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 “Backplanes: server models with 2.5-inch front
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:
1 ↔ 1 , 2 ↔ 2 , 3 ↔ 3 , ... n ↔ n
Figure 434. SAS/SATA cable routing
Figure 435. NVMe cable routing
From To From To
1 Backplane 1: SAS
1 8i adapter
• Gen 4: C0
• Gen 3: C0C1
1 Backplane 2: NVMe 0-1
1 Onboard: PCIe 6
Chapter 6. Internal cable routing 413
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