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January 22nd, 2025 16:19
R940 NVDIMMs on socket are installed in unsupported manner - UEFI0375 UEFI0351
Sharing a FIX:
After replacing Failed NVDIMM OPTANE MEMORY on R940 DIMM 10, came up to this error.
NOTE: IDRAC shows that the Memory DIMM D10 as green and no errors.
Error occurred AFTER replacement of DIMM.
FIX:
System Bios -> Memory Settings -> Scroll Down -> Persistent Memory ->
Intel Persistent Memory -> Regional Configuraton -> Create Goal Config -> Persistent change to 100 -> Back and Finish and Reboot.
#IWork4Dell
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DELL-Marco B
Moderator
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3.9K Posts
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June 13th, 2025 14:55
Hello,
where dimm are installed?
You have to be sure that it is installed in CPU slot 1 and 2
try also to do this in the bios
Configure Persistent Memory:
Thanks
YATV
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June 13th, 2025 05:15
Hello, Ike Rhee.
Were you able to resolve this issue?
DELL-Joey C
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June 13th, 2025 07:53
Hi,
Ike Rhee's post is a sharing on what is the resolution if you face the issue with an error after placing the NVDIMMs; https://www.dell.com/support/manuals/en-us/poweredge-r940/dcpmm_ug_pub/events-during-boot-time?guid=guid-8ed9212d-dc2d-4418-8dc9-b99c9961dc01&lang=en-us UEFI0375 Unable to apply the Persistent Memory (PM) region configuration of the NVDIMM in the memory slot <slot Number> and UEFI0351: The NVDIMMs on socket <socket Number> are installed in an unsupported (configuration) manner. Major Error code <major MRC error code> Minor Error code <minor MRC error code>. Data in the Persistent Memory (PM) region may not be accessible.
YATV
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June 13th, 2025 11:03
Hi,
I'm having a similar issue:
What am I doing wrong?
It seems like the memory isn't where it should be, but the documentation
https://www.dell.com/support/manuals/es-ar/poweredge-r640/per640_ism_pub/nvdimm-n-memory-module-installation-guidelines?guid=guid-d4d658c1-3081-4dc5-b443-04d2ed35fbac&lang=en-us
says it's correct.
How can I fix this?
Thanks for your help!
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