Status Color
Description
Action
On Yellow
An error has been detected on the server. 
Causes might include one or more of the 
following errors: 
•  The temperature of the server reached 
the non-critical temperature threshold.
•  The voltage of the server reached the 
non-critical voltage threshold.
•  A fan has been detected to be running at 
low speed.
•  The power supply has a critical error.
•  The power supply is not connected to 
the power.
Check the Event log to determine the exact 
cause of the error. 
Off None
The server is off or the server is on and is 
working correctly.
None.
9  Network Activity LED (green)
The network activity LED helps you identify the network connectivity and activity. 
Status Color
Description
On Green The server is connected to a network.
Blinking Green The network is connected and active.
Off
None The server is disconnected from the network.
10  USB 2.0 connector with Lenovo XClarity Controller management
Connect a USB 2.0 device, such as a mouse, keyboard, or other devices, to this connector. 
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
Chapter 2. Server components 19