The motherboard of PCs and laptops contains a battery that runs the CMOS (complementary metal-oxide-semiconductor) and keeps the computer's clock accurate. Although it may not seem vital to the ...

How often should I change the battery? Ideally, this battery is due for a replacement once every five years and must be replaced with great care to avoid causing other problems in the PC. Saving BIOS ...

I've got a 7 year old Lenovo Thinkpad x230 and my gf has the same year Dell Inspiron. Thinking of replacing the CMOS batteries. They both work just fine after replacing spinning rust with SSDs. The ...

I believe that the PC I just built has a board that may have been in the box for maybe 3 years before I put power to it. I'm not concerned; the battery is the kind with the plastic coating and the ...

CMOS stands for Complementary Metal Oxide Semiconductor. It is a small battery that provides a continuous power supply to the CMOS chip. A CMOS chip stores BIOS settings. When a CMOS battery dies, you ...