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Status
Color
On
Green
Blinking
Green
Off
None
4
System ID button/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.
System error LED (yellow)
5
The system error LED provides basic diagnostic functions for your server.
Status
Color
On
Yellow
Off
None
Power supply LEDs
This topic provides information about various power supply LED status and corresponding action
suggestions.
The following minimal configuration is required for the server to start:
• One processor
• One memory module in slot 3
• One power supply unit
• One drive with RAID adapter and backplane or backplate (if OS is needed for debugging)
• One rear system fan, one heat sink fan, and one front system fan for drives
Description
The server is connected to a network.
The network is connected and active.
The server is disconnected from the network.
Description
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.
The server is off or the server is on and is
working correctly.
Action
Check system logs or internal error LEDs to
identify the failed part.
None.
.
Chapter 2
Server components
33
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