F0424 error just occured & we do not have technical support from Cisco.

[snannapaneni]

Possible loss of CMOS settings: CMOS battery voltage on server 8/1 is lower-critical Severity Level:5

Health LED of server 8/1 shows error. Reason: P3V_BAT_SCALED:Voltage Threshold Crossed; Severity Level:4

Both errors occured suddently & we are out of support from Cisco for this blade's serial number.

This is UCSB-B420-M3, please suggest the troubleshooting or solution.

[Wes Austin · Accepted solution]

You can just replace the CMOS battery with a lithium button cell battery from any store that sells small batteries. If you open the server, you will see the small quarter sized CMOS battery.

Cisco no longer replaces these items any longer even with a support contract per:

Lithium Batteries Discontinued as Service Replacement Parts Product Bulletin

[snannapaneni]

Thanks Wes for the quick response. I hope to implement that.