Lenovo ThinkSystem SR850 V3 - System Board Assembly Layout

Figure 6. OCP module with two Ethernet connectors Figure 7. OCP module with four Ethernet connectors
Rear view of the sever model with four PCIe risers
This section contains information on the rear view of the sever model with four PCIe risers.
Figure 8. Rear view of the sever model with four PCIe risers
Table 4. Components on the rear view of the sever model with four PCIe risers
1 PCIe riser A (PCIe slot 3-5)
7 XCC system management port (1 GB RJ-45)
2 PCIe riser B (PCIe slot 6-8)
8 USB 3.1 Gen 1 (5 Gbps) connectors (total of three
connectors)
3 PCIe riser C (PCIe slot 9-11)
9 VGA connector
4 PCIe riser D (PCIe slot 12-14)
10 NMI button
5 Power supply units
11 OCP slot 2
6 OCP slot 1
1 PCIe riser A (PCIe slot 3-5)
Install PCIe adapters into these slots. See the following table for PCIe slots corresponding to the PCIe risers.
PCIe slot
x16/x8/x8 PCIe G4 Riser 2/A/B/C
HHHL
x16/x8/x8 PCIe G5 Riser 2/A/B/C
HHHL
3
x16 (Gen4 x16) x16 (Gen5 x16)
4
x16 (Gen4 x8) x16 (Gen5 x8)
5
x16 (Gen4 x8) x16 (Gen4 x8)
2 PCIe riser B (PCIe slot 6-8)
Install PCIe adapters into these slots. See the following table for PCIe slots corresponding to the PCIe risers.
Chapter 2. Server components 23