CMOS battery low
Motherboard CMOS coin-cell battery (CR2032) is reading below 2.6V; the cell is ~80% discharged and may fail to hold BIOS settings across the next power cycle. Replacement is scheduled, not emergency; the host runs fine until cold boot.
Remediation
When this rule fires on one of your servers, the dashboard alert detail page renders the full remediation guidance: the command to run, what to verify after, and Furnace's annotation for your specific distro + hardware. Sign in at app.glassmkr.com to see the live alert.