Table 50. Front operator panel LEDs
1 “Power button with power status LED (green)” on page
295
3 “System ID button with system ID LED (blue)” on page
295
2 “Network activity LED (green)” on page 295 4 “System Error LED (yellow)” on page 295
1 Power button with power status LED (green)
You can press the power button to power on the server when you finish setting up the server. You also can
hold the power button for several seconds to power off the server if you cannot shut down the server from
the operating system. The states of the power LED are as follows:
Status Color Description
Off
None No power supply is properly installed, or the LED itself has failed.
Flashing rapidly (four
times per second)
Green The server is turned off and is not ready to be turned on. The power button is
disabled. This will last approximately 5 to 10 seconds.
Flashing slowly (once
per second)
Green The server is turned off and is ready to be turned on. You can press the power
button to turn on the server.
Lit Green The server is turned on.
2 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.
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 provides basic diagnostic functions for your server. If the system error LED is lit, one or
more LEDs elsewhere in the server might also be lit to direct you to the source of the error.
Chapter 8. Problem determination 295
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