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Replacing BIOS/CMOS Battery
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Send to PhoneThere are several reasons why the CMOS battery in your computer may need to be replaced. Common signs include the computer losing its time or date settings, and error messages such as "CMOS Read Error," "CMOS Checksum Error," "CMOS Battery Failure," or "System battery voltage is low.".
If you encounter any of these issues, it's likely time to replace the CMOS battery. We'll take you through the steps below.
There are several reasons why the CMOS battery in your computer may need to be replaced. Common signs include the computer losing its time or date settings, and error messages such as "CMOS Read Error," "CMOS Checksum Error," "CMOS Battery Failure," or "System battery voltage is low.".
If you encounter any of these issues, it's likely time to replace the CMOS battery. We'll take you through the steps below.
Steps to Replace the CMOS Battery
Locate Your CMOS Battery
- Open your computer case and locate the CMOS battery on the motherboard. This can differ from chassis to chassis but is normally 2 screws holding in the glass side panel.
Locate Your CMOS Battery
- Open your computer case and locate the CMOS battery on the motherboard. This can differ from chassis to chassis but is normally 2 screws holding in the glass side panel.
- Most computers today use a coin cell CMOS battery, such as the CR2032 battery.
- Some CMOS batteries may be held in place by a metal clip or bar. Avoid bending the clip, as it may prevent the new battery from staying securely in the socket.
- Most computers today use a coin cell CMOS battery, such as the CR2032 battery.
- Some CMOS batteries may be held in place by a metal clip or bar. Avoid bending the clip, as it may prevent the new battery from staying securely in the socket.
Obtain Battery Information
- Take note of the specifications of the existing battery, including its voltage, chemistry, and wiring as the specifics can be different depending on the motherboard. If unsure, remove the battery and bring it to a retail store for identification or get in touch with us so we can assist.
Obtain Battery Information
- Take note of the specifications of the existing battery, including its voltage, chemistry, and wiring as the specifics can be different depending on the motherboard. If unsure, remove the battery and bring it to a retail store for identification or get in touch with us so we can assist.
Removing the Battery
- If your computer uses a coin cell battery, some motherboards may have a clip securing the battery; in this case, push on the clip while pulling the battery out to release it from the socket.
- Note that not all CMOS batteries are removable. If your computer does not have a removable battery, get in contact with our staff, refer to the documentation or contact the manufacturer for guidance.
Removing the Battery
- If your computer uses a coin cell battery, some motherboards may have a clip securing the battery; in this case, push on the clip while pulling the battery out to release it from the socket.
- Note that not all CMOS batteries are removable. If your computer does not have a removable battery, get in contact with our staff, refer to the documentation or contact the manufacturer for guidance.
Insert the New Battery
- Once you have obtained a replacement battery, insert it into the socket in the same orientation as the old battery.
Insert the New Battery
- Once you have obtained a replacement battery, insert it into the socket in the same orientation as the old battery.
What's Next?
Remember to handle the CMOS battery with care and be mindful of ElectroStatic Discharge (ESD) when working inside your computer.
If you need further assistance or have any questions, feel free to reach out for additional support - we're always happy to help!
Remember to handle the CMOS battery with care and be mindful of ElectroStatic Discharge (ESD) when working inside your computer.
If you need further assistance or have any questions, feel free to reach out for additional support - we're always happy to help!
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