Figure 419. Cable routing when two processors installed
Figure 420. Cable routing when one processor installed
From To From To
1  Backplane 3: NVMe 0-1
Onboard: PCIe 8
1  Backplane 3: NVMe 0-1, 
2-3
Onboard: PCIe 3, 4
2  Backplane 3: NVMe 2-3 Onboard: PCIe 7 2  Backplane 3: NVMe 4-5 Onboard: PCIe 2
3  Backplane 3: NVMe 4-5, 
6-7
Onboard: PCIe 4, 3
3  Backplane 3: NVMe 6-7 Onboard: PCIe 1
24 x 2.5" SAS/SATA expander backplane
This section provides cable routing information for the server model with the 24 x 2.5" SAS/SATA expander 
backplane.
•  “Front backplane: 24 x 2.5" SAS/SATA” on page 411
•  “Front + rear backplanes: 24 x 2.5" SAS/SATA + 8 x 2.5" SAS/SATA” on page 412
Front backplane: 24 x 2.5" SAS/SATA
This topic provides cable routing information for the front 24 x 2.5-inch SAS/SATA expander backplane.
8i adapter
Connections between connectors: 
1  ↔  1 ,  2  ↔  2 ,  3  ↔  3 , ...  n  ↔  n
Chapter 6
. Internal cable routing 411