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Check the memory module. It is possible that the memory module will not be generated for a long time, and the socket contact is poor, so plug and unplug the memory module again after unplugging it, and then turn it on and try again.
Check the motherboard battery. First, check whether the battery on the motherboard of the computer is still charged. If there is no electricity, then you need to replace the battery.
Check the graphics card. The nature of the graphics card is the same as that of the memory module, and it may cause rust if it is not used for a long time, so after unplugging the graphics card, gently wipe off the gold finger with an eraser, and then reinstall it.
Clean up the dust. After opening the main chassis, clean up the dust.
A hair dryer can be used, but be careful to use cool breeze water.
Check the power supply. Many times, the machine can't be turned on, most likely because the power supply is loose after not using it for a long time, so it is very important to check the power supply other than the computer host.
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Visually it's a battery issue, or wipe the memory gold finger.
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Windows can't be opened, you can reinstall the system.
The screen is not lit at all, and there are also no batteries, so charge them first.
Eliminate external problems, or if you can't drive, you have to go there for maintenance.
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1. Check whether it is a power supply problem.
First of all, see if the power supply is not plugged in properly or there is a problem with the plug, if you are using a battery, then plug it in 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 the external power supply is damaged, if not, then it means the laptop.
There may be a hardware failure inside or a malfunctioning laptop boot button.
2. Check whether the key components are loose.
If the computer crashes after moving, it may be that the computer has been subjected to a lot of vibration during the move, causing the internal parts of the computer to be loose and in poor contact, resulting in a crash.
Solution: Open the machine and re-fasten the memory, graphics card, hard disk and other devices.
3. The laptop cannot be turned on due to hardware damage.
1) Motherboard failure: Motherboard failure is the main reason why the laptop 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.
2) 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.
2) BGA failure: BGA failure is also caused by the failure of the laptop to turn on, and DBM is used as the South Bridge chip in the Swift Relaxation generation.
is extremely common on notebooks.
Oh, there are generally three such reasons: the chip is damaged, the battery is out of power or the battery is damaged, and the virus program (repair or replace the chip, charge or replace the battery, press the F8 key to kill the whole disk).
The laptop can't be turned on, and you need to confirm the problem in the early stage: >>>More
1. Reinstall the power adapter. At this time, you need to remove the battery and the power adapter, press and hold the switch button for 30 seconds to discharge the static electricity, wait for about 15 minutes, and then connect the power adapter separately to power the machine. >>>More
Solution: First, check whether the external wiring of the computer is connected, and plug in each cable again to see if the fault is eliminated. >>>More
Dear users, hello:
What you say about the situation alone will not immediately diagnose the cause for you. >>>More