Lenovo ThinkSystem SR950 Setup Manual page 32

• Power button and power LED: Press this button to turn the server on and off manually. The states of
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the power LED are as follows:
Off: Power is not present or the power supply has failed.
Flashing rapidly (4 times per second): 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): The server is turned off and is ready to be turned on. You can
press the power button to turn on the server.
On: The server is turned on.
• Network activity LED: When this LED flickers, it indicates that the server is transmitting to or receiving
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signals from the Ethernet LAN.
• System ID button/LED: Use this blue LED to visually locate the server among other servers. This LED
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is also used as a presence detection button. You can use Lenovo XClarity Administrator to light this LED
remotely.
• System-error LED: When this yellow LED is lit, it indicates that a system error has occurred. A system-
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error LED is also on the rear of the server. Messages on the LCD system information display panel and
LEDs on other server components might also be lit to help isolate the error. This LED is controlled by the
Lenovo XClarity Controller.
LCD system information display panel
The front operator panel comes with a tab, which can be pulled to access the LCD system information
display panel. See "LCD system information display panel" on page 28 for more information.
LCD system information display panel
The following section includes an overview of the LCD system information display panel, which displays
various types of information about the server.
The LCD system information display panel attached to the front of the server allows quick access to system
status, firmware, network, and health information.
ThinkSystem SR950 Setup Guide
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