Lenovo 5457 Installation And Service Manual page 555

3. (Trained service technician only) Replace system board.
• W.305800D: [W.305800D] DRIVER HEALTH PROTOCOL: Disconnect Controller Failed. Requires
'Reboot'.
[W.305800D] DRIVER HEALTH PROTOCOL: Disconnect Controller Failed. Requires 'Reboot'.
Severity: Warning
User Response:
Complete the following steps:
1. Reboot the system to reconnect the controller.
2. If problem persists, switch to backup UEFI or reflash current UEFI image.
3. (Trained service technician only) Replace system board.
• W.305800E: [W.305800E] DRIVER HEALTH PROTOCOL: Reports Invalid Health Status Driver.
[W.305800E] DRIVER HEALTH PROTOCOL: Reports Invalid Health Status Driver.
Severity: Warning
User Response:
Complete the following steps:
1. Reboot the system.
2. If problem persists, switch to backup UEFI or reflash current UEFI image.
3. (Trained service technician only) Replace system board.
• W.3808000: [W.3808000] An IMM communication failure has occurred.
[W.3808000] An IMM communication failure has occurred.
Severity: Warning
User Response:
Complete the following steps:
1. Reset IMM.
2. Remove AUX power from the node. This will reboot the entire node.
3. Check IBM Support website for an applicable service bulletin or firmware update that applies to this
error.
4. Reflash UEFI Firmware.
5. (Trained service technician only) Replace the system board.
• W.3808002: [W.3808002] An error occurred while saving UEFI settings to the IMM.
[W.3808002] An error occurred while saving UEFI settings to the IMM.
Severity: Warning
User Response:
Complete the following steps:
1. Use F1 Setup, Verify Settings and Save Settings to recover settings.
2. Reset IMM.
3. Remove AUX power from the node. This will reboot the entire node.
4. Check IBM Support website for an applicable service bulletin or firmware update that applies to this
error.
5. Reflash IMM Firmware.
Appendix B. UEFI/POST diagnostic codes
543