NEC Express5800/R120h-2M Maintenance Manual page 44

Chapter 1 Maintenance

Perform the procedure below.
1. Remove the processor and replace it with the previously installed processor type.
2. Reboot the server.
3. Save the contents of the NVDIMM to other media to preserve the data.
4. Remove the processor and replace it with the new processor.
5. Sanitize all NVDIMMs in the system.
6. Restore data to the NVDIMM.
7. Remove the processor and replace it with the previously installed processor type.
 Was the NVDIMM moved?

Perform one of the procedures below.
- To preserve data, install the NVDIMM in the location indicated by the message.
- Sanitize all NVDIMMs indicated by the message. The data on the NVDIMM is not available after
sanitization.
[?] QPI Snoop Configuration error message for NVDIMMs is received and all NVDIMMs on a processor are
disabled

Perform one of the procedures below.
- Change the QPI Snoop Configuration setting to match the previous system.
- Sanitize all NVDIMMs indicated by the error. The data on the NVDIMM is not available after
sanitization.
[?] POST error message or IML message is displayed, and NVDIMMs are disabled in the system (the
NVDIMM-N Memory Interleaving is enabled, then all NVDIMMs on processor X are disabled)
 The NVDIMM was previously being used in a server with NVDIMM-N Memory Interleaving enabled, but is
this server configured for NVDIMM-N Memory Interleaving disabled?

Perform one of the procedures below.
- Change the NVDIMM-N Memory Interleaving setting for the NVDIMM to the same setting for the server
and then, reboot the server. Below is the procedure to change the settings.
-- If the NVDIMM was previously installed in a server that had NVDIMM-N Memory Interleaving
enabled, enable NVDIMM-N Memory Interleaving in System Utility.
- Sanitize all NVDIMMs indicated. All data on the NVDIMM will not be available after sanitization.
[?] POST error message or IML message is displayed, and NVDIMMs are disabled in the system (the
NVDIMM-N Memory Interleaving is disabled, then only affected NVDIMMs are disabled)
 The NVDIMM was previously being used in a server with NVDIMM-N Memory Interleaving disabled, but is
this server configured for NVDIMM-N Memory Interleaving enabled?

Perform one of the procedures below.
- Change the NVDIMM-N Memory Interleaving setting for the NVDIMM to the same setting for the server
and then, reboot the server. Below is the procedure to change the settings.
-- If the NVDIMM was previously installed in a server that had NVDIMM-N Memory Interleaving
disabled, disable NVDIMM-N Memory Interleaving in System Utility.
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Express5800/R120h-1M, R120h-2M Maintenance Guide
5. Troubleshooting