166-909-001 IMM I2C Test Failed
Explanation: IMM Indicates failure in the VPD bus (Memory Drawer BUS 0).
Severity: Error
Serviceable: Yes
Recoverable: No
Automatically notify Support: No
User response: Perform the actions mentioned one at a time and try the test after each action:
1. Turn off the system and disconnect it from power. Wait for 45 seconds. Reconnect it to power.
2. Make sure that DSA and BMC/IMM are at the latest level.
3. Reseat the Memory Drawer.
4. Reseat PCIe/power card.
5. Reseat the CPU card.
6. Run the test again.
7. If failure remains, refer to "Troubleshooting by symptom" in the system "Installation and Service Guide" for the
next corrective action.
Related Links:
v IBM Support Website
v Latest level of DSA
v Latest level of BMC/IMM
166-910-001 IMM I2C Test Failed
Explanation: IMM Indicates failure in the Voltage Regulator bus (Memory Drawer BUS 1).
Severity: Error
Serviceable: Yes
Recoverable: No
Automatically notify Support: No
User response: Perform the actions mentioned one at a time and try the test after each action:
1. Turn off the system and disconnect it from power. Wait for 45 seconds. Reconnect it to power.
2. Make sure that DSA and BMC/IMM are at the latest level.
3. Reseat the Memory Drawer.
4. Reseat PCIe/power card.
5. Reseat the CPU card.
6. Run the test again.
7. If failure remains, refer to "Troubleshooting by symptom" in the system "Installation and Service Guide" for the
next corrective action.
Related Links:
v IBM Support Website
v Latest level of DSA
v Latest level of BMC/IMM
166-909-001 • 166-910-001
Appendix A. DSA diagnostic test results 359
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