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Rear view

The rear of the server provides access to several components, including the power supplies, PCIe adapters, serial port, and Ethernet port.

Note
Depending on the configuration, your server might be slightly different from the image.
Figure 1. Rear view

Table 1. Components on the rear of server models with a fixed power supply or two hot-swap power supplies
1 Power supply units6 Ethernet connector 2
2 VGA connector7 USB 3.2 Gen 1 connectors
3 Serial connector8 USB 3.2 Gen 1 connectors
4 XCC system management port (1 GB RJ-45)9 NMI button
5 Ethernet connector 1 (shared with XCC network port)10 PCIe slots

1 Power supply units​

Install power supply units to these bays, connect them to power cords. Make sure the power cords are connected properly. See Technical specifications for the power supplies supported by this system.

For more information about the LEDs, see Power supply LEDs.

2 VGA connector​

Connect a monitor to this connector.

3 Serial connector​

Connect a 9-pin serial device to this connector. The serial port is shared with XClarity Controller. XClarity Controller can take control of the shared serial port to redirect serial traffic, using Serial over LAN (SOL).
Note
If the Serial over LAN (SOL) or Emergency Management Services (EMS) feature is enabled, the serial port will be hidden on Linux and Microsoft Windows. Therefore, it is required to disable SOL and EMS to use the serial port on operating systems for serial devices.
To enable the serial port module on Linux or Microsoft Windows, see Tip for enabling the serial port on supported operating system.

4 XCC system management port (1 GB RJ-45)​

The server has a 1 GB RJ-45 connector dedicated to Lenovo XClarity Controller (XCC) functions. Through the system management port, you can access the Lenovo XClarity Controller directly by connecting your laptop to the management port using an Ethernet cable. Make sure that you modify the IP settings on the laptop so that it is on the same network as the server default settings. A dedicated management network provides additional security by physically separating the management network traffic from the production network.

See the following for more information:

5 6 Ethernet connector 1 and 2​

Used to attach an Ethernet cable for a LAN. Each Ethernet connector has two status LEDs to help you identify the Ethernet connectivity and activity. For more information, see XCC system management port (10/100/1000 Mbps RJ-45) LEDs. Ethernet 1 connector can be set as XClarity Controller Network connector.

To set Ethernet 1 connector as XClarity Controller Network connector, start Setup Utility and select BMC Settings ➙ Network Settings ➙ Network Settings Network Interface Port : Shared. Then, click Shared NIC on and select Share OnLom Port:01.

7 8 USB 3.2 Gen 1 connectors​

Used to attach a device that requires a USB 2.0 or 3.0 connection, such as a keyboard, a mouse, or a USB flash drive.

9 NMI button​

Press this button to force a nonmaskable interrupt to the processor. You might have to use a pen or the end of a straightened paper clip to press the button. You can also use it to force a blue-screen memory dump. Use this button only when you are directed to do so by Lenovo Support.

10 PCIe slots​

There are four PCIe slots on the system board to install appropriate PCIe adapters. For information about the PCIe slots, see Specifications.