Lenovo 3633 Installation And Service Manual page 473

Complete the following steps:
1. If the compute 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:
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 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.
• W.68002: [W.68002]
[W.68002]
Severity: Error
User Response:
Complete the following steps:
1. If the system was recently installed, moved, or serviced, make sure the battery is properly seated.
2. Check the IBM support site for an applicable service bulletin or firmware update that applies to this
error.
3. Replace the CMOS battery.
4. Replace the system board.
Appendix B. UEFI (POST) error codes
459