S.51009 [S.51009]
Explanation: No system memory has been detected. No Memory Detected
Severity: Error
User response: Complete the following steps:
1. If any memory errors are logged other than this one, take actions indicated for those codes first.
2. If no other memory diagnostic codes appear in the logs, verify that all DIMM connectors are enabled using the
Setup utility or the Advanced Settings Utility (ASU).
3. If the problem remains, shut down and remove node from chassis and physically verify that one or more DIMMs
are installed and that all DIMMs are installed in the correct population sequence.
4. If DIMMs are present and properly installed, check for any lit DIMM-connector LEDs, and if found, reseat those
DIMMs.
5. Reinstall node in chassis, power on node, then check logs for memory diagnostic codes.
6. (Trained technician only) If the problem remains, replace the processor.
7. (Trained technician only) If the problem remains, replace the system board.
S.58008 [S.58008]
Explanation: A DIMM has failed the POST memory test. DIMM Failed Memory Test
Severity: Error
User response: Complete the following steps:
1. You must AC-cycle the system to re-enable the affected DIMM connector or re-enable manually using the Setup
utility.
2. If the compute node has been recently installed, serviced, moved, or upgraded, check to ensure that DIMMs are
firmly seated and that no foreign material can be seen in the DIMM connector. If either condition is observed,
correct and retry with the same DIMM. (Note: The event Log might contain a recent 00580A4 event denoting
detected change in DIMM population that could be related to this problem.)
3. If problem persists, replace the DIMM identified by LightPath and/or event log entry.
4. If problem recurs on the same DIMM connector, swap the other DIMMs on the same memory channel across
channels one at a time to a different memory channel or processor. If problem follows a moved DIMM to a
different memory channel, replace that DIMM.
5. Check the IBM support site for an applicable service bulletin or firmware update that applies to this memory
error.
6. (Trained service technician only) Remove affected Processor and inspect Processor socket pins for damaged or
mis-aligned pins. If damage is found, or this is an upgrade Processor, replace the system board. If there are
multiple Processor’s, swap Processor’s to move affected Procesor to another Processor socket and retry. If problem
follows the affected Processor (or there is only one Processor), replace the affected Processor.
7. If problem stays with the original DIMM connector, re-inspect DIMM connector for foreign material and remove,
if found. If connector is damaged, replace system board
S.51009 • S.58008
Appendix B. UEFI/POST diagnostic codes 829
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