Lenovo ThinkSystem SR645 Setup Manual page 69

Configuration 1, 2, and 3: (front drive bays only)
Con-
Front BP
fig.
SAS 0
1
SAS 1
SAS 0, SAS 1
2
SAS 0
3 SAS 1
The following illustration shows the cable routing for the configuration 2, the routing for configuration 1 and 3
is similar. Connections between connectors:
Note: For models that support Gen 3 and Gen4 adapters at the same slot, the illustration shows only the
cable routing information for Gen 4 adapters, the routing and connector information is similar for Gen 3
adapters.
Figure 16. Cable routing for configuration 2
System board
PCIe 2
PCIe 4
PCIe 8
1
Storage controller
SFF 8i RAID/HBA
Gen 4: C 0
Gen 3: C 0, C 1
↔ ↔ ↔
, , , ...
1 2 2 3 3
CFF 16i RAID/HBA
C 0
C 1
MB
↔
n n
.
Chapter 3 Internal cable routing
65