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HomeComputer TutorialsTroubleshootingWhat causes a short circuit on a laptop motherboard?

What causes a short circuit on a laptop motherboard?

Why is the laptop motherboard short circuited?

There are two possibilities for a short circuit on the laptop motherboard. On the one hand, the motherboard itself is poorly insulated; on the other hand, there may be foreign metal parts (such as screws) on the motherboard that cause the short circuit.

Due to the limited volume requirements, notebook motherboards are generally made of multi-layer circuit boards stacked together. If the motherboard's craftsmanship is not good during the production process, or occasional incidents lead to poor insulation, the motherboard will be damaged under large current conditions. In this case, it is very likely to cause a short circuit. In addition, a possible accident is that a metal piece falls on the motherboard, causing two devices that are already separated by insulation to overlap, resulting in a short circuit.

There may be two types of symptoms after a short circuit. One is an obvious burnt appearance, which is easy to repair. The other is that the short-circuit current is not too large and may not be visible from the appearance, making it difficult to confirm the fault.

Does it still need to be repaired if the laptop motherboard is broken?

Whether it is necessary to repair the motherboard if it is broken depends on the damage. If only the parts are damaged, repair it; if the entire motherboard is damaged, there is no need to repair it and just replace it.

Laptop motherboard is the core accessory of laptop computers. Different models of machines use different motherboards, and even machines of the same model may be different, causing this machine to be incompatible with this machine.

There are many notebook motherboard manufacturers and brands. Generally, notebook computer manufacturers have their own motherboards and their series. The motherboard includes north and south bridges, sound cards, network cards, graphics cards, capacitors, resistors, IC, and BIOS. wait.

What will be the impact if the notebook motherboard is replaced?

No.

Replacing the motherboard of a laptop will not have any impact on the computer. Today's household appliances, especially computers, mostly use motherboards. When the motherboard of a laptop is broken, maintenance personnel will remove the damaged motherboard and replace it with a new one.

What are the symptoms if the laptop motherboard is broken?

If the computer motherboard is damaged, the following phenomena may occur:

It cannot be turned on normally, or there is a harsh sound when it is turned on, indicating that it cannot pass the power-on self-test.

After turning on the computer, the indicator light comes on, but the screen is still black;

You can enter the system, but there is an abnormal sound from the motherboard;

When running the system, a blue screen or a black screen appears. ;

Some functions in Windows cannot be used normally;

Note: The computer should pay attention to anti-vibration, especially during operation; anti-moisture, often started, if the computer is not turned on for a long time during the humid season, Use a hair dryer to blow it before turning it on to prevent the motherboard from short-circuiting.

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