Lenovo ThinkSystem SR650 Maintenance Manual page 25

3 Power button with power status LED
You can press the power button to turn on the server when you finish setting up the server. You also can hold
the power button for several seconds to turn off the server if you cannot turn off the server from the operating
system. The power status LED helps you to determine the current power status.
Status Color
Solid on Green
Slow blinking Green
(about one flash
per second)
Fast blinking Green
(about four
flashes per
second)
Off None
4 Network activity LED
The network activity LED on the front I/O assembly helps you identify the network connectivity and activity.
Status Color
On Green
Blinking Green
Off None
5
System ID button with system ID LED
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.
6 System error LED
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.
Description
The server is on and running.
The server is off and is ready to be powered on (standby state).
The server is off, but the XClarity Controller is initializing, and the server is not
ready to be powered on.
There is no ac power applied to the server.
The server is connected to a network.
The network is connected and active.
The server is disconnected from the network.
Description
.
Chapter 2 Server components
17