On the computer motherboard, the battery is usually located in a small circular slot and is called a CMOS battery. The purpose of this battery is to save the computer's BIOS settings and clock information. With this battery, even if the computer loses power, it can still retain its previous settings after restarting. The battery generally adopts CR2032 model, with a diameter of about 20mm and a thickness of about 3.2mm. On older motherboards, the battery may be located elsewhere, such as under the PCI slot or on the back of the motherboard. If you need to replace the battery, it is recommended to turn off the power first and ensure it is grounded before proceeding with caution to avoid damaging the motherboard.
The motherboard battery is used to record the time of the computer system, that is, to maintain the accuracy of the system clock. When the battery is insufficient, the time will return to the factory date, and to record the hardware information used during startup, that is, to maintain the accuracy of the system clock. CMOS BIOS information. So where is the computer motherboard battery? Where is the battery on the computer motherboard? Open the main case. Near the south bridge on the motherboard, there is a silver-white disc button battery with a plus sign on the back and about two centimeters in diameter. Battery replacement Step 1: First purchase a new motherboard BIOS battery. Make sure it is the same model as the battery on your computer. Step 2: Turn off the computer's power. Take out the battery and carefully take it out! Then press the catch on the battery slot and the battery will pop out. There are three common ones. "External button type"? To remove the battery, just press down the button next to the battery holder, and then push the battery out. The second type is the "button-up" battery holder. The button of this battery holder is made above the battery. When you want to remove the battery, just pull the button outward and the battery will pop out automatically. The third type is the "press-on" battery holder. It is very simple to remove the battery, just push the battery out. Step 3: Take out the new battery and install it. Pay attention to the direction of the positive and negative poles of the mercury battery, and then replace the battery according to the reverse action of removing the battery just now, and it is installed. Then close the case cover. Then restart the computer and make various BIOS settings. I hope the above sharing method on where the computer battery is can help everyone solve the problem.
The motherboard has no battery to be found.
The computer motherboard battery is usually located in the lower left corner of the motherboard. It is a button battery, and the model is usually R2032.
The function of the motherboard battery is to continue to provide power to the BIOS module on the motherboard to save the BIOS setting information after the computer is turned off. Since the BIOS is powered by a CMOS battery, if the CMOS battery is removed from the motherboard, the data in the BIOS will be restored to factory settings, and all setting information will be lost. This effect is the same as discharging with a jumper. The computer can be started normally without a battery, but some motherboards also have special settings that prevent the computer from being turned on unless the presence of the COMS battery is detected. This information includes time and some hardware settings, etc.
The button battery on the motherboard is called a CMOS battery in the computer. It is used to store data in part of the flash memory on CMOS. For example, if we change certain configurations in the motherboard CMOS, they cannot be saved if the battery is dead.
CMOS batteries are easy to find and can be seen directly on the motherboard. That thing needs to be replaced regularly. Because it will run out of power after a long time. However, the original battery on the motherboard generally has a lifespan of 3 to 5 years.
1. How often you need to replace the motherboard battery needs to be determined based on your usage. If the computer is used frequently, it can be replaced once a year; if the computer is not used frequently and there is no physical damage, it can be replaced once every 2-3 years.
2. In addition, when the following conditions occur in the computer, it means that the motherboard battery needs to be replaced. The time displayed by the computer always stays in the past. When the computer is turned on, a black screen always appears.
How often you need to replace the motherboard battery depends on your usage. If the computer is used frequently, it can be replaced once a year; if the computer is not used frequently and there is no physical damage, it can be replaced once every 2-3 years.
2. In addition, when the following conditions occur in the computer, it means that the motherboard battery needs to be replaced. The time displayed by the computer always stays in the past. When the computer is turned on, a black screen always appears.
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