Can t turn on the computer after disassembling the machine?

There are many reasons why the computer can not be turned on, sometimes it is just an independent problem, sometimes it can also be caused by various factors, first check whether the power supply part of the computer is faulty, and then check the hard disk and motherboard, of course, the graphics card is damaged or mismatched can also be photographed as not turned on, so they must be checked one by one to really solve the problem.

Check whether the host is good, whether the motherboard indicator is on, whether the graphics card and memory are plugged in firmly, and whether the monitor is well wired.

It's best to find someone who knows.

Hello dear<>

The answer you are looking for: The reasons why the laptop can't be turned on after disassembly are as follows; 1. The laptop does not respond when it is turned on, which generally means that the boot button is pressed, and the laptop does not have any response, that is, the indicator light does not light up after pressing the power button, the fan does not rotate, and the laptop does not respond at all.

The most common occurrence in this situation is that the laptop battery is dead, or the external AC power supply is damaged or poorly connected. Check whether it is a power supply problem, first see if the power supply is not plugged in well or there is a problem with the plug, if you are using a battery, then plug in the power supply and try again. You can go to a friend or find a power supply of the same model to try it.

If it can be turned on, then it means that the external power supply is damaged, if not, then it means that there may be a hardware failure inside the laptop or the laptop boot button is out of order, in this case, it is recommended to take it for maintenance. Check whether the key parts are looseIf the computer crashes after moving, it may be that the computer has been subjected to a lot of vibration during the movement, resulting in loose internal parts of the computer and poor contact, resulting in a crash. Open the machine and re-fasten the memory, graphics card, hard disk and other equipment.

Motherboard failure: Motherboard failure is the main reason why laptops won't turn on. It is often caused by factors such as liquid ingress of the notebook, damage, and damage to the components of the motherboard itself.

Circuit failure: In addition to artificial liquid inlet and short circuit, most of the faults of laptops that cannot be turned on are problems with the protection isolation circuit and the failure of the boot circuit and EC peripheral circuits, and sometimes the circuit is burned out in a large area.

Is the line plugged incorrectly? What about memory? Take a look at the CPU contacts of the motherboard to see if they are dirty! I really can't afford to spend 20 yuan and let the computer store help you get it! Be careful that your hardware won't break!!

Memory wipe it.

Is there a chirp sound after turning on, if there is, it may be that you loosened the memory module when you disassembled it, check it.

Is the CPU sure it's plugged in? In addition, some CPUs may not light up if they do not have silicone grease. Then there's the memory, take it down and wipe it down.

It's not installed, so let's see if it's reinstalled.

If the CPU is removed and then installed, the computer cannot be turned on, it should be that the CPU is not installed properly, resulting in the computer not being able to turn on.

When installing the CPU, check the following aspects:

1. Whether the CPU pins are well aligned with the motherboard interface to ensure that the CPU is well connected with the motherboard;

2. Check whether the pins are broken or bent, and if there are bends, they can be corrected;

3. Check that the electrical plug on the motherboard should be plugged in tightly, if it is loose, please plug it in tightly;

4. Check whether the CPU fan is connected and whether it can work normally, and make sure that the CPU fan is connected before it can be turned on and worked;

5. Check whether the CPU contacts are dirty, oxidized, etc., and if so, please use an eraser to clean them;

6. Check to see if the needles in the CPU slot of the motherboard are deformed and misaligned, and if there is a problem, you can fix it first.

It may be that the CPU is broken, or it may be the motherboard, the CPU base is soldered, take a closer look at the CPU pin to see if it is broken, and apply some silicone to the CPU, try it.

It's best to find a computer repair place and let him try to change the CPU and identify the problem. If it's the motherboard, just find a place to repair it, and you can fix it for 50 yuan.

Did you apply silicone during installation?

Poor contact of memory, CPU, and graphics card will all have this phenomenon.

There should be an alarm sound when you turn it on, see what kind of alarm sound it is.

It's possible that the needle was broken

Buzz, I have it too, it's you need to get a little silicone, let it go back and see if you can if you can't open it for a few more minutes and then restart it.

Summary. In this case, the hard disk is not raised, so the system cannot be booted. It is recommended to check the hard drive and memory module to see if they are in good contact.

The computer is still in normal use just now, and it can't be turned on after removing the host and installing it back.

In this case, the hard disk is not raised, so the system cannot be booted. It is recommended to check the hard drive and memory module to see if they are in good contact.

Is the line not plugged in?

It should be that the hard drive is not booting.