What s the reason why the computer sometimes can t get up?

The voltage is too low, you change the plug to see...

Or maybe there's too much dust in the case...

Open the case and clean the motherboard with a rag

It may be that the motherboard is crooked, the graphics card is loose, the memory is loose, or it is dusted

Memory module failure is mainly caused by loose memory module, virtual soldering or the quality of the memory chip itself, the memory module contact fault should be eliminated according to the specific situation, you can try to re-plug it, if there is a problem with the quality of the memory module, you need to replace the memory module to solve the problem.

1. There is no response after the computer is turned on.

In this case, first judge whether the computer circuit is powered on, check whether the computer power light and display are on, and replace the power line if it is not on, try to rule out the problem of the power cord.

If there is no problem with the power cord and the display lights up normally, then there may be a problem with the power supply, and then continue to inspect the hardware on the host to see if the hardware is in poor contact or the components are broken, you can also try to clean the dust of the parts of the host, and then rule out whether the hardware is loose.

In the end, it is recommended to send the computer to a computer store for repair, and do not cause damage to other hardware by yourself.

Second, the computer is powered on, and the monitor does not respond.

First of all, check what screen appears on the computer monitor, if there is no signal state, it may be that the line interface connecting to the host computer is loose. Plug or replace the line.

If the monitor lights up, but there is no picture. It may be that the graphics card or memory is in poor contact, unplug the memory and graphics card, wipe the gold finger with an eraser, and then plug it back in. Again, it is recommended to send the computer to a computer store for testing.

3. The computer is powered on, and Windows fails to start normally.

Win7 system tries the following:

First try to restart the computer, immediately press F8 (continue to press simply), the option of "Safe Mode" appears, select Safe Mode to enter, and see if it is successful. Or select "Last Normal Configuration (Advanced)", which usually solves the problem.

Win8 Win10 tries the following:

Generally, the system above win8 will appear on the screen of automatic repair, we click "advanced options", the screen that appears selects "troubleshooting", and then enter "advanced options", find "startup settings", according to the options above the startup settings interface, we press the number key 4 to select to enter the "safe mode".

Fourth, the computer is powered on, and the black background English is displayed.

If press f1 to continue or press del to enter setup" appears, it may be that the motherboard battery is dead, and you can reinstall and replace it. Or manually press F1 to enter the system.

If you see the "Windows failed to start, unexpected error" screen, you need to reinstall the system to solve the problem.

5. The computer is powered on and the blue screen interface is displayed.

First of all, let's take a look at what the blue screen appears is. Record it and search for the solution to the blue screen**, if it is a hard disk failure, try to unplug or change a hard disk data cable, it really doesn't work, you need to take it to a computer store to detect the hard drive.

It is also possible that the computer is poisoned or the driver is faulty, and the system is usually reinstalled.

There may be malicious programs.,Install a 360 check.,If you can't start, it's recommended to forcibly cut off the power.,And then turn it on.,It will let you choose the boot method.,There are"Normal boot","Safe boot",I forgot the rest.,You choose that"Safe boot",And then uninstall some abnormal programs。 Just restart it.

Hey hey If you are poisoned, reinstall the system, and the de disk will not kill the virus. It's useless to reload like that

If the hard disk has bad sectors, there will be an error in the process of reading the hard disk when booting up, format it, it really doesn't work, try low-level.

1.Is it not possible to start at night when the electricity is peaking? Please check the mains voltage, if there is a problem with the power supply of the computer, it may not start. Please check the power connection and test it with a good quality computer power supply.

2.If the temperature is too low, the system may not be started due to changes in the parameters of the electronic components. Raise to a suitable temperature.

3.Check the chassis switch for problems. If there is a problem, please replace.

Here's the answer.

.The biggest possibility is a virus.

Second memory. If the boot rings more than once, it is a hardware error.

It's usually a hardware conflict.

Thank you for adopting, and by the way, I wish you a happy family every day in the new year!

The question is simple.

There is a problem with the power supply of the computer.

Then it causes a problem with your computer's motherboard power supply circuit.

It is likely that a capacitance breakdown has been caused.

You should take the main unit to the place where the computer is being repaired for a full test, and the power supply is fine.

It must be the motherboard's power supply that is causing the problem.

Recommended online.

Collect a second-hand motherboard for replacement.

Or you can upgrade your computer completely.

Such!! Find a friend to borrow memory, replace the graphics card one by one to see if it can be opened, and you can eliminate the part where the problem is in you.

1. The voltage is unstable. 2. There is a problem with the power supply of the host.

If you have a memory module problem, unplug it and try to reinsert it.