System memory guidelines
The VxRail D Series systems support DDR4 Registered DIMMs (RDIMMs), and Load Reduced DIMMs (LRDIMMs). System
memory holds the instructions that are executed by the processor.
Your system contains 16 memory sockets. Processor 1 supports up to 10 memory sockets and Processor 2 supports up to 6
memory sockets. Six memory channels are allocated to each processor. Processor 1 has four 2 DIMM slots per channel and two
1 DIMM slot per channel, Processor 2 has six 1 DIMM per channel.
Figure 14. Memory socket locations
Memory channels are organized as follows:
Table 35. Memory channels
Processor
Channel 0
Channel 1
Channel 2
Channel 3
Channel 4
Channel 5
Processor 1
Slots A1 and A7 Slots A2 and
A8
Slots A3
Slots A4 and A9
Slots A5 and A10
Slots A6
Processor 2 Slots B1
Slots B2
Slots B3
Slots B4
Slots B5
Slots B6
Table 36. Memory population
DIMM Type
DIMMs Populated/
Channel
Voltage
Operating Frequency
(in MT/s)
Maximum DIMM Rank/
Channel
RDIMM
1
1.2 V
2666
Dual rank or single rank
2
1.2 V
2666
Dual rank or single rank
30
Replacing and adding hardware
