![]() ![]() Still, the motherboard uses a real-time clock because the clock is always active, whether the computer is active or not. #CMOS Battery In DetailīIOS settings stores in a non-volatile memory without the necessity of a battery. If CMOS lose its power the system clock resets. BIOS protect the data each time the computer turns off. Hardware settings, system time and date are the parts of BIOS settings. You will be required to set the current time and date of your PC as the final step.What Is A CMOS Battery And Why It Is Needed At The First Place?Ī computer whether it is a laptop or a desktop has a Motherboard where a small amount of memory known as CMOS (complementary metal-oxide-semiconductor) stores the BIOS settings. Reconnect your power: Finally, connect all cables and turn on the power.Replace the side panel and secure it with screws as before. Ensure that you install the new battery in the same orientation as the older one. Replace the CMOS battery: Get a new battery with the same ratings as the older one and replace it in the socket.Note and remember the direction of the battery placed. Locate the battery: Find the battery on the motherboard, and remove it with the help of a screwdriver.Gently hold the side panel and pull it outwards to slide it off. Unscrew and remove: Unscrew all the screws at the rear end of the PC securing the side panel.This step ensures the removal of any flow of current in the components of the PC. Unplug power: Now, unplug the power cable and press the power button of the PC.Remember to note down the location of each cable to be able to correctly connect them later. Remove cables: Remove all cables except for the power cord.The CMOS battery on the motherboard can be replaced by following these steps: How to Replace the CMOS Battery from a Desktop Computer ![]() You may find BIOS default back to the original settings, so you will have to set the date and time again. Final testing: Plug the laptop into the power source and switch on the laptop.Tighten them with just enough force that you don't damage the plastic casing. Rescrew the laptop casing: Re-screw all the screws of the laptop casings.Check and confirm once again that you have placed the battery in the same orientation as the older one. Insert the new battery: Now, place the new battery in the empty socket.Before removing the battery, make sure to note the battery’s orientation so that you don't place the new battery into the wrong poles. Be careful while handling the motherboard, as it is the most important part of your laptop. Locate and take out the CMOS battery: Remove the battery from the holding socket.Carefully remove the casing and look for the shiny metallic coin-shaped lithium battery. Unscrew the laptop's casing: Flip the laptop over and use a star-head screwdriver to remove all the screws.Also, make sure to remove all cables and attachments from the laptop, including peripherals. Remove power and other cords: Shut down your laptop and disconnect it from the power source.You could also consider using an anti-static wrist strap. Also, rub your hands thoroughly against a separate metallic object to remove any static charge. A flat and conductive foam pad is best to work on when replacing CMOS batteries. ![]() So, it is advisable to avoid working on a carpeted surface.
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