What does "motherboard discharge" mean? What is its use and what consequences will it bring?

"Motherboard discharge" refers to a common operation in computer maintenance. Its function is to completely discharge the static electricity stored on the motherboard to ensure the normal operation of the computer. Static electricity is an accumulation of electric charge. If it is not released in time, it may cause various malfunctions or even damage the computer. The operation of motherboard discharge is relatively simple, but it is a very important step for computer repair and assembly. Discharging the motherboard incorrectly can cause damage to the motherboard or other computer components, so be very careful when doing so.

What does "motherboard discharge" mean? What is its use and what are the consequences?

It is mainly used to clear the settings saved in the BIOS. Sometimes the settings are wrong, causing the computer to fail to boot; or the password set in the BIOS is forgotten and needs to be cleared. As long as the power is discharged, the stored information will be gone and the BIOS will return to the factory state. There are two ways to discharge:

One is to find the two discharge pins on the motherboard, and just connect the two pins with a conductive object;

The second is to unplug the battery, but Because there is also a capacitor that can work in a short time, it will not really work until about half an hour after the battery is pulled out.

Many people talk about discharging the motherboard battery. What is it used for?

The answer is as follows: Discharging the motherboard battery is to remove the static electricity stored in the motherboard battery. Static electricity can cause problems or damage to hardware. The method of discharging is to remove the motherboard battery from the motherboard and then short-circuit its connector so that all the charge in the battery is released. Doing this clears static electricity from the motherboard's battery, helping the system run properly. However, it should be noted that correct steps must be followed when discharging, otherwise it may cause battery damage or other problems. Therefore, it is not recommended for non-professionals to discharge the motherboard battery by themselves.

How to discharge the motherboard?

The steps to discharge the motherboard are as follows:

Use the BIOS discharge jumper: Most of the current motherboards are designed with BIOS discharge jumpers to facilitate the user's discharge operation. The discharge jumper is generally a three-pin one (there are also two-pin ones) and is located near the BIOS battery socket on the motherboard. There will be a text label such as BIOS or CLRTC next to the jumper socket. To use this jumper to discharge, first use tweezers or other tools to pull the jumper cap off the pins "1" and "2", then place it on the pins labeled "2" and "3" and remove them. After connecting it, we can know from the discharge instructions that the status is "Clear BIOS", that is, clearing the BIOS. After a short period of contact, the user's various manual settings in the BIOS can be cleared and restored to the motherboard's factory default settings. After discharging the BIOS, you need to remove the jumper cap from the "2" and "3" pins, and then restore it to the original "1" and "2" pins. Note that if the jumper cap is not restored to the Normal state, the computer cannot be started and an alarm will sound.

Remove the power supply battery to discharge the CMOS: The method to remove the power supply battery is to discharge the motherboard. Although this method has a certain success rate, it is not omnipotent. For some motherboards, even if the power supply battery is removed, Even if it is taken out for a long time, the purpose of CMOS discharge cannot be achieved.

It is recommended that you operate under the guidance of professionals.

The correct way to discharge the motherboard?

Correct motherboard discharge method:

1. First unplug the power supply of the chassis and remove the side cover

2. Find the motherboard battery, which is usually a little below the graphics card slot. , the battery in some people's case is blocked by the entire graphics card, so they need to remove the graphics card first

　

3. Press the small metal clip inside and take out the battery

　

4. Then use a screwdriver to simultaneously touch the metal piece under the battery and the metal clip that you just held down with the battery. If you don’t have a screwdriver, remove the battery and press the power button

　

5. Find the front and back of the battery (positive and negative), and then put it back. If you can’t tell the front and back, take a photo with your phone before disassembling

Notes: Before disassembling the case Be sure to cut off the power! Also be careful not to install the battery upside down.

Can the motherboard battery discharge normally for a period of time?

Yes, the motherboard battery will gradually discharge over time. The motherboard battery is used to save BIOS settings and system time, and its lifespan is usually 3-5 years. During normal use, the motherboard battery will gradually discharge, but this is normal. When the motherboard battery is too low, it may cause system time errors or loss of BIOS settings. Therefore, it is recommended to check the motherboard battery power regularly and replace the motherboard battery with a new one when necessary to ensure the normal operation of the system.

What is the use of discharging the computer motherboard battery?

The main function of motherboard discharge is to clear the CMOS settings on your motherboard, including password settings\CPU overclocking\boot sequence items\shielded boards\PC time, etc.; restore all to the basic factory settings. .You can also discharge the static electricity on the motherboard. (Sometimes the computer cannot start or crashes frequently because of static electricity.)

How to discharge the motherboard?

method

1. Use the CMOS discharge jumper. Use this jumper to discharge. Use tweezers or other tools to pull out the jumper cap from the pins "1" and "2", and then put it on the pins marked "2" and "3" to connect them. After a brief contact, It can clear the user's various manual settings in the BIOS and restore the motherboard to the default settings when it leaves the factory. After discharging the CMOS, you need to remove the jumper cap from the "2" and "3" pins to restore it to the original " on the 1" and "2" pins.

2. Take out the COMS battery and discharge it. Find the CMOS battery socket on the motherboard, and then press the buckle on the socket to hold the power supply battery to one side. At this time, the CMOS battery will pop up automatically. Take out the battery carefully.

3. Turn on the power of the host and start the computer. The screen will prompt that the data in the BIOS has been cleared and you need to enter the BIOS to reset. It can be proved that the CMOS has been successfully discharged.

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