24 X Nvme Front Drive Bays; Bays - Lenovo ThinkSystem SR650 V2 Maintenance Manual

24 x NVMe front drive bays

This section provides cable routing information for the server model with 24 x 2.5-inch NVMe front drive

bays.

• "Retimer cards (24 x NVMe)" on page 113
• "Switch cards (32 x NVMe)" on page 114
Retimer cards (24 x NVMe)
The following shows the cable connections for the 24 x 2.5-inch NVMe configuration with three retimer
cards.
From
Backplane 1: NVMe 0-1, 2-3
Backplane 1: NVMe 4-5, 6-7
Backplane 2: NVMe 0-1, 2-3
Backplane 2: NVMe 4-5, 6-7
Backplane 3: NVMe 0-1, 2-3
Backplane 3: NVMe 4-5, 6-7
Connections between connectors:
Figure 56. Cable routing for the 24 x 2.5-inch NVMe configuration with three retimer cards
To
Onboard: PCIe 1, PCIe 2
Retimer card on PCIe slot 1: C0, C1
Retimer card on PCIe slot 2: C0, C1
Onboard: PCIe 3, PCIe 4
Onboard: PCIe 5, PCIe 6
Retimer card on PCIe slot 4: C0, C1
↔ ↔ ↔
, , , ...
1 1 2 2 3 3
↔
n n
.
Chapter 3 Internal cable routing
113