Dell EMC XC Core XC750xa Installation And Service Manual

Table 18. Memory channels (continued)Processor ChannelA ChannelB Channel C Channel D Channel E Channel F Channel G Channel HProcessor2Slots B1and B9Slots B5and B13Slots B3and B11Slots B7and B15Slots B2 andB10Slots B6and B14Slots B4 andB12Slots B8 andB16Table 19. Supported memory matrixDIMM type Rank Capacity DIMM ratedvoltage andspeedOperating Speed1 DIMM perchannel (DPC) 2 DIMMs perchannel (DPC)RDIMM 1 R 8 GB DDR4 (1.2 V), 3200MT/s3200 MT/s 3200 MT/s2 R 16 GB, 32 GB, 64GBDDR4 (1.2 V), 3200MT/s3200 MT/s 3200 MT/sLRDIMM 4 R 128 GB DDR4 (1.2 V), 3200MT/s3200 MT/s 3200 MT/sIntel persistentmemory (BPS)2R 128 GB, 256 GB,512 GBDDR4 (1.2 V), 3200MT/s3200 MT/s 3200 MT/sGeneral memory module installation guidelinesTo ensure optimal performance of your system, observe the following general guidelines when configuring your system memory.If your system's memory configurations fail to observe these guidelines, your system might not boot, stop responding duringmemory configuration, or operate with reduced memory.The memory bus may operate at speeds of 3200 MT/s or 2933 MT/s, depending on the following factors:● System profile selected (for example, Performance Optimized, or Custom [can be run at high speed or lower])● Maximum supported DIMM speed of the processors● Maximum supported speed of the DIMMsNOTE: MT/s indicates DIMM speed in MegaTransfers per second.NOTE: FRM-NUMA is supported.The system supports Flexible Memory Configuration, enabling the system to be configured and run in any valid chipsetarchitectural configuration. The following are the recommended guidelines for installing memory modules:● All DIMMs must be DDR4.● x4 and x8 DRAM based memory modules can be mixed.● If memory modules with different speeds are installed, they operate at the speed of the slowest installed memory module(s).● Populate memory module sockets only if a processor is installed.○ For single-processor systems, sockets A1 to A16 are available.○ For dual-processor systems, sockets A1 to A16 and sockets B1 to B16 are available.● In Optimizer Mode, the DRAM controllers operate independently in the 64-bit mode and provide optimized memoryperformance.Table 20. Memory population rulesProcessor Configuration Memory population Memory populationinformationSingle processor Optimizer (Independentchannel) population orderA{1}, A{2}, A{3}, A{4}, A{5},A{6}, A{7}, A{8}, A{9},A{10}, A{11}, A{12}, A{13},A{14}, A{15}, A{16}1, 2, 4, 6, 8, 12 or 16 DIMMsare allowed.Dual processor (Start withprocessor1. Processor 1Optimizer (Independentchannel) population orderA{1}, B{1}, A{2}, B{2}, A{3},B{3}, A{4}, B{4}, A{5}, B{5},A{6}, B{6}, A{7}, B{7} A{8},2, 4, 8, 12, 16, 24 and32 DIMMs per systemsupported.Installing and removing system components 57