Figure 16. Inside the system1 left expansion card riser assembly 2 right expansion card riser assembly3 right power supply bay 4 right power distribution board5 cable management tray 6 memory riser (8)7 hard drive backplane 8 SAS expander daughter card (primary)9 control panel board 10 release tab for SAS expander daughter card (2)11 release tab for hard drive backplane (2) 12 cooling fan (6)13 left power distribution board 14 left power supply baySystem memoryYour system supports DDR4 ECC registered DIMMs (RDIMMs) and load reduced DIMMs (LRDIMMs) at DDR4 (1.2 V) voltagespecification. It also supports single, dual, and quad rank DIMMs of up to 2400 MHz.NOTE: MT/s indicates DIMM speed in MegaTransfers per second.Memory bus operating frequency can be 1333 MT/s, 1600 MT/s, and 1866 MT/s depending on:• DIMM type (RDIMM and LRDIMM)• DIMM configuration (number of ranks)• Maximum frequency of the DIMMs• Number of DIMMs populated per channel• System profile selected (for example, Performance Optimized, Custom, or Dense Configuration Optimized)• Maximum supported DIMM frequency of the processorsInstalling and removing system components 65