The computer boots up and the alarm sound keeps flashing the indicator light, and the keyboard doesn

Summary. First of all, you have to reconfirm the CPU, graphics card, memory, whether there is really no problem, if it is really good, see how the compatibility is, there are many cases where the computer does not show when it is turned on:

1: Hardware incompatibility, mainly refers to the compatibility of memory, discrete graphics card, and CPU with motherboard.

2: Voltage problem, the voltage is not enough after the computer power supply is used for a long time!

3: There is a problem with the motherboard, if the other parts are tested normally, you have to overhaul the motherboard!

4: The keyboard just flashes the light does not mean anything, flashing it means that the keyboard is powered on, and it does not mean that the hardware of your machine is okay!

5: Check whether the power supply of the monitor is wiped well, and whether the connector of the graphics card is connected well!

In this case, as you said, I will give you a small aspect, and it is estimated that it is still a memory, graphics card, and voltage problem!!

On the bad side, it may be a motherboard problem!! You can try them one by one, but it's best to let a professional repairman show you, after all, you don't know about computer hardware!

The desktop computer monitor does not light up, the indicator light is on, the keyboard indicator light flashes when it is turned on, and it is gone+ the host has a running sound.

Hello, dear ask the user, hello, I know the high-quality answer, I have received your question, I will reply in time after reading, please wait for a while, after asking, because there are too many lists, it will be in turn, it will not be not, please be patient! ❤

Not yet. Not yet.

Wait a minute, dear.

Dear, maybe the data connection cable is loose, plug it in tightly, and try to plug and unplug the memory card again.

Memory problems, first check the memory, then look at the interface, and finally look at the system, this is the general program to solve your kind of computer!

It's useless to dial the data.

It's useless to dial the data.

Oh, I'll take another look.

First of all, you have to reconfirm the CPU, the memory is really no problem, if it is really good, see how the compatibility is, there are many situations where the computer does not show when it is turned on: 1: Hardware incompatibility, mainly refers to the memory, independent graphics card, and CPU and motherboard compatibility problem 2:

Voltage problem, the voltage is not enough after the computer power supply is used for a long time! 3: There is a problem with the motherboard, if the other parts are tested normally, you have to overhaul the motherboard!

4: The keyboard just flashes the light does not mean anything, flashing it means that the keyboard is powered on, and it does not mean that the hardware of your machine is okay! 5：

Check to see if the power supply of the monitor is wiped properly and the connector of the graphics card is connected! In this case, as you said, I will give you a small aspect, and it is estimated that it is still a memory, graphics card, and voltage problem!! On the bad side, it may be a motherboard problem!!

You can try them one by one, but it's best to let a professional repairman show you, after all, you don't know about computer hardware!

Shut down normally last night and turned on this morning as soon as it was turned on this morning, it was this problem.

The memory module was also unplugged and replugged in.

Dear, if it really doesn't work, just reinstall the system and see.

After turning on, the keyboard light flashes intermittently, the display does not display, first replace the keyboard to try, if the keyboard is replaced, the fault phenomenon is still the same, the problem is:

1. The clock signal of the motherboard is abnormal;

2. The motherboard keyboard interrupt request function is abnormal;

3. The interface circuit of the motherboard is faulty;

4. The circuit of the motherboard keyboard adapter is abnormal, which may be the crystal oscillator soldering or damage;

5. The clock pulse signal of the keyboard adapter is poor or disappears, which is generally the circuit board open.

After booting on, the keyboard light flashes intermittently, the display does not display, after replacing the keyboard, the fault phenomenon is still the same, the problem is:

1. The clock signal of the motherboard is abnormal;

2. The motherboard keyboard interrupt request function is abnormal;

3. The interface circuit of the motherboard is faulty;

4. The circuit of the motherboard keyboard adapter is abnormal, which may be the crystal oscillator soldering or damage;

5. The clock pulse signal of the keyboard adapter is poor or disappears, which is generally the circuit board open.

When I helped my friend repair the computer, I encountered 1 > keyboard connected to the interface end of the host, and the internal needle was deformed or bent 2> or it may be that the capacitor exploded.

Now that the temperature is low, the main engine will be powered on for a few minutes before turning on, except in the morning, is it the same when it is usually turned on? If it's just morning, it should be fine to turn on the machine after a while. If the screen is not displayed, you need to open the chassis, re-pull each board, see if there is any scorched deformation, first eliminate the poor contact, and then replace each hardware one by one to find out which specific problem is.

Which god knows what the reason for this is, thank you.

Unplug it and plug it back in.

Because your computer is in poor contact, just turn on the console and blow the contents inside.

Most of the answers on the Internet are too pitiful, so let me talk about it.

Mechanical keyboard, if there is such a problem, you need to re-flash the keyboard firmware, the specific brushing method is different for each brand of keyboard, and you can find it according to the keyboard model.

Is it connected to the right interface, or what is the key?

Did your monitor not look at the screen when it was turned on, and there was no display? If there is a display when you boot up, you can go to "Please select the operating system you want to start",If you can, when you haven't jumped to the page,Press F8 to enter the interface and then select "The latest correct configuration",See if you can boot up,If not, you reinstall the system,Then you can't send it for repair。

Re-insert the inner stick, or use the 4B eraser to wipe the gold finger of the memory stick. Reconfirm the lines to plug them in. If the keyboard is an SP 2 port, check whether it is plugged in the wrong port. Or unplug the keyboard and turn it on to see if it can start normally. If you really can't do it, install a system.

Remove the battery from the motherboard. Put the positive and negative poles where the battery is installed, and turn it on.

Remove the keyboard and mouse on boot. Well, just add it to the same and you'll know which one is broken. No, it's because there's a problem with the host.

I'm also facing the same question, is there anyone who can answer it? I've tried to flash KDZ in emergency mode, but when the flashing program runs until the phone restarts, the keyboard light flashes again, and the flashing progress cannot be completed. I've also tried the cs-enmergence mode, but it still doesn't work.

Poor boy, take it and fix it! It's the hardware that's broken.