Lenovo ThinkSystem SR650 V2 Maintenance Manual page 56

Rear view with four 2.5-inch rear drive bays and six PCIe slots
Table 15. Components on the rear of the server
Callout
PCIe slot 1 (on riser 1 assembly)
1
PCIe slot 3 (on riser 1 assembly)
3
PCIe slot 5 (on riser 2 assembly)
5
2.5-inch rear drive bays (4)
7
Power supply 2 (optional)
9
USB 3 (5 Gbps) connector (DCI)
11
USB 3 (5 Gbps) connectors (DCIs)
13
Ethernet connectors on OCP 3.0 Ethernet adapter
15
(optional)
Note: For more information about each component, see "Rear components overview" on page 50.
ThinkSystem SR650 V2Maintenance Manual
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Callout
PCIe slot 2 (on riser 1 assembly)
2
PCIe slot 4 (on riser 2 assembly)
4
PCIe slot 6 (on riser 2 assembly)
6
Power supply 1
8
NMI button
10
VGA connector
12
XClarity Controller network connector
14