Rear view LEDs
The illustration in this section shows the LEDs on the rear of the server.
Figure 10. Rear view LEDs of the server
Table 19.  LEDs on the rear of the server
Callout Callout
1  System ID LED
2  Ethernet link LED
3  Ethernet activity LED
4  System error 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.
2  3  Ethernet status LEDs
The BMC management connector has two status LEDs.
Ethernet status LED
Color Status
Description
2  Ethernet link LED Green On Network link is established.
None Off Network link is disconnected.
3  Ethernet activity LED Green Blinking Network link is connected and active.
None
Off The server is disconnected from a LAN.
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 IO assembly” on page 27.
5  6  7  Power supply LEDs
52
ThinkSystem SR650 V2Maintenance Manual