The reason why the computer host chassis will be charged

I believe many people have encountered, hand touch on the chassis have an electric shock feeling, and solve it is also very troublesome, and even all the hardware removed down to reload, installed after the same. In fact, to solve these problems, we must start from the principle, now we have to see why the computer will "leakage", and how to solve.

1. Improper disassembly of power supply

is because of their own improper installation of electricity caused by leakage. There are a large number of components inside the power supply, and the space is small, the disassembly of their own slightly improper, components may touch the power shell. such as inductance coil, almost bare, once touched the shell, the direct result is leakage. If it is really a power supply leakage, the hands of the electric shock is very strong, serious even may be directly open hands. In fact, we can see when we disassemble the power supply, there are commonly used for insulating plastic film, and even some plastic film will block out the tuyere, but in the process of reloading the power supply, we must ensure that these plastic films in situ. If the user carefully reload the power supply can still not solve the problem, you may try to use rubber chips around the power supply board to surround a circle, but be careful not to block the heat duct.

2. Internal cable breakage leakage

A lot of power supplies used in the quality of the wire is not good, even some such as hard disk data cable, such as Wire also has a variety of problems. These wires may be externally damaged once they have been used for a slightly longer period. If the damaged point is right next to the chassis, the man may feel an electric shock when he touches the chassis. But the computer internal voltage is very low, the highest 12V, so this situation is very weak electric shock, often hands only a slight vaporizing feeling. Users can first try to clean up the cables, if the case is not leakage, it is true that the cable is damaged, the proposed replacement of a new power supply.

3, the motherboard will also leakage

Motherboard also leakage? This is true, even the phone board will be leakage, not to mention the computer motherboard such bulky. Motherboard leakage, the feeling of hand feel is relatively strong, almost with the power leakage, there will be obvious tingling pain. And the motherboard leakage will cause all the components are charged, including the motherboard on the heatsink, graphics, etc., will have an electric shock feeling. and the motherboard leakage, mainly the capacitor damage or motherboard components contact with the chassis, so the user can first observe all the capacitors on the motherboard is complete, and then check if there are other cables encountered on the motherboard components. It is best to be able to remove the motherboard, only add the processor, memory, graphics, to minimize the system operation, if also charged, that is the motherboard internal alignment may have been deformed, the proposed replacement of the motherboard.

4, electrostatic discharge to regulate

The

about static electricity on the computer is very difficult to define. Power supply will produce a lot of static electricity, but its internal "Y capacitor" is the leakage capacitor, can eliminate this part of static electricity. If the power of the y capacitor damage, static electricity is nowhere to be released, the power supply may occur leakage. And this process is continuous, as long as the hands feel, there is a sense of shock. The various high-frequency circuits on the motherboard also emit radiation, resulting in static electricity in the chassis. Even people themselves with static electricity, touch the chassis will also release, but this kind of static electricity can often be completely released at a draught, unsustainable. May hand touch the chassis has the electric shock feeling, but again feels does not have. To solve static electricity, be sure to use the power strip with ground wire. If not, you can ground the chassis. However, we must pay attention to the use of gas pipelines and water pipelines as grounding is not possible! The former will be caused by the electric spark pipe explosion, and the latter appears to be reliable, but also for some people do not know the electrical knowledge of the recommended, but in fact the electrical conductivity of the plumbing is excellent, in the presence of short-circuit, its leakage current enough to reach a life-threatening degree!