PowerEdge：R740 — 多个内存在添加内存后报告多位错误 （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.

检查 TSR 日志，虽然内存中报告 MBE 错误，但还存在 UEFI0355 错误。信息如下。

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.

再次检查支持的已用 CPU 的内存大小。

使用的 CPU 是至强 Gold 5218 X2。
单个 CPU 支持 1 TB 内存大小。

在此配置下，2 个 CPU 最多可支持 2 TB 内存。

服务器的内存容量已超出 CPU 的支持范围。

将内存容量减少到 2 TB。

根据安装和服务手册中的系统内存原则安装内存。

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