Middle and rear backplanes: 4 x 3.5-inch SAS/SATA + 4 x 3.5-inch/4 x 2.5-inch SAS/SATA
The following shows the cable connections for the 4 x 3.5-inch SAS/SATA middle backplane and 4 x 3.5-
inch/4 x 2.5-inch SAS/SATA rear backplane with one 8i RAID/HBA Gen 3 adapter.
From To
Backplane 4: SAS
8i RAID/HBA Gen 3
1
: C0C1
Backplane 5: SAS
Backplane 4: PWR Riser 1: PWR1, PWR2
Backplane 5: PWR Riser 2: PWR1, PWR2
Notes:
• For a 4 x 3.5-inch SAS/SATA rear backplane, the 8i adapter
1
is installed on PCIe slot 3.
• For a 4 x 2.5-inch SAS/SATA rear backplane, the 8i adapter
1
is installed on PCIe slot 2.
Below illustration uses the 4 x 3.5-inch SAS/SATA rear backplane as an example for cable routing. Cable
routing for the 4 x 2.5-inch SAS/SATA rear backplane is similar.
Connections between connectors:
1 ↔ 1 , 2 ↔ 2 , 3 ↔ 3 , ... n ↔ n
Figure 132. Cable routing for the 4 x 3.5-inch SAS/SATA middle backplane and 4 x 3.5-inch SAS/SATA rear backplane
174 ThinkSystem SR650 V2Maintenance Manual
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