Dell PowerEdge R540 EMC Installation and Service Manual - Page 98
General memory module installation guidelines
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Figure 55. Memory socket locations Memory channels are organized as follows: Table 44. Memory channels Processor Processor 1 Channel 0 Slots A1 and A7 Channel 1 Channel 2 Slots A2 and A8 Slots A3 Processor 2 Slots B1 Slots B2 Slots B3 Channel 3 Slots A4 and A9 Slots B4 Channel 4 Slots A5 and A10 Slots B5 Channel 5 Slots A6 Slots B6 General memory module installation guidelines To 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 during memory configuration, or operate with reduced memory. • 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 DIMM speed of the processors. • Maximum supported speed of the DIMMs NOTE: MT/s indicates DIMM speed in MegaTransfers per second. The system supports Flexible Memory Configuration, enabling the system to be configured and run in any valid chipset architectural configuration. The following are the recommended guidelines for installing memory modules: • All DIMMs must be DDR4. • RDIMMs and LRDIMMs must not be mixed. 98 Installing and removing system components