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4 x 2.5'' NVMe backplane (Gen 4 backplane)

Use this section to understand the NVMe backplane cable routing for server model with four 2.5-inch front drives.

To connect cables for a 7mm drive backplane, refer to 7mm drive backplane.

To connect power cables for a backplane for standard 2.5-inch or 3.5-inch drives, refer to Cable routing for backplane power.

To connect cables for the front riser assembly, refer to Front riser assembly.

To connect cables for the rear NVMe drives, refer to Rear NVMe drive backplane.

Cable routing for onboard configuration​

Figure 1. Cable routing for onboard configuration of 4 x 2.5-inch front NVMe drives

Table 1. Mapping between backplane and processor board for onboard configuration
BackplanesFromTo
Front BP (NVMe)1 NVMe 0–11 PCIe 5
2 NVMe 2–32 PCIe 6
Figure 2. Cable routing for onboard configuration of 4 x 2.5-inch front NVMe drives and 2 x 2.5-inch rear SAS/SATA drives

Table 2. Mapping between backplane and processor board for onboard configuration
BackplanesFromTo
Front BP (NVMe)1 NVMe 0–11 PCIe 5
2 NVMe 2–32 PCIe 6
Rear BP (SAS)3 SAS3 SATA 2