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Front I/O modules LEDs

The front I/O module of the server provides controls, connectors, and LEDs.

The following illustrations show the front I/O module for different server models. To locate the front I/O module, see Server components for more information.
Figure 1. Front I/O module LEDs
Front I/O module LEDs
Table 1. Front I/O module LEDs
1 Power button/LED (green)4 System ID button/LED (blue)
2 Drive activity LED (green)
Note
For onboard SATA indication only
5 System Error LED (yellow)
3 Network activity LED (green)
Note
For onboard LAN indication only
 

1 Power button/LED (green)​

You can press the power button to turn on the server when you finish setting up the server. You can also hold the power button for several seconds to turn off the server if you cannot turn off the server from the operating system. See Power on the server for more information. The power status LED helps you determine the current power status.
StatusColorDescription
Solid onGreenThe server is on and running.
Slow blinking (about one flash per second)GreenThe server is off and is ready to be powered on (standby state).
Fast blinking (about four flashes per second)GreenThe server is off, but the XClarity Controller is initializing, and the server is not ready to be powered on.
OffNoneThere is no ac power applied to the server.

2 Drive activity LED (green)​

The drive activity LED helps you to determine the status of the drive activity.
Note
The drive activity LED only indicates the activities of drives that are connected to the SATA ports on the system board.
StatusColorDescription
Solid onGreenThe drive is active.
FlashingGreenThe drive is being accessed.
OffNoneThe drive is not active.

3 Network activity LED (green)​

The network activity LED helps you identify the network connectivity and activity.

StatusColorDescription
OnGreenThe server is connected to a network.
BlinkingGreenThe network is connected and active.
OffNoneThe server is disconnected from the network.

4 System ID button/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.

5 System error LED (yellow)​

The system error LED provides basic diagnostic functions for your server.

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.

  • The power supply is not connected to the power.

Check system logs or internal error LEDs to identify the failed part.

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