Lenovo System x3650 M4 HD Installation And Service Manual page 987

Explanation: CMOS Battery Fault
Severity
Error
User Response
Complete the following steps:
1. If the system was recently Installed, Moved, or Serviced, makesure the batter is properly seated.
2. Check IBM support site for an applicable service bulletin or firmware update that applies to
this error.
3. Replace CMOS Battery
4. (Trained Service technician only) Replace the system board.
Appendix B. UEFI/POST diagnostic codes
975