Dell EMC PowerEdge R750 Installation And Service Manual page 38

Figure 32. 8 x 2.5-inch SAS with fPERC and Riser 1C
Table 22. 8 x 2.5-inch SAS with fPERC and Riser 1C
From
SIG_PWR_1 (system board power connector)
CTRL_SRC_PA1 (fPERC controller connector)
CTRL_SRC_PB1 (fPERC controller connector)
SL1_CPU2_PB1 (signal connector on system board)
SL3_CPU1_PB2 (signal connector on system board) and
SL4_CPU1_PA2 (signal connector on system board)
38 Installing and removing system components
To
BP_PWR_1 (backplane power connector)
BP_DST_PA1 (backplane signal connector) and BP_DST_PB1
(backplane signal connector)
BP_DST_PA2 (backplane signal connector) and BP_DST_PB2
(backplane signal connector)
CTRL_DST_PA1 (fPERC input connector)
Riser 1C (signal connector from Riser 1C)