![]() Just follow the below mentioned steps to replace your CMOS battery with a newer one.ġ. How to change or replace CMOS batteryĬhanging your motherboard CMOS battery is very simple. If you are changing some BIOS settings and if they are not getting saved and resets to default values when you turn ON your computer then it is the time to change your CMOS battery. If you Windows / OS / BIOS time changes every-time you turn ON your computer then it is clear cut sign that your CMOS battery is dead and needs a replacement. System BIOS shadowed, Video BIOS shadowed.bios cmos battery low cmos wrong memory size.When you power ON your computer and you get following error messages (mentioned below) on POST screen then you have to change your CMOS battery. Here are some signs which can tell you that your CMOS battery is dead and needs a replacement. Here below is the CR2032 (3V) battery which is very common and is used in motherboard, calculators and other small electronic devices.ĬMOS Battery for Motherboard-> CR2032 (3V) When to Change CMOS Battery?ĬMOS battery can last upto 5 or 10 years and if the battery dies then it should be replaced immediately with a new battery. You should not use any other battery for your motherboard otherwise it may cause damage to your motherboard. The CMOS Battery that is used in your motherboard is CR2032 and is rated a 3 Volt. CMOS Battery Number and Voltage Specifications RTC runs all the time even when the computer is switched off, and the power to this clock is supplied by the CMOS battery. It is also called motherboard battery as it used for storing BIOS settings and for running Real Time Clock (RTC) of your computer. Plug the computer and all devices back in.CMOS battery is a small Lithium battery or non-volatile battery located on your motherboard.Wait 1–5 minutes, then reconnect the battery.If the battery is connected to an onboard header with a wire, disconnect the wire from the onboard header.If the battery is in a holder, note the orientation of the + and – on the battery. Gently pry the battery free from its connector.The battery may be in a horizontal or vertical battery holder, or connected to an onboard header with a wire. Disconnect the power cord from the AC power source.Turn off all peripheral devices connected to the computer. ![]() Steps to clear CMOS using the battery method In some systems, you might need to enter BIOS to reset to the factory defaults. In general, CMOS jumper has positions 1–2 and 2–3. Move the jumper from the default position 1–2 to position 2–3 to clear CMOS. Wait 1–5 minutes then move it back to the default position.In general, the CMOS jumper is three pins located near the battery. Locate the CMOS jumper by referring to the motherboard manual and how to clear the CMOS.Open up the system so you can see the motherboard.Steps to clear CMOS using the jumper method See steps for the two methods listed below. The jumper position, time to wait, and location of the jumper are completely dependent on the motherboard. Using a CMOS jumper or a dedicated jumper on the motherboard, generally near the battery.The BIOS is also used to identify and configure hardware in the computer.įor no boot or no display issues, clearing CMOS may help recover the boards because that restores the BIOS default settings. It instructs the computer on how to perform a number of basic functions such as booting and keyboard control. The BIOS is the software stored on the memory chip on the motherboard. ![]() If you have any questions regarding the components on how to clear CMOS on your system, please contact your motherboard vendor for this information.Ĭlick or the topic for details: What is CMOS?Ĭomplementary metal-oxide-semiconductor (CMOS) is a small amount of memory on a computer motherboard that stores the Basic Input/Output System (BIOS) settings. This guide only applies to systems with Intel® Desktop Boxed Processers. Intel disclaims any express or implied warranty relating to sale and/or use of Intel products, including liability or warranties relating to fitness for a particular purpose, merchantability, infringement of any patent copyright, or other intellectual property right. Except as provided in the Intel Terms and Conditions of sale for such products, Intel assumes no liability whatsoever. Performing actions recommended by third-party vendors can result in improper operation, damage to the board or processor, or reduced product life. Intel may supply links to third-party sites, providing such links only constitutes suggestions and should not be mistaken as an endorsement or recommendation for any specific action. Use of unsupported motherboards can result in improper operation, damage to the desktop board or processor, or reduced product life. ![]()
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