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. 
Note: If the network activity LED is off when an OCP module is installed, check the 
network ports in the rear of your server to determine which port is disconnected.
3  System ID button with system ID LED (blue)
Use this system ID button and the blue system ID LED to visually locate the server. Each time you press the 
system ID button, the state of the system ID LED changes. The LED can be changed to on, blinking, or off. 
You can also use the Lenovo XClarity Controller or a remote management program to change the state of the 
system ID LED to assist in visually locating the server among other servers.
If the XClarity Controller USB connector is set to have both the USB 2.0 function and XClarity Controller 
management function, you can press the system ID button for three seconds to switch between the two 
functions.
4  System Error LED (yellow)
The system error LED helps you to determine if there are any system errors.
Status Color
Description Action
On Yellow An error has been detected on the server. 
Causes might include but are not limited to 
the following errors: 
•  A fan failure
•  A memory error
•  A storage failure
•  A PCIe device failure
•  A power supply failure
•  A processor error
•  A system I/O board or processor board 
error
•  Check the Lenovo XClarity Controller 
event log and the system event log to 
determine the exact cause of the error.
•  Check if additional LEDs elsewhere in 
the server are also lit that will direct you 
to the source of the error. See 
“Troubleshooting by system LEDs and 
diagnostics display” on page 455
.
•  Save the log if necessary.
Off
None The server is off, or the server is on and is 
working correctly.
None.
Integrated diagnostics panel
The Integrated diagnostics panel is attached to the front of the server, while it allows quick access to system 
information such as errors, system status, firmware, network, and health information.
• 
“Diagnostics panel location” on page 458
•  “Diagnostics panel overview” on page 458
•  “Options flow diagram” on page 458
•  “Full menu list” on page 459
Chapter 8. Problem determination 457