Cable From To
3  Power cable Power 2 connector on the front 
backplane
Backplane power connector 2 on the 
system board
4  SAS signal cable for the rear hot- 
swap drive assembly
Signal connector on the rear hot- 
swap drive assembly
C3 connector on the 16i RAID 
adapter installed on the RAID adapter 
slot
82 ThinkSystem SR650 Maintenance Manual