3-2
Cisco UCS C210 Server Installation and Service Guide
OL-20887-02
Chapter 
Status LEDs 
This section describes the locations and interpretations of LEDs on the server that can provide status and 
troubleshooting information. This section includes the following topics:
  • Front Panel LEDs, page 3-2
  • Rear Panel LEDs, page 3-4
Front Panel LEDs 
Figure 3-1 shows the names and locations of the front panel LEDs. 
Figure 3-1 Front Panel LEDs 
Table 3-1 describes the possible states and interpretations for the LEDs that are shown in Figure 3-1.
1 Locator LED/Locator button 2 Network activity LED
3 System fault LED 4 Power status LED/Power button
5 CPU fault LED 6 Memory fault LED
7 Power supply fault LED 8 DVD activity LED
9 Hard drive activity LED 10 Hard drive fault LED
Ta b l e  3-1 Front Panel LEDs  
LED Name State
Locator   • Off—The Locator LED is not in use.
  • Blue, flashing—The Locator LED button was pressed and the 
Locator LED flashes on the front and rear panels to help you find 
the server in a rack.
Network activity   • Off—The server is powered off or in standby power mode.
  • Green, blinking—The server is communicating with the network in 
main power mode. The blink rate is faster as network activity 
increases.