From To
5 Backplane 2: NVMe 4-5
5 Retimer card: C0
6 Backplane 2: NVMe 6-7
6 Retimer card: C1
7 Backplane 2: NVMe 0-1
7 Retimer card: C0
8 Backplane 2: NVMe 2-3
8 Retimer card: C1
9 Backplane 3: NVMe 0-1
9 Retimer card: C0
10 Backplane 3: NVMe 2-3
10 Retimer card: C1
11 Backplane 3: NVMe 4-5
11 Onboard: PCIe 9
12 Backplane 3: NVMe 6-7
12 Onboard: PCIe 10, 11
Front + middle backplanes: 24 x NVMe + 8 x NVMe
This topic provides cable routing information for the server model with three 8 x 2.5-inch NVMe front
backplanes, two 4 x 2.5-inch NVMe middle backplanes, and three retimer cards.
Connections between connectors:
1 ↔ 1 , 2 ↔ 2 , 3 ↔ 3 , ... n ↔ n
Front backplane cable routing
Figure 428. Front backplane cable routing
406 ThinkSystem SR665 V3 User Guide