General Memory Module Installation Guidelines - Dell EMC PowerEdge XE8545 Installation And Service Manual

Figure 59. Memory channels
Memory channels are organized as follows:
Table 12. Memory channels
Processor Channel
A
Processor 1 Slots A6
and A12
Processor Slots B6
2 and B12
Table 13. Supported memory matrix
DIMM type Rank
RDIMM 2 R

General memory module installation guidelines

To ensure optimal performance of your system, observe the following general guidelines when configuring your system memory.
If your system's memory configurations fail to observe these guidelines, your system might not boot, stop responding during
memory configuration, or operate with reduced memory. This section provides information on the memory population rules and
about the non-uniform memory access (NUMA) for single or dual processor system.
The memory bus may operate at speeds of 3200 MT/s, 2933 MT/s, or 2666 MT/s depending on the following factors:
● System profile selected (for example, Performance Optimized, or Custom [can be run at high speed or lower])
Channel Channel C
B
Slots A5 Slots A2
and A11 and A10
Slots B5 Slots B2
and B11 and B10
Capacity
32 GB, 64 GB
Channel D Channel E
Slots A1 and Slots A8 and
A9 A16
Slots B1 and Slots B8 and
B9 B16
DIMM rated
voltage and
speed
DDR4 (1.2 V), 3200
MT/s
Installing and removing system components
Channel F Channel G
Slots A7 Slots A4 and
and A15 A14
Slots B7 Slots B4 and
and B15 B14
Operating Speed
1 DIMM per
channel (DPC)
3200 MT/s
Channel H
Slots A3 and
A13
Slots B3 and
B13
2 DIMMs per
channel (DPC)
2933 MT/s
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