System Memory - Dell SD630-S Owner's Manual

Steps
1. Align the tabs on the cooling shroud with the securing slots on the chassis.
2. Lower the cooling shroud into the chassis until it is firmly seated.
Figure 18. Installing the cooling shroud
1. cooling shroud
Next steps
1. Follow the procedure listed in the After working inside your system section.
Related Links
Safety instructions
Before working inside your system
After working inside your system

System memory

The system supports DDR4 registered DIMMs (RDIMMs). System memory holds the instructions that the
processor runs and data with which instructions work with. System memory is an important part of the
main processing subsystem of the PC, with the processor, cache, system board and chipset.
NOTE: MT/s indicates DIMM speed in MegaTransfers per second.
Memory bus operating frequency can be 1866 MT/s, 2133 MT/s, or 2400 MT/s depending on the
following factors:
• DIMM type (RDIMM)
• Number of DIMMs populated per channel
• System profile selected (for example, Performance Optimized, Custom, or Dense Configuration
Optimized)
• 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 four channels. In each channel, the release tabs of the first socket are
marked white, the second socket black, and the third socket green.
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