Server model: twenty-four 2.5-inch SAS/SATA drives, the rear hot-swap drive assembly, one 8i RAID 
adapter, one 24i RAID adapter
Figure 48. Cable routing for server models with twenty-four 2.5-inch SAS/SATA drives, the rear hot-swap drive assembly, 
one 8i RAID adapter, and one 24i RAID adapter
Cable
From To
1  Power cable for front backplane 1 Power connector on front backplane 
1
Backplane power connector 1 on the 
system board
2  SAS signal cable for front 
backplane 1
SAS 0 and SAS 1 connectors on front 
backplane 1
C0 and C1 connectors on the 24i 
RAID adapter installed in PCIe slot 5
3  SAS signal cable for front 
backplane 2
SAS 0 and SAS 1 connectors on front 
backplane 2
C2 and C3 connectors on the 24i 
RAID adapter installed in PCIe slot 5
4  Power cable for front backplane 2 Power connector on front backplane 
2
Backplane power connector 2 on the 
system board
5  Power cable for front backplane 3 Power connector on front backplane 
3
Backplane power connector 3 on the 
system board
80 ThinkSystem SR650 Setup Guide