In both new and old versions of computer, the CMOS will have to be replaced if it is unable to keep track of time. You might be asked by the computer to set the time and date every time you boot it. You might have realized that your CMOS battery is not in good condition, as you will be able to notice the above signs. You will then have to remove and replace the CMOS battery as soon as possible to avoid dealing with computer complications in the future.
For starters, you will have to switch off the computer and disconnect the power cable. In laptops, you will have to take out the battery before commencing. You will have to make sure you are grounded so that you do not damage the motherboard with static electricity. The CMOS battery can be spotted as a small, silver circular component that is just close to the motherboard.
Once you spot it, you can then remove it quite easily. However, the CMOS battery may be soldered on the motherboard and this means that the whole motherboard will have to be replaced. The CMOS battery plays a vital role in computers, for both old and new version computers. The BIOS is responsible for low-level system tasks. You can enter your computer's BIOS settings screen by pressing a key during boot. The BIOS settings screen allows you to configure low-level settings for your computer's hardware.
These differ across motherboard manufacturers, but some options are universal. An example is changing the computer's boot order the order in which the computer loads operating systems from connected storage. So, if many computers store BIOS settings in non-volatile memory, why do motherboards still come with batteries?
Power the computer on or offthe battery runs all the time. The real time clock is essentially a quartz watch, like an old wristwatch. When the computer is off, the battery provides power for the real time clock to run. This is how your computer always knows the correct time when you power it on.
As we all know from experience, batteries don't last forever. Eventually, a CMOS battery will stop working; they typically last up to 10 years. Regular use of your computer means the CMOS battery lasts longer. Conversely, a battery in a computer that is mostly powered-off will die soonerit's using the battery more, after all. Computer Hardware. Power Supplies. Here are some tell-tale signs that your battery is dying: Invalid configuration will appear on your screen. Run Setup appears on your screen.
Press F1 to continue appears on your screen. Invalid drive specification appears on the screen after you've pressed F1.
Clock Error or Clock Message appears on your screen. The clock on the computer loses time. The computer is constantly showing the wrong date. If your laptop is plugged in and not charging, then the battery might be the culprit. Share Share Tweet Email. Krishnapriya Agarwal 39 Articles Published. Subscribe to our newsletter Join our newsletter for tech tips, reviews, free ebooks, and exclusive deals!
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