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Cisco UCS C24 Server Installation and Service Guide
OL-26647-01
Chapter 3 Maintaining the Server
Status LEDs and Buttons
Rear Panel LEDs and Buttons
Figure 3-2 shows the rear panel LEDs and buttons. Table 3-2 defines the LED s tates.
Figure 3-2 Rear Panel LEDs and Buttons
1Power supply fault LED 510/100/1000 Ethernet dedicated management
link status LED
2Power supply AC OK LED 610/100/1000 Ethernet dedicated management
link speed LED
31-Gb Ethernet link speed LED 7Identification button/LED
41-Gb Ethernet link status LED –
Tab l e 3-2 Rear Panel LEDs, Definitions of States
LED Name State
Power supply fault • Off—The power supply is operating normally.
• Amber, blinking—An event warning threshold has been reached, but the power
supply continues to operate.
• Amber, solid—A critical fault threshold has been reached, causing the power
supply to shut down (for example, a fan failure or an over-temperature condition).
Power supply AC OK • Off—There is no AC power to the power supply.
• Green, blinking—AC power OK, DC output not enabled.
• Green, solid—AC power OK, DC outputs OK.
1-Gb Ethernet link speed • Off—link speed is 10 Mbps.
• Amber—link speed is 100 Mbps.
• Green—link speed is 1 Gbps.
1-Gb Ethernet link status • Off—No link is present.
• Green—Link is active.
• Green, blinking—Traffic is present on the active link.
10/100/1000 Ethernet dedicated
management link speed • Off—link speed is 10 Mbps.
• Amber—link speed is 100 Mbps.
• Green—link speed is 1 Gbps.
285244
PSU 2 PCIe 4 PCIe 3 PCIe 1
PCIe 2
PCIe 5
PSU 1
PSU 1PSU 1
12
3
4
5
6
7