Server model with 8 x 2.5-inch front drive bays (SAS/SATA or NVMe)
This section provides cable routing information for the server model with one 8 x 2.5-inch SAS/SATA front backplane or one 8 x 2.5-inch NVMe front backplane.
Configuration 1: one 8 x 2.5" SAS/SATA front backplane, one 8i RAID/HBA adapter
Note
The RAID/HBA adapter can be installed on the internal riser card (scenario 1) or riser card 1 (scenario 2). The following illustration shows the cable connections for scenario 1. The cable connections are the same for scenario 2.
Figure 1. Cable routing for configuration with one 8 x 2.5" SAS/SATA front backplane, one 8i RAID/HBA adapter
Note
When a Gen 4 RAID/HBA adapter is installed, ensure that you use the corresponding Gen 4 cable:
ThinkSystem SR655 2.5" SAS/SATA 8-Bay X40 RAID
| Cable | From | To |
|---|---|---|
| 1 SAS signal cable | SAS 0 connector on the backplane | The RAID/HBA adapter
|
| SAS 1 connector on the backplane | The RAID/HBA adapter
|
Configuration 2: one 8 x 2.5" NVMe front backplane, onboard connections
Figure 2. Cable routing for configuration with one 8 x 2.5 NVMe front backplane
| Cable | From | To |
|---|---|---|
| 1 NVMe signal cable | NVMe 0-1 connector on the backplane | PCIe connector 1 on the system board |
| NVMe 2-3 connector on the backplane | PCIe connector 2 on the system board | |
| 2 NVMe signal cable | NVMe 4-5 connector on the backplane | PCIe connector 3 on the system board |
| NVMe 6-7 connector on the backplane | PCIe connector 4 on the system board |
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