Does ASUS laptop have CMOS battery?

The Asus X551CA CMOS battery provides power to the motherboard while the laptop is turned off so that information such as the date, time, and system settings are not erased.

How do I remove the battery from my Asus laptop BIOS?

Find the location of CMOS battery on motherboard, appearance is as below image.

  1. There is a latch used to secure battery on CMOS battery holder.
  2. You can press the latch down by screwdriver.
  3. Battery automatically pops up when the latch gets loose.
  4. Remove the battery and replace with a new one.

What is BIOS battery in laptop?

The CMOS battery powers your laptop’s BIOS firmware, which is responsible for booting up your computer and configuring data flow. You can tell if your CMOS battery has died if your laptop has difficult booting up, if drivers disappear, and if your laptop’s date and time are incorrect.

When should I replace my BIOS battery?

It is recommended that you change the CMOS battery every 5 years. Open the BIOS screen and note all the information on a piece of paper. It’s important that you don’t make any modifications.

Can dead CMOS battery cause computer not start?

Dead CMOS would not really cause a no-boot situation. It simply helps store BIOS settings. However a CMOS Checksum Error could potentially be a BIOS issue. If the PC is literally doing nothing when you press the power button, then it could even be PSU or MB.

What happens if the BIOS battery dies?

Removing the CMOS battery will allow your computer to run however, you will lose the date and time settings, the computer will boot with default BIOS settings or you will have to choose the drive that the OS is installed every time you start your computer.

How long do BIOS batteries last?

If the computer is not plugged in regularly, the life of the battery is normally 3 years. However, the life of the battery gets extended to 5 years when you use it regularly. The battery provides power to CMOS memory and the real-time clock.