One 8 X Nvme Backplane - Lenovo ThinkSystem SR665 V3 User Manual

Figure 317. SAS/SATA cable routing
From
Backplane 1: SAS
1

One 8 x NVMe backplane

This section provides cable routing information for the server model with one 8 x 2.5-inch NVMe front
backplane.
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" on page 327
• "Onboard connectors + Riser 5 + OCP interposer cards" on page 328
• "Riser 3/4/5 + Retimer card" on page 330
Onboard connectors
The following shows the cable connections for the 8 x 2.5-inch NVMe configuration with onboard
connectors.
Connections between connectors:
To
8i adapter
1
• Gen 4: C0
• Gen 3: C0C1
↔ ↔
, ,
1 1 2 2 3
Figure 318. NVMe cable routing
From
Backplane 1: NVMe 6-7
1
"Backplanes: server models with 2.5-inch front
↔ ↔
, ...
3 n n
Chapter 6
To
Onboard: PCIe 7
1
.
Internal cable routing
327