Lenovo Flex System x480 X6 Compute Node Installation And Service Manual page 943

3. If no problem is observed on the DIMM connectors or the problem persists, replace the DIMM
identified by LightPath and/or event log entry. If this is a flash DIMM, make sure it is still under
warranty before replacing it.
4. If problem re-occurs on the same DIMM connector, replace the other DIMMs on the same
memory channel. If this is a flash DIMM, make sure it is still under warranty before replacing it
5. (Trained service technician only) Replace Processor. Inspect Processor socket for foreign
debris or damage. If debris is found, remove debris. If socket is damaged, replace the system
board first.
6. (Trained Service technician only) If error recurs, replace the system board.
• S.51006 [S.51006] : A memory mismatch has been detected. Please verify that the memory
configuration is valid. One or More Mismatched DIMMs Detected
Severity
Error
User Response
Complete the following steps:
1. Could follow an uncorrectable memory error or failed memory test. Check log and service that
event first. DIMMs disabled by other errors or actions could cause this event.
2. Verify that the DIMMs are installed in the correct population sequence, according to the service
information for this product.
3. Disable memory mirroring and sparing. If this action eliminates the mismatch, check IBM
Support site for information related to this problem.
4. Reflash UEFI firmware.
5. Replace DIMM. If this is a flash DIMM, make sure it is still under warranty before replacing it.
6. (Trained Service technician only) Replace Processor.
• S.51009 [S.51009] : No system memory has been detected. No Memory Detected
Severity
Error
User Response
Complete the following steps:
1. Make sure that one or more DIMMs are installed in the server, and resolve any other currently
existing memory errors.
2. If no memory fault is recorded in the logs and no DIMM connector error LEDs are lit, verify that
all DIMM connectors are enabled using the Setup utility or the Advanced Settings Utility (ASU).
3. Re-Install all DIMMs verifying the correct population sequence, according to the service
information for this product.
4. (Trained service technician only) Replace Processor. Inspect Processor socket for foreign
debris or damage. If debris is found, remove debris. If socket is damaged, replace the system
board first.
5. (Trained Service technician only) If error recurs, replace the system board.
• S.58008 [S.58008] : A DIMM has failed the POST memory test. DIMM Failed Memory Test
.
Chapter 6 Troubleshooting
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