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Front LEDs

The following illustration shows LEDs on the front of the solution. By viewing the status of LEDs, you can often identify the source of the error.

Figure 1. Front LEDs

Table 1. Front LEDs
1 UID button with LED (blue)2 Power button with power status LED (green)
3 Security LED (green)4 System Error LED (yellow)
5 UART status LED (white) 

1 UID button with LED (blue)​

Use this UID button and the blue UID LED to visually locate the server.

Each time you press the UID button, the state of both the UID LEDs changes. The LEDs can be changed to on, blinking, or off. Press the UID button down and hold for five seconds, you can reset BMC.

You can also use BMC or a remote management program to change the state of the UID LEDs to assist in visually locating the server among other servers.

2 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:

StatusColorDescription
OffNoneNo power supply is properly installed, or the LED itself has failed.
Flashing rapidly (four times per second)GreenThe 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)GreenThe server is turned off and is ready to be turned on. You can press the power button to turn on the server.
LitGreenThe server is turned on.

3 Security LED (green)​

The states of Security LED are as following:
  • Solid on: The server is operating with security feature enabled (SED enabled or intrusion enabled).
  • Blinking: The server is in System Lockdown Mode. Activate or unlock the system for operation. See Activate or unlock the system.
  • Off: System is activated but no security feature is enabled on the server.

4 System Error LED (yellow)​

The system error LED helps you to determine if there are any system errors.

StatusColorDescriptionAction
OnYellow
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.

Check the Event log to determine the exact cause of the error.

OffNoneThe server is off or the server is on and is working correctly.None.

5 UART status LED (white)​

StatusColorDescription
OnWhiteUART output with XCC log.
Off (Default)NoneUART output with CPU log.