Not all computer troubleshooting can be handled within your operating system or by troubleshooting specific components. Some key computer functions are governed by the CMOS (Complementary ...

This CMOS battery lets the system clock keep running even when the computer doesn't have power, and allows the motherboard to store small amounts of data in active memory.

When you disconnect your computer’s power supply from the wall, it jumps in to save your BIOS or UEFI settings in your motherboard’s CMOS-RAM (Complementary Metal-Oxide-Semiconductor). But even the ...

How to Check the Battery Level of the BIOS. If you have owned your computer for a few years, you may notice certain problems, such as it may no longer remember the current time and date, certain ...

If something has gone catastrophically wrong with your PC, you may need to reset the CMOS to solve the problem. Here's what you need to know.