The
PowerEdge R660 system supports DDR5 registered DIMMs (RDIMMs).
Your system memory is organized into eight channels per processor (two memory sockets per channel), 16 memory sockets per processor and 32 memory sockets per system.
Figure 1. Memory channelsMemory channels are organized as follows:
Table 1. Memory channels The table describes memory channels and how the channels are organized.
Processor
Channel A
Channel B
Channel C
Channel D
Channel E
Channel F
Channel G
Channel H
Processor 1
Slots A1 and A9
Slots A7 and A15
Slots A3 and A11
Slots A5 and A13
Slots A4 and A12
Slots A6 and A14
Slots A2 and A10
Slots A8 and A16
Processor 2
Slots B1 and B9
Slots B7 and B15
Slots B3 and B11
Slots B5 and B13
Slots B4 and B12
Slots B6 and B14
Slots B2 and B10
Slots B8 and B16
Table 2. Supported memory matrix The table describes the supported memory matrix.
DIMM type
Rank
Capacity
DIMM rated voltage and speed
Operating Speed
1 DIMM per channel (DPC)
2 DIMMs per channel (DPC)
RDIMM
1 R
16 GB
DDR5 (1.1 V), 4800 MT/s
4800 MT/s
4400 MT/s
2 R
32 GB, 64 GB
DDR5 (1.1 V), 4800 MT/s
4800 MT/s
4400 MT/s
4 R
128 GB
DDR5 (1.1 V), 4800 MT/s
4800 MT/s
4400 MT/s
8 R
256 GB
DDR5 (1.1 V), 4800 MT/s
4800 MT/s
4400 MT/s
1R
16 GB
DDR5 (1.1 V), 5600 MT/s
5600 MT/s
4400 MT/s
2R
32 GB, 64 GB , 96 GB
DDR5 (1.1 V), 5600 MT/s
5600 MT/s
4400 MT/s
4R
128 GB
DDR5 (1.1 V), 5600 MT/s
5600 MT/s
4400 MT/s
NOTE: The processor may reduce the performance of the rated DIMM speed.
NOTE: 5600 MT/s RDIMMs are applicable for 5th Gen Intel® Xeon® Scalable Processors.