PowerEdge: R740 – Flera minnen rapporterar multibitfel (MBE) efter tillägg av minne

Summary: Det ursprungliga R740-minnet uppgraderades till en 24X128G-konfiguration. När uppgraderingen är klar kommer alla minnen utom A1 B1 att rapportera MBE-fel. Byt ut det andra kortplatsminnet till A1 B1 för testning. Problemet följer inte minnet. ...

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Symptoms

2021-10-29 06:41:29	Multi-bit memory errors detected on a memory device at location(s) DIMM_B12.
2021-10-29 06:41:29	Multi-bit memory errors detected on a memory device at location(s) DIMM_B6.
2021-10-29 06:41:29	Multi-bit memory errors detected on a memory device at location(s) DIMM_B11.
2021-10-29 06:41:29	Multi-bit memory errors detected on a memory device at location(s) DIMM_B5.
2021-10-29 06:41:28	Multi-bit memory errors detected on a memory device at location(s) DIMM_B10.
2021-10-29 06:41:28	Multi-bit memory errors detected on a memory device at location(s) DIMM_B4.
2021-10-29 06:41:28	Multi-bit memory errors detected on a memory device at location(s) DIMM_B9.
2021-10-29 06:41:27	Multi-bit memory errors detected on a memory device at location(s) DIMM_B3.
2021-10-29 06:41:27	Multi-bit memory errors detected on a memory device at location(s) DIMM_B8.
2021-10-29 06:41:27	Multi-bit memory errors detected on a memory device at location(s) DIMM_B2.

Kontrollera TSR-loggen. MBE-felet rapporteras i minnet men det finns även ett UEFI0355 fel. Informationen är som följer.

2021-10-29 19:41:41 496 UEFI0355 All the NVDIMMs are disabled because the value of memory capacity of all the installed NVDIMMs has exceeded the maximum value supported by the processor.


 

Cause

Kontrollera igen minnesstorleken som den använda CPU:n stöds.

CPU:n som används är en Xeon Gold 5218 X2.
En enda processor stöder en minnesstorlek på 1 TB.

Med den här konfigurationen har två processorer stöd för upp till 2 TB minne.

Minneskapaciteten på servern har överskridit stödintervallet för processorn.

Resolution

Minska minneskapaciteten till 2 TB.

Installera minnet enligt riktlinjerna för systemminne i installations- och servicehandboken.

https://dl.dell.com/content/manual31379452-dell-poweredge-r740-installation-and-service-manual.pdf?language=en-us

 

Affected Products

OEMR R740, PowerEdge R740
Article Properties
Article Number: 000193244
Article Type: Solution
Last Modified: 26 May 2025
Version:  3
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