Figure 498. Front/Middle/Rear backplane signal cable
routing
Figure 499. Middle/Rear backplane power cable routing
From To From To
1
• Backplane 1: SAS 0
• Backplane 4: SAS
1 Onboard: PCIe 5
1 Backplane 5: PWR
1 Onboard:
• GPU power
• Rear backplane power
• Rear backplane
sideband
2 Backplane 1: SAS 1,
SAS 2
2 Onboard: PCIe 9
2 Backplane 4: PWR 2 Riser 2: PWR1, PWR2
3 Backplane 5: SAS 3 Onboard: PCIe 7
32i RAID adapter
The following shows the cable connections for the front 12 x 3.5-inch SAS/SATA + middle 4 x 3.5-inch SAS/
SATA + rear 4 x 3.5-inch SAS/SATA configuration with one 32i raid adapter.
Connections between connectors:
1 ↔ 1 , 2 ↔ 2 , 3 ↔ 3 , ... n ↔ n
452 ThinkSystem SR665 V3 User Guide