Dell EMC PowerEdge R250 Installation And Service Manual page 43

Figure 35. Cable routing for 4 x 3.5-inch backplane configuration with onboard SATA and PSU (Bronze)
Table 12. Cable routing - 4 x 3.5-inch backplane configuration with onboard SATA and PSU (Bronze)
From
BP_DST_SA1 (Signal connector on backplane)
BP_PWR_1 (Power connector on backplane)
P1 (Power connecter 1)
P2 (Power connecter 2)
P3 (Power connecter 3)
Figure 36. Cable routing - 4 x 3.5-inch cabled drive configuration
To
SL1_PCH_SA1 (Signal connector on system board)
Cabled power supply
Cabled power supply
Cabled power supply
Cabled power supply
Installing and removing system components 43