What is the reason why the computer host cannot be turned on?

The reasons why the computer host cannot turn on are: 1. There is a problem with the laptop power adapter; 2. There is a problem with the laptop hardware; 3. There is a problem with the battery; 4. The MBR/DBR in the hard disk is damaged; 5. The CPU There is a problem; 6. There is a problem with the connection of external devices.

The operating environment of this tutorial: Windows 10 system, DELL G3 computer.

I believe everyone has encountered this situation. After using the computer for a long time, it is found that it cannot be turned on. There must be many friends who do not know how to operate it by constantly unplugging the power and restarting it. However, this is wrong and harmful to the computer. The damage to the computer was extensive. Today, the editor will bring you solutions to problems related to the computer host not being able to turn on. I hope it will be helpful to you.

Cause analysis and solutions to why the computer host cannot turn on

1. Laptop power adapter problem

Check the connection between the power cord and the power adapter Connection. If the connection is loose or doesn't work, reconnect it. If the problem cannot be solved, the power adapter may be damaged and we need to replace it with a new one.

2. There is a problem with the laptop hardware

Sometimes, poor connection or damage to the RAM may also cause a black screen. Please remove the RAM from the laptop and clean the connectors with an eraser. Then please reinstall the RAM stick. If it doesn't work, replace RAM. However, if you replace the memory module with a new one and it still does not work properly, it is recommended to send the laptop to a professional for repair.

3. There is a problem with the battery

Please remove the battery from the laptop first. Then disconnect any other unnecessary external devices. Restart the laptop after 60 seconds. (If a black screen often appears, please try to solve the problem by removing the battery.)

4. The MBR/DBR in the hard disk is damaged or damaged

The laptop will access the boot code from the MBR/DBR when booting. If the boot code is corrupted or corrupted, the laptop will not boot and will appear with a black screen with the cursor in the upper left corner.

5. CPU problem

The laptop starts up with a black screen, which may be caused by damaged CPU or poor connection. In this case, it is recommended to send the computer to a professional for repair.

Warm reminder: If you are not familiar with the installation of computer hardware, please send your laptop to a professional.

6. There is a problem connecting external devices

If your laptop is set to USB If an external device such as a disk starts, then any other connected external device may also cause the computer to fail to start and black screen. Please check if you have any other unnecessary external devices connected such as SD card, USB disk.

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