The computer case is electrified, causing interference with the monitor.

The cause of "leakage".

In all the 3C computer power supplies that have passed the national compulsory certification, the 220V AC input line is powered by three wires, namely the live wire (L), the neutral wire (N) and the ground wire (E). Due to the 3C standard, the power supply through 3C must be added to the EMI filter circuit to filter out the interference of high-frequency pulses in the power grid to the power supply, and also to filter out the electromagnetic interference generated by the power supply itself to the outside world. Ways to solve leakage.

From the above analysis, it can be seen that the 3C power supply will have the phenomenon of "leakage", and when it accidentally touches the metal part of the chassis, there will be a feeling of "electric shock", many users are still not at ease, and the following two methods are introduced to eliminate this "leakage" phenomenon.

The best way is to use three-wire power supply, so that point A has a good grounding, and the shell and chassis of the power supply will not be "electrified".

For users who cannot use the three-wire power supply for various reasons, users can make a ground wire, insert a one-foot-long iron wire into the relatively wet ground, and use the wire to connect the iron wire with the metal steel plate of the computer case.

If the previous two methods can not do the user, do not need to pay attention to this leakage current, because it will not cause danger to the human body, some users use a wire to connect the computer chassis with the water pipe at home, although this method can solve the problem of leakage current, but it is more unsafe, because the grounding effect of the water pipe is unstable, in case the computer really leaks, it will be very dangerous, this practice is not recommended.

If according to the merchant, it is caused by not adding an insulating gasket to you when installing the machine, which is too lazy and unprofessional. You can just find a wire that is connected to the screw at the back of the case, and the other end is connected to the radiator at home, and manually make a grounding, so that there is no problem, try it.

There is no solution to the problem of static electricity except the grounding wire! But in your case, I suggest you change to a better power strip, as well as a VGA cable! Thanks, I hope mine can help you!

In the case of not connecting, you can change the phase and neutral wire of your socket and see.

1. The live shell of the computer host should be because the external power supply is not grounded or the grounding is not very good, so it will be like this. Computer leakage is mainly induced electricity, or static electricity, which is also relatively common.

2. If the power supply of the computer is well grounded, the static electricity on the chassis will be carried away by the grounding wire, and the shell of the computer host will not be electrified, so the power cord on the computer is a three-phase plug, and the plug on the plug is for connecting the ground wire; If it is not well grounded, in addition to numb hands, it will also produce electromagnetic interference, which will affect the normal use of the computer, and it will inevitably cause crashes, basket screens or problems that cannot be turned on.

3. The simple solution is to use a wire to connect the computer shell (screw to the shell screw) to the water pipe to be grounded.

4. If you use an anti-static chassis, this problem will not appear.