Owners Manual

Figure 14. Installing a processor/DIMM blank
a. processor or DIMM blank
b. heat sink retention socket (4)
c. standoff (4)
Follow the procedure listed in the After working inside your system section.
Related references
Safety instructions on page 51
Related tasks
Installing a processor on page 84
Removing a processor or DIMM blank on page 57
Before working inside your system on page 51
After working inside your system on page 52
System memory
Your system supports DDR4 registered DIMMs (RDIMMs) and load reduced DIMMs (LRDIMMs). It supports DDR4 voltage
specifications.
NOTE: MT/s indicates DIMM speed in MegaTransfers per second.
Memory bus operating frequency can be 2400 MT/s, 2133 MT/s, or 1866 MT/s depending on:
● 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
The 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 levers of the first socket are marked white, the second socket black,
and the third socket green.
NOTE:
DIMMs in sockets A1 to A12 are assigned to processor 1 and DIMMs in sockets B1 to B12 are assigned to processor
2.
The following table shows the memory populations and operating frequencies for the supported configurations.
Installing and removing sled components
59