Lenovo ThinkSystem SR645 Setup Manual page 41

Server model with three PCIe slots
The following illustration shows the rear view of server model with three PCIe slots. Depending on the model,
your server might look slightly different from the illustration below.
Table 12. Components on the rear of the server
Callout
PCIe slot 1 on riser 1 assembly
1
PCIe slot 3 on riser 2 assembly
3
Power supply 1
5
USB 3.1 Gen 1 connectors (3)
7
XClarity Controller network connector
9
Note: For more information about each component, see "Rear components overview" on page 41.
Callout
PCIe slot 2 on riser 1 assembly
2
Power supply 2 (optional)
4
NMI button
6
VGA connector
8
Ethernet connectors on OCP 3.0 Ethernet adapter
10
(optional)
Chapter 2
.
Server components
37