Lenovo 7D31, Maintenance Manual

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Three backplanes
Three AnyBay backplanes
On-board con 16i RAID adapter
SAS/SATA cable routing PCIe cable routing
Length
To
NVMe
connector
Length
To
1
845 mm on-board
1
0-1, 2-3 670 mm PCIe 1 (on-board)
2
860 mm C0 (16i)
2
4-5, 6-7 910 mm PCIe 2 (on-board)
3
1000 mm C1
3
0-1, 2-3 530 mm PCIe 3 (tray)
4
4-5, 6-7 670 mm PCIe 6 (tray)
5
0-1, 2-3 1100 mm C0, C1 (Slot 5)
6
4-5, 6-7 1100 mm C0, C1 (Slot 6)
102
ThinkSystem SR850 V2 Maintenance Manual