Lenovo NeXtScale nx360 M5 Installation And Service Manual page 837

3. Replace the system board.
• W.305800D [W.305800D]
Explanation: DRIVER HEALTH PROTOCOL: Disconnect Controller Failed. Requires 'Reboot'. DRIVER
HEALTH PROTOCOL: Disconnect Controller Failed. Requires 'Reboot'
Severity
Warning
User Response
Complete the following steps:
1. No action required. The system will reboot at the end of POST.
2. If the problem persists, switch to the backup UEFI image or update the current UEFI image.
3. Replace the system board.
• W.305800E [W.305800E]
Explanation: DRIVER HEALTH PROTOCOL: Reports Invalid Health Status Driver. DRIVER HEALTH
PROTOCOL: Reports Invalid Health Status Driver
Severity
Warning
User Response
Complete the following steps:
1. No action required. The system will reboot at the end of POST.
2. If the problem persists, switch to the backup UEFI image or update the current UEFI image.
3. Replace the system board.
• W.3808000 [W.3808000]
Explanation: An IMM communication failure has occurred. IMM Communication Failure
Severity
Warning
User Response
Complete the following steps:
1. Reset the IMM from the CMM.
2. Use the CMM to remove auxilliary power from the compute node. This will reboot the compute
node.
3. Check the IBM support site for an applicable service bulletin or firmware update that applies to
this error.
4. Update the UEFI Firmware.
5. (Trained service technician only) Replace the system board.
• W.3808002 [W.3808002]
Appendix B. UEFI (POST) error codes
823