ARCHIVED: What is a CMOS battery, and why does my computer need one?
All personal computers require a small battery on the system board that provides power to the Complementary Metal Oxide Semiconductor (CMOS) chip, even while the computer is turned off. This chip contains information about the system configuration (e.g., hard disk type, floppy drive types, date and time, and the order in which the computer will look for bootable disks). The CMOS battery allows the CMOS to preserve these settings.
This is document adoy in the Knowledge Base.
Last modified on 2013-01-03 00:00:00.
- Fill out this form to submit your issue to the UITS Support Center.
- Please note that you must be affiliated with Indiana University to receive support.
- All fields are required.