Lenovo ThinkAgile HX1521-R User Manual page 22

Figure 8. Rear view LEDs of the server
Table 5. LEDs on the rear of the server
Callout
1
System ID LED
3
Ethernet activity LED
5
Power input 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 3 Ethernet status LEDs
The XClarity Controller network connector has two status LEDs.
Ethernet status LED
2
Ethernet link LED
3
Ethernet activity LED
4 System error LED
The system error LED provides basic diagnostic functions for your server. If the system error LED is lit, one or
more LEDs elsewhere in the server might also be lit to direct you to the source of the error. For more
information, see "Front I/O assembly" on page 13.
5 Power input LED
6 Power output LED
7 Power supply error LED
18
User Guide forThinkAgile HX1521-R Node ThinkAgile HX3521-G NodeThinkAgile HX5521 NodeThinkAgile HX5521-C
NodeThinkAgile HX7521 Node
Color Status
Green On
None Off
Green Blinking
None
Off
Callout
2
Ethernet link LED
4
System error LED
6
Power output LED
Description
Network link is established.
Network link is disconnected.
Network link is connected and active.
The server is disconnected from a LAN.