Owners Manual

Installing a processor blank and DIMM blank
Prerequisites
CAUTION: Many repairs may only be done by a certified service technician. You should only perform
troubleshooting and simple repairs as authorized in your product documentation, or as directed by the online or
telephone service and support team. Damage due to servicing that is not authorized by Dell is not covered by
your warranty. Read and follow the safety instructions that came with the product.
1. Follow the safety guidelines listed in the Safety instructions section.
2. Follow the procedure listed in the Before working inside your system section.
3. If installed, remove the heat sink and the processor.
4. Remove a processor blank and DIMM blank.
NOTE: You must remove processor blank and DIMM blank when installing two processors or service other components
inside the system.
Steps
1. Align the standoffs on the processor blank and DIMM blank with the heat sink retention sockets on the processor socket.
2. Lower the processor blank and DIMM blank onto the system until the standoffs on the processor blank and DIMM blank
engage with the heat sink retention sockets.
Next steps
1. Follow the procedure listed in the After working inside your system section.
Related references
Safety instructions on page 53
Related tasks
Before working inside your system on page 53
Removing a heat sink on page 90
Removing a processor on page 91
After working inside your system on page 54
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 either 2400 MT/s, 2133 MT/s, and 1866 MT/s depending on the:
● DIMM type (RDIMM or LRDIMM)
● DIMM configuration (number of ranks)
● Maximum frequency of the DIMMs
● 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 48 memory sockets split into four 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, B1 to B12 to processor 2, C1 to C12 to processor 3, and D1
to D12 to processor 4.
64 Installing server module components