Dell PowerEdge R750xa EMC Installation and Service Manual - Page 63

System memory, System memory guidelines

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Table 20. 8 x 2.5-inch SAS/SATA with 4 universal slots and fPERC From To Riser 3 paddle (R3 paddle card on Riser 3 slot) BP_DST_PA2 (backplane signal connector) and BP_DST_PB2 (backplane signal connector) SL7_CPU1_PA5 (signal connector on system board) CTRL_DST_PA1 (fPERC input connector) System memory System memory guidelines The PowerEdge R750xa system supports DDR4 registered DIMMs (RDIMMs), Load Reduced DIMM (LRDIMMs), and Intel Persistent Memory 200 series (BPS). System memory holds the instructions that are started by the processor. 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 60. Memory channels Memory channels are organized as follows: Table 21. Memory channels Processor Channel Channel A B Processor 1 Slots A1 Slots A5 and A9 and A13 Channel C Channel D Channel E Channel F Channel G Slots A3 and A11 Slots A7 and A15 Slots A2 and Slots A6 A10 and A14 Slots A4 and A12 Channel H Slots A8 and A16 Installing and removing system components 63

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Table 20. 8 x 2.5-inch SAS/SATA with 4 universal slots and fPERC
From
To
Riser 3 paddle (R3 paddle card on Riser 3 slot)
BP_DST_PA2 (backplane signal connector) and BP_DST_PB2
(backplane signal connector)
SL7_CPU1_PA5 (signal connector on system board)
CTRL_DST_PA1 (fPERC input connector)
System memory
System memory guidelines
The PowerEdge R750xa system supports DDR4 registered DIMMs (RDIMMs), Load Reduced DIMM (LRDIMMs), and Intel
Persistent Memory 200 series (BPS). System memory holds the instructions that are started by the processor.
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 60. Memory channels
Memory channels are organized as follows:
Table 21. Memory channels
Processor
Channel
A
Channel
B
Channel C
Channel D
Channel E
Channel F
Channel G
Channel H
Processor 1
Slots A1
and A9
Slots A5
and A13
Slots A3
and A11
Slots A7
and A15
Slots A2 and
A10
Slots A6
and A14
Slots A4 and
A12
Slots A8 and
A16
Installing and removing system components
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