Backplanes - Lenovo ThinkSystem SR665 V3 User Manual

One 8 x SAS/SATA and two 8 x NVMe backplanes
This section provides cable routing information for the server model with one 8 x 2.5-inch SAS/SATA and two
8 x 2.5-inch NVMe front backplanes.
To connect power cables for the front backplane(s), refer to
drive bays" on page 312.
To connect signal cables for the front backplane(s), refer to the following cable routing scenarios depending
on your server configuration.
• "Onboard connectors + 8i RAID/HBA adapters" on page 413
• "Onboard connectors + 8i RAID/HBA adapter + Retimer card" on page 414
Onboard connectors + 8i RAID/HBA adapters
The following shows the cable connections for the front (8 x 2.5-inch SAS/SATA + 16 x 2.5-inch NVMe)
configuration with one 8i RAID/HBA adapter.
Connections between connectors:
Figure 434. SAS/SATA cable routing
From
Backplane 1: SAS
1
↔ ↔
, ,
1 1 2 2 3
To
8i adapter
1
• Gen 4: C0
• Gen 3: C0C1
"Backplanes: server models with 2.5-inch front
↔ ↔
, ...
3 n n
Figure 435. NVMe cable routing
From
Backplane 2: NVMe 0-1
1
Chapter 6
To
Onboard: PCIe 6
1
.
Internal cable routing
413