{"id":2653,"date":"2021-04-14T18:45:48","date_gmt":"2021-04-14T18:45:48","guid":{"rendered":"https:\/\/motherboardsexpert.com\/?p=2653"},"modified":"2021-11-27T20:53:16","modified_gmt":"2021-11-28T01:53:16","slug":"what-happens-when-a-cmos-battery-dies","status":"publish","type":"post","link":"https:\/\/motherboardsexpert.com\/what-happens-when-a-cmos-battery-dies\/","title":{"rendered":"What Happens When a CMOS Battery Dies?"},"content":{"rendered":"\n

The CMOS battery is an important part that is located on your motherboard<\/a>. Its primary purpose is to hold date and time as well as BIOS settings, depending on the motherboard in question. But what happens when a CMOS battery dies?<\/strong><\/p>\n\n\n\n

In a nutshell, not much will happen and you might not even notice at first that your CMOS battery is failing or dead. Your computer will boot up normally and everything will be fine. The only thing that may happen is that Windows will ask you for the date and time. This may happen only once or twice a month, but as the battery gets weaker, it will keep happening.<\/strong><\/p>\n\n\n\n

So why does this all matter?<\/em> How often should you replace your CMOS battery?<\/em> You can learn more about what happens when a CMOS battery dies and how to fix it by reading the rest of the article. Let’s get started!<\/p>\n\n\n\n

What Happens When a CMOS Battery Dies?<\/h2>\n\n\n\n

The CMOS battery holds the date and time settings. If you have ever moved out and your computer stayed unplugged for a few days and when you plugged it back in the date and time settings were still accurate, you have to thank the CMOS battery<\/strong>.<\/p>\n\n\n\n

Another important role that the CMOS battery has is to store your BIOS settings<\/strong>. The battery achieves that by powering your computer’s firmware. Since the firmware requires very little power for this, the CMOS battery suffices. But, just like any other battery, the chemicals inside of it break down which eventually causes it to malfunction and fail.<\/p>\n\n\n\n

So, what happens when a CMOS battery dies?<\/em> How can you tell that it is dead?<\/em> Here are some of the telltale signs of a failing CMOS battery:<\/p>\n\n\n\n