Replacing the CMOS battery on a motherboard

Replacing the CMOS battery on a motherboard is a relatively straightforward process, but it's essential to handle it carefully to avoid damaging the motherboard or other components. Here's a step-by-step guide:

1. Gather Supplies:

• A new CMOS battery (usually a CR2032 lithium coin cell battery).
• Screwdriver (if necessary to access the battery compartment).

2. Power Off and Unplug:

• Shut down your computer completely and unplug it from the power outlet to avoid electrical shock.

3. Open the Case:

• Depending on your computer case, you may need to remove side panels or access panels to reach the motherboard. Use a screwdriver to remove any screws holding the panels in place.

4. Locate the Battery:

• Look for the CMOS battery on the motherboard. It's typically a small, silver coin cell battery located near the CPU socket or PCIe slots. It may be held in place by a clip or a small plastic holder.

5. Remove the Old Battery:

• Carefully push or slide the clip holding the battery, or use your fingers to gently pry the old battery out of its holder. Take note of the battery's orientation so you can install the new one correctly.

6. Install the New Battery:

• Insert the new CMOS battery into the holder with the correct orientation (usually with the positive side facing up). Ensure that the battery is securely seated in its holder.

7. Close the Case:

• Put the side panels or access panels back on the computer case and secure them with screws if necessary.

8. Power On and Test:

• Plug in your computer and power it on. Check if the BIOS settings are retained properly, indicating that the new CMOS battery is working correctly.

9. Set BIOS Settings (If Necessary):

• In some cases, replacing the CMOS battery may reset the BIOS settings to default. If this happens, you may need to enter the BIOS setup utility and configure the settings according to your preferences.

10. Dispose of the Old Battery Properly:

• Dispose of the old CMOS battery safely according to local regulations for electronic waste disposal. Lithium batteries should not be thrown in the regular trash.

By following these steps, you can safely replace the CMOS battery on your motherboard and ensure that your computer's BIOS settings are retained properly.