Explanation
The PFA Threshold limit (correctable error logging limit) has been exceeded on DIMM number % at address %. MC5 Status contains % and MC5 Misc contains %. DIMM PFA Threshold Exceeded
Severity
Error
User response
Complete the following steps:
- 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.)
- 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. Also, check IBM support site for an applicable Service Bulletins (Service bulletins) that applies to this memory error. (Link to IBM support service bulletins)
- If the previous steps do not resolve the problem, at the next maintenance opportunity, swap the 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. If this is a flash DIMM, make sure it is still under warranty before replacing it.
- (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 the system board.
- (Trained service technician only) Remove affected Processor and inspect Processor socket pins for damaged or mis-aligned pins. If socket is damaged, replace the system board.
- (Trained Service technician only) Replace affected processor.
- (Trained Service technician only) Replace the system board.