The computer won t turn on, the monitor doesn t respond, and the power light flashes 20

My computer was the same some time ago, the power light flashed when it was turned on, the hard disk light did not order, there was no alarm, the power supply fan and CPU fan were also turning, but the monitor could not be lit. I began to unplug and unplug the memory module, still no, afraid of bad contact, unplug the wires in the host again, still no, I got it for a long time, didn't do it the computer there, after a while, and then clicked on, beep, it turned on smoothly, (it was estimated that it was too hot), and then I restarted the computer, the problem came again, I couldn't turn on the machine several times, and after hanging there for an hour, I turned on it again, and entered the system smoothly. I didn't dare to turn off the phone at will these days.,Once the phone is turned off, I have to wait an hour to turn on normally.,Everything didn't work until yesterday when I changed the memory.。

It's very likely that the display is broken, (maybe some parts inside) my computer has such a situation, the instruction light is on, and you can turn on and off the machine and hear the sound of switching on and off, but the screen has been black. Later, I took it to the computer city for repair, and said that several parts inside were burned out.

Summary. 1. Confirm whether the reset button on the main unit is stuck.

2. Check whether the signal cable of the display is connected to the host, whether it is connected well, and whether there is any wrong connection.

3. Turn on the power switch of the display, whether the power indicator of the display is not lit or flashing, and whether you can hear the sound of the host powering on normally.

The computer monitor is powered on, the power light keeps flashing, but the screen doesn't light up.

1. Confirm whether the reset button on the main unit is stuck.

2. Check whether the signal cable of the display is connected to the host, whether it is connected well, and whether there is any wrong connection.

3. Turn on the power switch of the display, whether the power indicator of the display is not lit or flashing, and whether you can hear the sound of the host powering on normally.

4. Whether the contrast and brightness of the display are adjusted too low, and the automatic mode of the display is resumed. 5. Remove all external devices, including keyboard and mouse, and leave only the monitor cable, and if the screen does not light up, the display screen is broken.

1. Check whether other boards (including sound cards, decompression cards, and capture cards) are in good contact with the slots of the motherboard Pay attention to check whether the data cable and power cable of the hard disk are connected correctly. For the slots of other boards, clean the pins. It is also easy to cause failure without display.

2. Check whether the contact between the memory module and the motherboard is good, and whether the quality of the memory module is excellent.

Hello dear, the above is my reply, I hope it can help you, I wish you a happy life!

There are three possibilities, one is that the power socket of the display screen is loose or the switch is not turned on, and then the data cable from the host to the display is loose, and the third is that the display is broken.

1 may be an issue with the graphics card! 2 problems with the display or the ** line! 3 It may be a problem with the system, a problem with the graphics card driver! You move the cable, install a system to try, if it still doesn't work, you can consider whether the display is broken.

There is no problem with the CPU, the possible reason is that the hardware compatibility is not good or the graphics card is a problem, "next time there is this situation, pull out the graphics card, reinsert" rest assured, it's okay. The main installation has this problem.

Summary. The reasons and solutions for the computer to turn on the power light flashing are as follows: 1. If the memory module is loose or the memory module is faulty, reinsert the memory module or replace it with a new one.

2. The power supply chip of the motherboard is soldered or aged, the screen cable is loose or the power supply circuit is short-circuited. 3. If the graphics card, south bridge, and north bridge packaging chips are soldered or damaged, contact the maintenance personnel for replacement.

What is the fault when the computer turns on and the power light flashes?

The reasons why the power light of the computer flashes and the solution to the side objects Qingliang has the following points: 1. If the memory module is loose or the memory module is faulty, reinsert the memory module or replace it with a new one. 2. The power supply chip of the motherboard is soldered or aged, the screen line is loose, the difference liquid or the power supply circuit is short-circuited.

3. If the graphics card, south bridge, and north bridge packaging chips are soldered or damaged, contact the maintenance personnel for replacement.

The computer boot display screen does not respond Buy a case The light on the case keeps flashing.

Check if the memory module is loose.

I've checked and it still doesn't work.

What about the motherboard power supply chip?

I didn't know it was that.

Whether the memory module is loose or not.

I took it out and plugged it back in a few times, but it didn't work.

Where is the motherboard power supply chip?

If you want to disassemble the computer, you can't see it if you don't dismantle the computer.

If there is a memory module at home, replace one and see.

No, is there any other possibility, just these two possibilities?

Another possibility is that the graphics card, south bridge, and north bridge packaging chips are soldered or damaged due to this reason