Figure 24. Installing the drive backplane
Next steps
1 Install the drives in their original locations.
2 Follow the procedure listed in After working inside your system.
Related link
Installing the drive cage
Installing a drive carrier
System memory
The system supports DDR4 registered DIMMs (RDIMMs) and load reduced DIMMs (LRDIMMs). System memory holds the instructions
that are executed by the processor.
NOTE
: MT/s indicates DIMM speed in MegaTransfers per second.
Memory bus operating frequency can be 2666 MT/s, 2400 MT/s, or 2133 MT/s depending on the following factors:
• DIMM type (RDIMM or LRDIMM)
• System prole selected (for example, Performance Optimized, or Custom [can be run at high speed or lower])
• Maximum supported DIMM frequency of the processors
The PowerEdge FC640 system contains 16 memory sockets split into two sets of 8 sockets, one set per processor. Each 8-socket set is
organized into six channels. In each channel, the release tabs of the rst three sockets are marked white, and the fourth socket black.
Installing and removing system components
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