Lenovo NeXtScale nx360 M4 Installation And Service Manual page 560

1. If the node has recently been installed, moved, serviced, or upgraded, verify that the DIMM
is properly seated and visually verify that there is no foreign material in any DIMM connector
on that memory channel. If either of these conditions is found, correct and retry with the same
DIMM. (Note: Event Log may contain a recent 00580A4 event denoting detected change in
DIMM population that could be related to this problem.)
2. Check IBM support site for an applicable firmware update that applies to this memory error. The
release notes will list the known problems the update addresses.
3. If PFA re-occurs on the same DIMM connector, swap the other DIMMs on the same memory
channel one at a time to a different memory channel or Processor. (check service information for
this product/Install guide for population requirements for sparing/paring modes). If PFA follows a
moved DIMM to any DIMM connector on the different memory channel, replace the moved DIMM.
4. (Trained service technician only) If problem continues to re-occur on the same DIMM connector,
inspect DIMM connector for foreign material and remove, if found. If connector is damaged,
replace system board.
5. (Trained service technician only) Inspect processor socket for foreign debris or damage.
If debris is found, remove debris.
6. (Trained service technician only) Remove affected processor and inspect processor socket pins
for damaged or mis-aligned pins. If damage is found on processor, replace system board.
7. (Trained Service technician only) Replace affected processor.
• W.58007 [W.58007] Invalid memory configuration (Unsupported DIMM Population) detected. Please
verify memory configuration is valid.
Explanation: Unsupported DIMM Population
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. Ensure that the DIMM connectors are populated according to the guidelines in the service
information for this product.
• W.580A1 [W.580A1] Invalid memory configuration for Mirror Mode. Please correct memory
configuration.
Explanation: Unsupported DIMM Population for Mirror Mode
Severity
Error
User Response
Complete the following steps:
1. If a DIMM connector error LED is lit, resolve the failure.
2. Make sure that the DIMM connectors are correctly populated for mirroring mode, according to
the service information for this product.
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IBM NeXtScale nx360 M4 Installation and Service Guide