Why is there leakage from the back of the assembled computer case?

Is there leakage of electricity behind the assembled computer case? What causes this? Many friends may have encountered the problem of chassis leakage when using desktop computers, especially those who assemble computers. When such problems arise, it often gives us a headache and we don’t know what to do. PHP editor Apple is here to introduce in detail the causes and solutions of chassis leakage. Without further ado, let’s look down!

#Why is there leakage from the back of the assembled computer case?

The main reasons for leakage behind the computer case are:

1. The biggest reason is that there is no ground wire connected to the power socket of the computer. Although it looks like a three-pin power plug, the thimble ground The line is not connected.

2. The second reason is that when old computers use CRT monitors, there are high-voltage packages and large capacitors inside, which contain a lot of static electricity and are returned to the host through the monitor data cable, making the chassis electrified. Third, the static electricity carried by the large capacitors on general computer motherboards and other electronic devices makes the chassis electrified. Fourth, there is a problem with the host power supply itself, causing leakage. Let’s replace the power supply

Is it common to assemble computer cases?

generic.

is universal, but you should note that there are differences in sizes.

A large motherboard can be used with a large chassis, and a small motherboard can be used in both large and small chassis.

Some small cases can also support large motherboards. The motherboard specifications indicate which motherboards are supported.

The highest configuration to assemble a computer case?

Intel i99980XE boxed, 17,299 pieces, Asus X299 R6E motherboard, 10,000 pieces, Corsair 16GDDR43200 Platinum Ruler Blocks, ASUS RTX2080ti-O11G Raptor, two sheets, 25,999 blocks, Corsair AX1600i rated 1600W power supply, 2,999 blocks, ASUS RGB RGB GX601 Helios chassis, 1,899 blocks, Corsair 150iPRORGB integrated water-cooled 360 radiator, 1,299 blocks, Samsung C49RG90SSC monitor 4K resolution Rate + 120 refresh rate 48.8-inch curved screen, 16,999 yuan,

Can a computer be assembled into a mac chassis?

MAC signs should not assemble regular compatible computers. Because when MAC first appeared, it adopted a standard that was incompatible with ordinary computers. Just because different hardware standards are implemented on the hardware, the internal components of the two cannot be used universally. The indicators of the internal components of the two machines are also different. In terms of the price-performance ratio of the internal structure, both have their own advantages and disadvantages.

What kind of chassis should I choose for assembling a computer?

I like side-transparent chassis. I like to play games, so the requirement for the chassis is to have good heat dissipation. The computer host chassis I assembled recently is Patriot, Daybreak X chassis, with a vertically mounted graphics card. Yes, the side-transparent chassis has light effects after assembly and has good heat dissipation.

Can I assemble the Lenovo computer case by myself?

Lenovo computer chassis can be assembled by yourself. Since Lenovo computer motherboards and power supplies are all standard, we can use other brands of chassis to replace Lenovo computer Jixiang. Remove the Lenovo computer motherboard and power supply. After downloading, install it into a new chassis. At the same time, install the hard disk and other components in the chassis so that it can be used normally by connecting a few signal lines.

How to assemble a new computer from an old chassis?

After removing the old motherboard and installing the new motherboard, you can install new accessories on the new motherboard.

What should I do if the computer main case leaks?

Phenomenon: When you touch the metal shell of the computer case with your hands, you will feel a slight vibration or a numb feeling.

This is static electricity leakage caused by improper grounding. This phenomenon will occur when exposed metal parts such as printers are touched. The phenomenon disappears immediately after grounding.

Why does the computer host I just bought have power, but a few days later it feels like it is out of power? 1. Because the electrostatic voltage and current of computers are not very large, their values ​​change at any time with the humidity of the air. When the voltage and current are small, you won't feel it. 2. Place your host on a grounding body.

Nowadays, desktop computer plug cords are all equipped with grounding wires, and laptops have also been replaced with grounded plugs. So quickly replace your socket with a three-hole one, and do a good job of grounding it. This not only eliminates static electricity, but also eliminates part of the electromagnetic radiation, which protects the electronic components of the computer.

If your computer power cord is not three-core, just connect a ground wire to the metal shell of the chassis.

Hurry up and try it!

How to solve the problem of computer case leakage?

It is recommended that you first use a wire to connect the chassis to a metal object, such as a metal radiator, aluminum alloy window, water pipe and other large-area metal objects. The connection effect is better if there are no metal objects on the direct ground surface. If that doesn't work, please continue looking at the solutions below.

1. Power supply

Solution: Remove the power supply from the chassis, disassemble the EMI circuit of the power supply to see if it is complete, and remove the plastic film or mica sheet between the spacer component and the metal shell of the power supply. Has the insulation effect been lost? Has the internal capacitor of the power supply exploded? If there is a problem, you can create a high-temperature resistant plastic film to form a shielding barrier between the component and the power supply casing. If it cannot be solved, we recommend Replace the power supply.

2. Motherboard

Solution: When the motherboard leaks electricity, the feeling when you touch it is relatively strong, almost the same as the power supply leaking electricity, and there will be an obvious tingling sensation. Moreover, the leakage of the computer motherboard will also cause all the components to be charged. It is best to remove the motherboard to bare points. If it is still charged, it means that the internal wiring of the motherboard may be deformed, and it is recommended to replace the motherboard.

3. The chassis itself

Solution: Generally, behind the front panel of the chassis, there is a PCB circuit board that connects the motherboard audio, signal, switch, and USB expansion. We also need to check this circuit board And whether the wires connecting the circuit board have insulation failure, component short circuit, or burnout. If so, they can be repaired or replaced with the help of simple electrician common sense and electrician tools.

4. External wiring

Sometimes computer leakage is not necessarily caused by hardware failure inside the chassis. It may be caused by broken wires touching the chassis.

Solution: Open the chassis and check the wiring inside and outside the chassis to see if the wires are damaged and whether the metal parts of the wires are exposed and come into contact with other accessories and the chassis. If so, replace them immediately. Or directly choose wires wrapped with nylon mesh, which can also provide better insulation effect.

Is the computer motherboard power supply chassis leaking?

Safety first, it’s better to seek help from professionals.

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