9-58 Upgrading Your ServerMemory MirroringThe server supports the Memory Mirroring feature.To use Memory Mirroring feature, select the supported function from the BIOS Setup Utility in theconfiguration enabling the relevant environment build-up.Memory Mirroring FeatureThe memory mirroring feature places a memory board as spare memory in standby state. If thecurrent memory board encounters an uncorrectable error, the memory mirroring feature switches tothe standby memory board. When this feature is used, the current memory board and the standbymemory board should be combined. Available combinations are: Mirroring with a pair of memory boards A and B and a pair of memory boards C and DTo enable the memory mirroring feature, the combined memory boards must have the DIMM ofsame size and capacities.Setting BIOSStart SETUP and select [Advanced] → [Memory Configuration] → [Memory RAS Feature] inorder and set as follows: To enable the memory mirroring feature: Select [Mirror].
