2 Identification button/LED (blue): Use this blue LED to visually locate the server among other servers.
This LED is also used as a presence detection button. You can use Lenovo XClarity Administrator to light this
LED remotely. The states of the identification LED are as follows:
Off: Presence detection off.
Flashing rapidly (4 times per second): (on XCC firmware version 3.10 or later) The server is not activated
yet and has no power permission. See Activation guide to activate the system.
Flashing slowly (once per second): Presence detection on.
On: Presence detection on.
3 System-error LED (yellow): When this yellow LED is lit, it indicates that a system error has occurred.
4 Wireless enabled LOM module reset button: The reset pin for the wireless enabled LOM module.
5 NMI button: Press this button to force a nonmaskable interrupt (NMI) to the processor. By this way, you
can blue screen the server and take a memory dump. You might have to use a pen or the end of a
straightened paper clip to press the button.
6 XClarity Controller mini USB connector: Used to attach a mini USB to manage the system using XClarity
Controller.
Rear view
The rear of the server provides access to several components, including the power supplies, PCIe adapters,
serial port, and Ethernet port.
Figure 9. Rear view - 12V power distribution module (PDM)
Table 8. Rear view - 12V power adapter model
1 WLAN Antenna connectors (available only when M.2
WLAN module is installed)
4 USB 2.0 connectors
2 RS-232 port (RJ-45)
5 Power connector 1
3 LTE Antenna connectors (available only when M.2 LTE
module is installed)
6 Power connector 2
Chapter 2. Server components 21
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