Skip to main content

Front operator panel LEDs

This topic provides information on the front operator panel LEDs.

Depending on the server model, the server comes with the front operator panel without LCD display or front operator with LCD display (integrated diagnostics panel). For information about the integrated diagnostics panel with LCD display, see Integrated diagnostics panel.

The following illustration shows the front operator panel on the media bay. For some server models, the front operator panel is integrated on the rack latch. See Front I/O module.

Figure 1. Front operator panel LEDs
Front operator panel LEDs
1 Power button with power status LED (green)2 Network activity LED (green)
3 System ID button with system ID LED (blue)4 System error LED (yellow)

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:

StatusColorDescription
OffNonePower is not present, or the power supply unit has failed.
Fast blinking (about four flashes per second)Green

  • The server is off, but the XClarity Controller is initializing, and the server is not ready to be powered on.

  • System-board-assembly power has failed.

Slow blinking (about one flash per second)GreenThe server is off and is ready to be powered on (standby state).
Solid onGreenThe server is on and running.

2 Network activity LED (green)​

Compatibility of the NIC adapter and the network activity LED:
NIC adapterNetwork activity LED
OCP moduleSupport
PCIe NIC adapterNot support
When an OCP module is installed, the network activity LED on the front I/O assembly helps you identify the network connectivity and activity. If no OCP module is installed, this LED is off.
StatusColorDescription
OnGreenThe server is connected to a network.
BlinkingGreenThe network is connected and active.
OffNoneThe server is disconnected from the network.
Note
If the network activity LED is off when an OCP module is installed, check the network ports in the rear of your server to determine which port is disconnected.

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 helps you to determine if there are any system errors.

StatusColorDescriptionAction
OnYellowAn error has been detected on the server. Causes might include but are not limited to the following errors:

  • A fan failure

  • A memory error

  • A storage failure

  • A PCIe device failure

  • A power supply failure

  • A processor error

  • A system I/O board or processor board error

  • Check the Lenovo XClarity Controller event log and the system event log to determine the exact cause of the error.

  • Check if additional LEDs elsewhere in the server are also lit that will direct you to the source of the error. See Troubleshooting by system LEDs and diagnostics display.

  • Save the log if necessary.

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