Lenovo ThinkSystem SR645 Maintenance Manual page 99

Configurations 4 and 5: (front drive bays and rear drive bays)
Config.
Front BP
NVMe 0-1
NVMe 2–3
4 SAS 0
SAS 1
SAS 2
NVMe 0–1
NVMe 2–3
SAS 0
5 SAS 1
SAS 2
The following illustration shows the cable routing for the configuration 5, the routing for configurations 4 is
similar. Connections between connectors:
Figure 30. Cable routing for configuration 5
System board
Rear BP
SAS
SAS
↔ ↔ ↔
, , , ...
1 1 2 2 3 3
Storage controller
CFF 16i RAID/HBA
PCIe 3
PCIe 7
PCIe 2
PCIe 4
PCIe 5
PCIe 3
PCIe 7
PCIe 8
↔
n n
.
Chapter 3 Internal cable routing
C 0
C 1
C 2
C 3
MB
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