Lenovo ThinkSystem SR645 Setup Manual page 32

Use this system ID button and the blue system ID LED to visually locate the server. A system ID LED is also
located on the rear of the server. Each time you press the system ID button, the state of both the system ID
LEDs changes. The LEDs 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 LEDs 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
The system error LED helps you to determine if there are any system errors.
Status Color
On Yellow
Off None
ThinkSystem SR645 Setup Guide
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Description
An error has been detected on the server.
Causes might include but are not limited to
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.
• A hot-swap fan has been removed.
• 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 the event log to determine the exact
cause of the error.
Alternatively, follow the light path
diagnostics to determine if additional LEDs
are lit that will direct you to identify the
cause of the error.
None.