Lenovo System x3750 M4 Installation And Service Manual page 519

User Response
Complete the following steps:
1. If the DIMM was disabled because of a memory fault, follow the procedure for that event.
2. If no memory fault is recorded in the logs and no DIMM connector error LEDs are lit, re-enable
the DIMM through the Setup utility or the Advanced Settings Utility (ASU).
3. If the problem persists, Power cycle the system.
4. Reset the IMM to default settings.
5. Reset UEFI to default settings.
6. Update the IMM and UEFI firmware.
7. Replace the system board.
Related links
– "Updating the firmware" on page 131
– "Removing the system board" on page 299
– "Replacing the system board" on page 301
• 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 %. : DIMM PFA
Threshold Exceeded
Severity
Warning
User Response
Complete the following steps:
1. If the system 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: The event Log might contain a recent 00580A4 event denoting detected change in
DIMM population that could be related to this problem.)
2. Check the 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. If PFA follows a moved DIMM
to any DIMM connector on the different memory channel, replace the moved DIMM.
5. Check the IBM support site for an applicable Service Bulletins (Service bulletins) that applies
to this memory error. (Link to IBM support service bulletins)
6. If the 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. Remove the affected processor and inspect the processor socket pins for damaged or
mis-aligned pins. If damage is found or the processor is an upgrade part, replace the system
board.
8. Replace affected processor.
9. Replace the system board.
Related links
Appendix C. UEFI/POST error codes
505