Lenovo ThinkSystem SR650 V2 - Page 179

Onboard connectors + 8i RAID/HBA adapter
The following shows the cable connections for the 12 x 3.5-inch SAS/SATA configuration with a 4 x 3.5-inch/
4 x 2.5-inch SAS/SATA rear backplane.
From To
Backplane 1: SAS 0, SAS 1 Onboard: SATA 0, SATA 1
Backplane 1: SAS 2 Onboard: SATA 2
Backplane 4: SAS 8i RAID/HBA
1
: C0C1 (Gen 3) or C0 (Gen 4)
Backplane 4: PWR Riser 1: 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 124. Front backplane cable routing Figure 125. Rear backplane cable routing
16i RAID/HBA adapter
The following shows the cable connections for the 12 x 3.5-inch SAS/SATA configuration with a 2 x 3.5-inch/
4 x 3.5-inch/4 x 2.5-inch SAS/SATA rear backplane.
Chapter 3. Internal cable routing 169