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Node rear view

This section contains information on the controls and connectors on the rear of the ThinkSystem SD550 V3 node. Depending on the specific configuration, some of the components or connectors might not be supported.

Figure 1. Rear view of the ThinkSystem SD550 V3 node
Rear view of the ThinkSystem SD550 V3 node
Table 1. Components on the rear view
1 PCIe slot 15 XCC system management port (10/100/1000 Mbps RJ-45)
2 PCIe slot 26 USB 3.2 Gen 1 (5 Gbps) connector
3 OCP slot7 USB 2.0 connector with Lenovo XClarity Controller (XCC) management
4 Mini DisplayPort connector 

1 / 2 PCIe slots​

Install PCIe adapters to the riser.

1 PCIe slot 1

PCI Express 4.0 x16, FH/HL, 75-watt

2 PCIe slot 2

PCI Express 5.0 x16, FH/HL, 75-watt

3 OCP slot​

The system may support a 2-port or a 4-port OCP module for network connections. Port numbering are shown in the illustrations below.
Figure 2. Port numbering — 2-port OCP module
Port numbering — 2-port OCP 3.0 Ethernet adapter
Figure 3. Port numbering — 4-port OCP 3.0 module
Port numbering — 4-port OCP 3.0 Ethernet adapter

4 Mini DisplayPort connector​

Connect a Mini DisplayPort-compatible video device, such as a monitor, to this connector.

Note
The maximum video resolution is 1920 x 1200 at 60 Hz.

5 XCC system management port (10/100/1000 Mbps RJ-45)​

The node has a 10/100/1000 Mbps RJ-45 connector dedicated to Lenovo XClarity Controller, which cannot be accessed directly from the production network. A dedicated management network provides additional security by physically separating the management network traffic from the production network. You can use the Setup Utility to configure the node to use a dedicated systems-management network or a shared network.

See the following for more information:

6 USB 3.2 Gen 1 (5 Gbps) connector​

Connect a USB device, such as a mouse, keyboard, or other devices, to this connector.

7 USB 2.0 connector with Lenovo XClarity Controller (XCC) management​

Note
This is the only USB port that supports USB automation update of the firmware and RoT security module.

Connection to Lenovo XClarity Controller is primarily intended for users with a mobile device running the Lenovo XClarity Controller mobile application. When a mobile device is connected to this USB port, an Ethernet over USB connection is established between the mobile application running on the device and the Lenovo XClarity Controller.

Select Network in BMC Configuration to view or modify settings.

Four types of settings are available:

  • Host only mode

    In this mode, the USB port is always solely connected to the server.

  • BMC only mode

    In this mode, the USB port is always solely connected to Lenovo XClarity Controller.

  • Shared mode: owned by BMC

    In this mode, connection to the USB port is shared by the server and Lenovo XClarity Controller, while the port is switched to Lenovo XClarity Controller.

  • Shared mode: owned by host

    In this mode, connection to the USB port is shared by the server and Lenovo XClarity Controller, while the port is switched to the server.

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