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Follow the instructions listed in After working inside your system.
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Removing a four-slot hard-drive blank
System memory
Your system supports DDR4 registered DIMMs (RDIMMs). It supports DDR4 voltage specifications.
NOTE: MT/s indicates DIMM speed in MegaTransfers per second.
Memory bus operating frequency can be 2133 MT/s, 1866 MT/s, 1600 MT/s, or 1333 MT/s depending on:
• System profile selected (for example, Performance Optimized, Custom, or Dense Configuration
Optimized)
• Maximum supported DIMM frequency of the processors
Your system contains 12 memory sockets split into four sets— two sets of 4 sockets and two sets of 2
sockets each. DIMMs in sockets A1 to A8 are assigned to processor 1 and DIMMs in sockets B1 to B4 are
assigned to processor 2. Each 4-socket set is organized into two channels and each 2–socket set is
organized into one channel. In each channel of the 4-socket set, the release levers of the first socket are
marked white and those of the second socket are marked black. In the 2-socket set, each release lever is
marked white.
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