W.58001 [W.58001] The PFA Threshold limit (correctable error logging limit) has been exceeded on DIMM
number % at address %. MC5 Status contains % and MC5 Misc contains %.
Explanation: DIMM PFA Threshold Exceeded
Severity: Error
User response: Complete the following steps:
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 the previous steps do not resolve the problem, at the next maintenance opportunity, replace the affected DIMM
(as indicated by LightPath and/or failure log entry).
4. 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.
5. Check IBM support site for an applicable Service Bulletins (Service bulletins) that applies to this memory error.
(Link to IBM support service bulletins)
6. (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.
7. (Trained service technician only) Remove affected Processor and inspect Processor socket pins for damaged or
mis-aligned pins. If damage is found or Processor is an upgrade part, replace system board.
8. (Trained Service technician only) Replace affected processor.
9. (Trained Service technician only) Replace system board.
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.58001 • W.58007
Appendix B. UEFI/POST error codes 609
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