Lenovo ThinkSystem SR645 Setup Manual page 87

Configuration 1, 2, and 3: (front drive bays only)
Con-
Front BP
fig.
NVMe 0-1
NVMe 2–3
1 SAS 0
SAS 1
SAS 2
NVMe 0–1
NVMe 2–3
2
SAS 0, SAS 1
SAS 2
NVMe 0–1
NVMe 2–3
SAS 0
3
SAS 1
SAS 2
The following illustration shows the cable routing for the configuration 2, the routing for configurations 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.
System board
SFF 16i RAID/HBA
PCIe 3
PCIe 7
PCIe 2
PCIe 4
PCIe 5
PCIe 3
PCIe 7
PCIe 3
PCIe 7
PCIe 8
↔ ↔
, ,
1 1 2 2
Storage controller
Gen 4: C 0
Gen 3: C 0, C 1
Gen 4: C 1
Gen 3: C 2, C 3
↔ ↔
, ...
3 3 n n
.
Chapter 3
CFF 16i RAID/HBA
C 0
C 1
C 2
MB
Internal cable routing
83