VGA interface.

In fact, the host has been useless for too long, there is a lot of dust in it, and the moisture is also heavy, so there will be a problem of bad contact between the parts, you take out the various parts in the motherboard and clean it up, and then reassemble it.

Is the monitor light on? Does it show no signal?

If the monitor is not broken, plug and unplug the plug of the monitor link to the computer once, see if the needle is rusty, if it is a discrete graphics card, plug the discrete graphics card once, and see if the gold finger has blue rust, if it doesn't work, the graphics card is burned, and if there is an integrated graphics card, plug in the interface on the motherboard to see.

The keyboard light is not on, is the fan turning? Listen to whether the hard drive reads? Is there a diagnostic screen on the motherboard?

Does the motherboard have an alarm sound? Unplug the memory and graphics card, power on the empty board, try to have an alarm? If there is, it is a problem with the memory and graphics card, and if not, it is either a bad power supply or a bad motherboard!

The fault should be between the graphics card and the monitor, and the monitor is not receiving the signal that is being sent. You can check your graphics card to show its cables, especially if the 9 pins in the plug are broken or bent? Your graphics card driver also includes whether your monitor is faulty or not.

Take out the memory module and wipe the gold finger (copper sheet), it is best to use plasticine, and brush the bottom of the slot with a dry brush (toothbrush). When inserting memory, make sure that the insertion is in the correct direction.

Memory problem, is there a connection to two memory in the host? Remove one, test the formula. The memory is taken out and static electricity is discharged. Memorize the gold finger part and try it with an eraser.

Need to turn on the computer repeatedly to turn it on? It may be that the graphics card and memory module have accumulated a lot of dust, unplug it and wipe it, I hope it can help you, if it is useful.

Most of the graphics card is faulty, after a while in the trial, if it doesn't work, reinsert the graphics card and interface, and then try to change the graphics card.

Mine is the same. It's just a black screen.,I always turn the screen off and on.,If it doesn't work.、Turn it off and on again.。

You first see if the keyboard can be used, if you can, then open the case, pull out the memory module, wipe it clean, and then install it, if the keyboard can't be used, please be smart.

Is it that the switch of the display screen is not turned on; Otherwise, the display screen is broken, just find someone to fix it!

Unplug and wipe the memory module clean, then put it back, reboot, and you're done!

That's when the cable is loose, unplug it from the plug and it's fine.

Why hasn't it been displayed when it starts normally?,I didn't hear a sound of dripping when I started.,If you don't have it, it's not started normally.。 As you said, it's certainly not a problem with the monitor and keyboard and mouse.

The recommendations are as follows:1First of all, check whether the wires are not connected properly, and unplug all the wires.

2.If the problem is not solved, I usually open the case to remove the motherboard battery, wait for 5 minutes and then put it on, remove the dust from the memory module, and reseat it, and start it.