The computer suddenly shuts down and has a black screen, and then it won t turn on again. What to do

The computer often turns on the screen suddenly and does not turn on.

Hello, caused a black screen after standby.

The main reasons for not being able to wake up are as follows:

1. If there is no external power supply; It may be that the battery is out of charge, just connect it outside.

Just plug it into the power supply.

2. If you can't wake up when connected to the external power supply; The battery can be removed. Then connect an external power supply to power it on.

3. It is possible that the machine has a hardware failure; There are mainly hardware reasons for this; motherboard and motherboard power failure; Or a faulty display. We basically don't judge the failure of this kind of hardware. It can be sent to a professional for overhaul.

Here's the difference between System Standby and System Hibernation.

1. System standby: temporarily stop operating the computer for a period of time, and the computer will enter a power-saving mode when there is no work to do, but it will immediately enter the working state when performing operations such as tapping the keyboard and moving the mouse.

When the system is in standby, the data that is currently running is stored in memory, and the machine only supplies power to the memory, while components such as hard disks, screens, and CPUs stop supplying power. Since the data is stored in fast memory, it is faster to enter the waiting state and wake up. However, this data is stored in memory, and if the power is cut off, the data will be lost.

2. System hibernation: Computer hibernation is when the computer is not operated for a long time, the computer stops working and turns off the power of most components, at this time, you need to press the wake up button to wake up the computer and enter the working state.

When the system is hibernating, the computer will save the data that is currently running in the hard disk, and the power supply of the whole machine will be completely stopped. Because data is stored on the hard drive, which is much slower than memory, it is relatively slow to go to sleep and wake up, and you can completely disconnect the power of your computer while you are sleeping.

Disconnect all power cords.

Reconnect the power supply after 10 seconds.

Try it back on.

If it still doesn't work, you need to contact after-sales testing.

Maybe there's something wrong with the motherboard.

Hello, I'll ask you questions, this situation is still relatively common, but the reasons for its formation need to be understood.

Questions. <>

I pressed those three keys, and it came out of this page.

In this case, you can consider unplugging the power supply. Wait 5 minutes. Then plug it back in. Then reboot it again. See how it goes.

Here's how. Unplug the console, and then press the on/off key of the console power supply a few more times. Well, you can also press and hold for about seven or eight seconds. Then wait a little longer. Plug it back in. Reboot it.

Questions. Okay, give it a try.

If this approach still does not improve. This requires an attempt to open the host panel. Of course, be sure to cut off the power.

Find a button-sized component on the motherboard, which is the B iOS battery. Then take it out. Wait five or six minutes and then put it back in.

Then turn on the power again and normal, turn on and take a look. Anyway, I hope your computer will be fine as soon as possible.

I think it should be analyzed from both software and hardware perspectives. The first thing to consider is whether the power and signal cables of the display are loose. Another is to unplug the memory of the main chassis and see if it is a memory problem?

If the host doesn't respond, then the host is broken.

1. What hardware should be damaged, disassemble the host to check, there is a spare hardware replacement method, 2, first replace the power supply, and then other hardware,

You can reboot into safe mode to repair the system, if you can't even enter the safe mode, then you can only reinstall the system, I hope it will help you.

If the screen is suddenly black, the fan is loud, but the host is still turned on, it means that your graphics card is broken, if your host press to turn on again and there is no response, it means that the motherboard is burned.

There are many reasons why the computer cannot be turned on with a black screen, and only by making it clear that the problem is in the best way to solve the problem.

I hope mine can help you, hope, thank you.

You can find a local after-sales inspection to know the reason.

There are many reasons why the computer suddenly goes black and then it can't turn on, such as motherboard BIOS error or static electricity problem, loose memory or oxidized memory gold finger, etc.

1. Motherboard BIOS error or static electricity problem.

Motherboard BIOS error or static electricity problem will cause the computer to suddenly go black and then can't turn on, you can try to restore the BIOS settings to factory settings, I removed the button cell battery on the motherboard, put it for a few minutes, and then install the button battery in place to restore the initial value of the BIOS.

It is also very simple to remove the button battery, pull the buckle outward, and the button battery can be automatically ejected, and you can remove it directly. If you can't see the coin cell battery on the motherboard, it may be blocked by the discrete graphics card, please remove the discrete graphics card and operate it again.

2. The memory is loose or the memory gold finger is oxidized.

If the keyboard indicator is not lit, press the "num" key or the "numlock" key on the keyboard and there is no response, it may be that the memory is loose or the memory gold finger is oxidized, you can try to shut down the computer and power off first, and then remove the memory module, and then clean up the gold finger, and then reinstall, you can also try to install it in another slot.

Types of computers:

1. Desktop computer: also known as desktop computer, is a relatively large computer, usually including a monitor, host, keyboard and mouse and other accessories, designed to be used on the desktop. Blockade.

2. Laptop: This kind of computer is very lightweight and suitable for portable use. It usually has components such as a built-in display, keyboard, mouse, and battery that can be charged.

3. Tablet computer: This kind of computer usually does not have a key Zhengzhou disk and a mouse, but uses a touch screen to operate. Its small size makes it suitable for entertainment and office work on the go.

4. Gaming computer: This kind of computer has extremely strong computing power and high graphics performance, which can provide gamers with the best quality gaming experience.

5. Embedded computer: This kind of computer is usually embedded in other devices, such as smart phones, smart homes, medical equipment and transportation, etc., and is a very miniaturized computer.

This failure can be caused by a variety of reasons, such as hardware failure, software failure, power supply issues, etc.

First, you can try restarting your computer. If your computer won't turn on, you can check if the power supply is working. If there is no problem with the power supply, it may be caused by a hardware failure, such as a missing memory module or hard drive.

During this training, the user can try to disassemble the computer to check for damage or looseness of the hardware, and if so, it needs to be repaired or replaced.

If there is no problem with the hardware, then it could be caused by a software failure. Users can try going into safe mode to check if there is any virus or malware infecting the computer. If you do, you can run antivirus software or restore the system to pretend to fix the problem.

Also, users can try to reinstall the operating system to fix the problem. This method can erase all software and files from your computer and create a clean system environment again. Still, before reinstalling the operating system, users need to back up all their important files and data to avoid loss.

The computer suddenly goes black and then won't turn on, probably because the computer is out of power, or the computer's monitor is broken.

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.

There are many reasons for the black screen of the computer, such as hardware, software, and the temperature in the chassis.

First of all, try to force the power to shut down, press the power for about 10 20 seconds to turn it on;

Secondly, open the case to see if there is too much dust, clean up the dust, and then try to boot up;

Third, unplug the memory, change the graphics card plug to the integration, and then turn it on.

A black screen is a common phenomenon, especially on older computers or builds. There are many reasons for the failure of a computer's black screen, such as a damaged monitor, a damaged motherboard, a damaged graphics card, a bad contact of the graphics card, a damaged power supply, a damaged CPU, and a high temperature of components.

It may be a problem with the system, or it may be a problem with the memory module, disassemble the chassis, unplug the memory module, and wipe it.

The computer didn't shut down, and after a black screen, it couldn't turn on, which should be dormant, and you need to press the power button to start.

It could be that the CPU temperature is too high. If the motherboard has a self-protection function, it will turn off the black screen and wait for a few minutes before turning it on.

The computer is not turned off, and the black screen is either a screensaver or no power, and the machine can't be turned on to see the power.