Lenovo ThinkSystem SR635 Maintenance Manual page 29

Figure 12. Rear view of server model with one PCIe slot
Table 9. Components on the rear of the server
PCIe slot 1 on riser 1 assembly
1
Power supply 2 (optional)
3
Serial port
5
VGA connector
7
Ethernet connectors on OCP 3.0 Ethernet adapter
9
(optional, two or four connectors may be available)
1 PCIe slot 1
Slot 1: PCIe x16 (x16, x8, x4, x1), full-height/full-length
Rear view of server model with no PCIe slot
The following illustration shows the rear view of the server model with no PCIe slot. Depending on the model,
your server might look slightly different from the illustration below.
Figure 13. Rear view of server model with no PCIe slot
Table 10. Components on the rear of the server
Power supply 1
1
NMI button
3
USB 3.2 Gen 1 (5 Gbps) connectors
5
BMC management network connector
7
The following are common components on the rear view of different models:
• Power supply 1
• Power supply 2 (optional)
The hot-swap redundant power supplies help you avoid significant interruption to the operation of the
system when a power supply fails. You can purchase a power supply option from Lenovo and install the
power supply to provide power redundancy without turning off the server.
Power supply 1
2
NMI button
4
USB 3.2 Gen 1 (5 Gbps) connectors
6
BMC management Ethernet connector
8
Power supply 2 (optional)
2
Serial port
4
VGA connector
6
Ethernet connectors on OCP 3.0 Ethernet adapter
8
(optional, two or four connectors may be available)
Chapter 2
.
Server components
19