What should I do if the Shenzhou notebook suddenly turns on and the screen goes black?

1. Laptops.

The reason for the black screen on boot.

There are many reasons for a laptop black screen, and the common reasons for a black screen are:

Shanghai notebook repair center 400-669-99651, display data cable poor contact;

2. Poor contact of the graphics card or;

3. Poor CPU contact and overheating;

4. Poor contact of memory modules;

5. Poor power supply performance;

6. The machine is infected with a virus, and the BIOS is destructively refreshed;

Second, the laptop screen is black.

How to fix it.

1. The boot display screen is black, only the indicator light is on, and the host does not have any reaction. I can't feel the fan spinning behind my hand behind the main unit. None of the voltages are measured. Remove it and find that the power adjustment tube is broken, and replace it with normal.

2. The power supply and CPU fan are normal, but the screen has no reflection, and there is no self-test sound. This machine adopts SLOT1 structure, and the CPU is easy to contact poorly, so it is sent to the after-sales service for inspection and maintenance.

3. Do not self-check when you turn on the machine, and check that the power supply is normal. Using the minimal system method, the machine can start normally when the optical drive is unplugged. Then install the fault recurrence. It means that there is a problem with the optical drive, and the machine cannot be started. It should be sent to the after-sales service immediately for disposal.

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.

Turn it off and back on.

The black screen of the Shenzhou notebook when it is turned on may be caused by the following reasons:

Step 1: Check the power problem.

Old notebooks are prone to low power when turned on due to aging batteries and other reasons. We plugged it in to charge it, and after 10 minutes, we reinstalled it and turned it on.

Step 2: Check whether you have entered sleep mode.

After the computer enters sleep mode, press and hold the power button of the laptop to turn on the computer for 30s, and the computer can usually be woken up.

In order to prevent the laptop from falling asleep for a long time in the standby system, we can open "Windows Settings" - "System" - "Power & Sleep" and set "Never" to sleep.

Step 3: Troubleshoot system issues.

If the computer is infected with a virus, you need to press the power button to restart the computer, and keep pressing the F8 key when turning on the computer to enter safe mode.

In safe mode, disconnect the network and open the antivirus software to check for viruses, then repair the missing system files, and then restart the computer.

If the laptop can't enter safe mode, then try to reinstall the system with a USB flash drive!

Step 4: Check the graphics card, memory, monitor, motherboard.

After trying the above methods, the notebook is still in a black screen state, then start to check whether the memory or graphics card is not in good contact.

Remove the memory module and graphics card after the laptop is powered off, clean up the dust of the slot, carefully wipe the gold finger of the graphics card and memory with an eraser, and then reinsert it back, and then boot it up to test, it can generally be solved!

If there is no response after multiple tests, then it is possible that the motherboard is burned out, and this situation should be sent to a repair station for repair.

If memory and graphics cards are excluded, the next step is to check the display.

If the laptop supports external monitors, find a monitor that is not damaged and connect it to your laptop. If you find that the black screen of the computer no longer appears, then the reason for the black screen is that the monitor is damaged.

When the laptop is in use, the black screen breaks through because the screen itself is faulty, or there is a problem with the equipment system inside the mobile phone, so the best way is to find a professional technician to repair and deal with it, which can ensure the professionalism of computer maintenance and make the computer use higher quality.

It should be the hardware ** has poor contact, in a little movement, it will cause a slight shaking, so that the contact of the parts is unstable, resulting in unstable display function, it is best to find someone who understands or go to the computer market, let the professionals test it.

If the screen suddenly goes black during use, please check whether the temperature of the laptop is too high. There is also a situation that when the computer is not operated, the screen will automatically go black after a few minutes, which is that the power setting has nothing to do with the hardware.

Restart the computer to try it, you can install 360 Security Guard on the computer, and you can use it to repair the system There are special system repair tools in 360.

It could be that the inside of the laptop is overheating, or it could be that the memory is in poor contact. It is also possible that the graphics card is soldered.

Check it first to see if the graphics card driver is abnormal, or go directly to the after-sales maintenance point to check whether there is a problem with the cable and screen.

If there is an abnormality in the photosensitive function, it is recommended to take it for testing.

This book recommends that you try to replace the screen cable first, other common reasons: loose memory or problems with the memory itself, reinsert the memory or change the root memory to try; The power supply chip of the motherboard is soldered or aged, the screen cable is loose or the motherboard short-circuits the power supply circuit of the screen; Graphics card, south bridge, north bridge BGA packaging chip virtual soldering or damage, generally there are more virtual soldering, just add soldering. Notebook hardware questions answered.