Lenovo ThinkSystem SR645 - Page 80

Configuration 4, 5, and 6: (front drive bays and rear drive bays)
Con-
fig.
Front BP Rear BP
System
board
Storage controller
SFF 8i RAID CFF 16i RAID/HBA
4
SAS 0 PCIe 2
SAS 1 PCIe 4
SAS PCIe 5
5
SAS 0, SAS 1
Gen 4: C 0
Gen 3: C 0, C 1
SAS PCIe 5
6
SAS 0 C 0
SAS 1 C 1
PCIe 8 MB
SAS C 3
The following illustration shows the cable routing for the configuration 6, the routing for configuration 4 and 5
is similar. Connections between connectors:
1 ↔ 1 , 2 ↔ 2 , 3 ↔ 3 , ... n ↔ n
Figure 19. Cable routing for configuration 6
70 ThinkSystem SR645 Maintenance Manual