Lenovo ThinkSystem SR550, Maintenance Manual

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Figure 12. LEDs on the rear of the server
Table 9. LEDs on the rear 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
For the detailed information, see “Front I/O assembly” on page 19.
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.
5
Power input LED
6 Power output LED
7 Power supply error LED
Each hot-swap power supply has three status LEDs.
Chapter 2
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Server components
25