Dell PowerEdge XR5610 - General Memory Module Installation Guidelines

Your system memory is organized into eight channels per processor.
Figure 76. Memory channels
Memory channels are organized as follows:
Table 96. Memory channels
Processor Channel
A
Channel B Channel C Channel D Channel E Channel F Channel G Channel H
Processor
1
A1 A7 A3 A5 A4 A6 A2 A8
Table 97. Supported memory matrix
DIMM type Rank Capacity DIMM rated voltage
and speed
Operating Speed
1 DIMM per channel
(DPC)
RDIMM 1 R 16 GB DDR5 (1.1 V), 4800
MT/s
4400 MT/s
2 R 32 GB, 64 GB DDR5 (1.1 V), 4800
MT/s
4400 MT/s
4 R 128 GB DDR5 (1.1 V), 4800
MT/s
4400 MT/s
NOTE: The processor may reduce the performance of the rated DIMM speed.
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 configuration fails to observe these guidelines, your system might not boot, stop responding during
memory configuration, or operate with reduced memory.
The memory bus may operate at speeds of 4400 MT/s or 4000 MT/s depending on the following factors:
● System profile selected (for example, Performance, Workstation Performance, Performance Per Watt Optimized (OS), or
Custom [can be run at high speed or lower])
● Maximum supported DIMM speed of the processors
● Maximum supported speed of the DIMMs
NOTE: MT/s indicates DIMM speed in MegaTransfers per second.
The following are the recommended guidelines for installing memory modules:
● All DIMMs must be DDR5.
● If memory modules with different speeds are installed, they operate at the speed of the slowest installed memory module(s).
● Populate memory module sockets only if a processor is installed.
○ For single-processor systems, sockets A1 to A8 are available.
○ A minimum of 1 DIMM must be populated for each installed processor.
● In Optimizer Mode, the DRAM controllers operate independently in the 64-bit mode and provide optimized memory
performance.
Table 98. Memory population rules
Processor Memory population Memory population
information
Single processor A{1}, A{2}, A{3}, A{4}, A{5}, A{6}, A{7}, A{8} 1, 2, 4, 6 and 8 DIMMs are
allowed.
● Mixing of any different memory module capacities in a system is not supported.
● Always populate memory channels identically with equal DIMMs for best performance.
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Installing and removing system components