Dell EMC PowerEdge E45S Series Installation And Service Manual page 48

Your system memory is organized into eight channels per processor (two memory sockets per channel) for a total of 16 memory
sockets per processor. In each channel, the 1st socket is marked white and the 2nd socket black.
Figure 42. Memory socket location
Memory channels are organized as follows:
Table 12. Memory channels
Processo Channel A
r
AMD Slots 6 and
Processor 12
Table 13. Supported memory matrix
DIMM type Rank
type
RDIMM 1R
2R
LRDIMM 8R
8R
48 Installing and removing system components
Channel Channel C Channel D
B
Slots 5 Slots 2 and
and 11 10
Capacity
8 GB
16 GB, 32 GB, 64
GB
128 GB
128 GB
Channel E
Slots 1 and Slots 8 and
9 16
DIMM rated voltage and
speed
DDR4 (1.2V), 3200 MT/s
DDR4 (1.2V), 3200 MT/s
DDR4 (1.2V), 2666 MT/s
DDR4 (1.2V), 3200 MT/s
Channel F Channel G
Slots 7 and Slots 4 and 14
15
Operating Speed
1 DIMMs per 2 DIMMs per
Channel (DPC) Channel (DPC)
3200 MT/s 2933 MT/s
3200 MT/s 2933 MT/s
2666 MT/s 2666 MT/s
3200 MT/s 2933 MT/s
Channel H
Slots 3 and 13