If you can t turn it on, the screen will go black when you turn it on5

Did you have an alarm on the motherboard in this situation? If there is no alarm, it may be a problem with your graphics card, this has nothing to do with the CPU, check the connection between your graphics card and the motherboard and the connection between the color display and the graphics card. If not, it may be that you have adjusted the resolution too high in the system beyond the scope of use of the color display, and the solution is to enter the system security mode to modify.

If none of the above is true, it is likely to be a motherboard problem, find a professional to test it!

Memory is reinserted.

Don't use the graphics card at all, and after removing it, see if it's a black screen to know if it's a graphics card problem.

It's generally a memory and graphics card issue.

CPU problem, I've suffered. There is a deep experience.

This should be a malfunction of the mobile phone, or go to the store to find the master to see.

It should be caused by insufficient memory, like this situation to flash the machine, generally between 30 and 40 flashing fees.

It's hard to judge if this isn't described.

The suggestions are as follows: 1. Whether the computer is out of power, check the power supply, etc.

2. Check whether the lower wire is in poor contact.

3, still not work, conditional replacement parts test, one by one to check 4, not will be sent for repair, back-end detection.

There are generally three phenomena that cause computer crashes: first: the computer power supply is insufficient, the power supply voltage is unstable, or the power supply is broken.

Third: the system is broken, and the system needs to be reinstalled to solve the problem.

Fourth: The cause of the problem is the oxidation of the gold finger of the memory module or graphics card or the poor contact of the slot, which causes the computer to fail to boot up. Solution:

You can turn off the power first, open the computer case, dial out the memory module, use the eraser to wipe the part of the gold finger (that is, the place where there is a copper sheet) back and forth a few times, and then insert a memory slot back in, and you're good to go. If you don't turn on the computer after doing this, you have to check the graphics card, explain that it is a problem with the graphics card, and you can do it in the same way as above.

Fifth: Check to see if the cable between your computer and the monitor is loose.

Press and hold the power button at the same time as the up and down keys to reset your phone.

There are many reasons for the failure of the black screen on boot, such as damaged monitor, damaged motherboard, damaged graphics card, poor contact of graphics card, damaged power supply, damaged CPU, etc. For the treatment of the black screen of the computer, the method of eliminating and replacing is basically adopted, and the principle should be based on replacing and eliminating the most suspicious parts first.

Unplug the data cable connected to the monitor and the console, and turn on the power switch of the monitor separately. Generally, if the display is normal, it will display the manufacturer's information of the display or a prompt that the monitor is not connected, if it can be displayed normally, it indicates that the display is unlikely to be damaged.

Check that the exposure is good. You can check whether the contact between the graphics card and the monitor is good, whether the contact between the graphics card and the motherboard IO slot is good, and whether the contact between the memory module and the motherboard slot is good.

If the black screen still appears, take out the components installed in the computer, leaving only the CPU, graphics card, and memory sticks, and the cause of the fault can be limited to the CPU, motherboard, and memory. Generally, if there is a fault in the memory, there should be an alarm sound. If the memory fault is ruled out, only the CPU and the motherboard are left.

It is recommended to bring the phone and warranty card to the local official customer service center for testing and repair after the phone is fully charged.

There may be batteries or lines, systems. The last time my phone couldn't turn on, it was a cable problem.

The computer crashed, and the system needed to be redone.

See if there's something wrong with the system.