Rear view LEDs
The rear of the server provides system ID LED, system error LED, network LEDs, and power supply LEDs.
The following illustration shows the LEDs on the rear view of server models with three PCIe slots. The LEDs
on the rear view of server models with two PCIe slots are the same.
Figure 9. Rear view LEDs
Table 7. LEDs on the rear view of the server
Callout Callout
1 System ID LED 2 System error LED
3 Ethernet link LED 4 Ethernet activity LED
5 Power input LED 6 Power output LED
7 Power supply error LED
1 System ID LED
The blue system ID LED helps you to visually locate the server. A system ID LED is also located on the front
of the server. Each time you press the system ID button, the state of both the system ID LEDs changes. The
LEDs 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 LEDs to assist in visually locating the server
among other servers.
2 System error LED
The system error LED helps you to determine if there are any system errors. For details, see “System error
LED” on page 20.
3 Ethernet link LED
4 Ethernet activity LED
Each Ethernet connector has two status LEDs.
Ethernet status LED
Color Status
Description
3 Ethernet link LED
Green On Network link is established.
None Off Network link is disconnected.
4 Ethernet activity LED
Green Blinking Network link is connected and active.
None Off The server is disconnected from a LAN.
Chapter 2. Server components 25
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