Lenovo System x3500 M5 Type 5464 Installation And Service Manual page 1046

service information for this product/Install guide for population requirements for sparing/paring
modes). If problem follows a moved DIMM to a different memory channel, replace that DIMM.
5. (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 Processor to
another Processor socket and retry. If problem follows the affected Processor (or there is only
one Processor), replace the affected Processor.
6. (Trained technician only)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.51006 A memory mismatch has been detected. Please verify that the memory configuration is
valid. One or More Mismatched DIMMs Detected
Explanation:
Severity
Error
User Response
Complete the following steps:
1. Could follow an uncorrectable memory error or failed memory test. Check the 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.
3. Disable memory mirroring and sparing. If this action eliminates the mismatch, check the Lenovo
Support site for information related to this problem.
4. Update UEFI firmware.
5. Replace the DIMM.
6. Replace the processor.
• S.51009 No system memory has been detected. No Memory Detected
Explanation:
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 ToolsCenter Suite CLI.
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.
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System x3500 M5 Installation and Service Guide