Owners Manual

Figure 24. Installing the cooling fan
Next step
Install the air shroud.
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 2667 MT/s, 2400 MT/s, or 2133 MT/s depending on the following factors:
• DIMM type (RDIMM or LRDIMM)
• Number of DIMMs populated per channel
• System prole selected (for example, Performance Optimized, or Custom [can be run at high speed or lower])
• Maximum supported DIMM frequency of the processors
Your system contains 24 memory sockets split into two sets of 12 sockets, one set per processor. Each 12-socket set is organized into six
channels. In each channel, the release tabs of the rst socket are marked white, and the second socket black.
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Installing and removing system components