PowerEdge：R740 - 新增記憶體後，多個記憶體回報多位元錯誤 （MBE）

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.

檢查 TSR 記錄，當記憶體中回報 MBE 錯誤時，也會出現UEFI0355錯誤。資訊如下。

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.

再次檢查支援的已用 CPU 記憶體大小。

使用的 CPU 為 Xeon 黃金級 5218 X2。
單個 CPU 支援 1 TB 記憶體大小。

在此配置下，2 個 CPU 最多可支援 2 TB 的記憶體。

伺服器的記憶體容量已超出 CPU 的支援範圍。

將記憶體容量降低至 2 TB。

根據安裝與維修手冊中的系統記憶體指引來安裝記憶體。

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