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
62
Installing and removing system components
