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Cisco UCS C240 M4 Server Installation and Service Guide
OL-32474-01
Chapter 3 Maintaining the Server
Status LEDs and Buttons
7 Temperature status • Green—The server is operating at normal temperature.
• Amber, steady—One or more temperature sensors breached the critical
threshold.
• Amber, blinking—One or more temperature sensors breached the
non-recoverable threshold.
8 Power supply status
• Green—All power supplies are operating normally.
• Amber, steady—One or more power supplies are in a degraded operational state.
• Amber, blinking—One or more power supplies are in a critical fault state.
9 Network link activity
• Off—The Ethernet link is idle.
• Green—One or more Ethernet LOM ports are link-active, but there is no activity.
• Green, blinking—One or more Ethernet LOM ports are link-active, with activity.
Table 3-1 Front Panel LEDs, Definitions of States (continued)
LED Name State
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