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Overview
5
System health
Power supply status
6
7
Fan status
8
Network link activity
9
Temperature status
• Green—The server is running in normal operating
condition.
• Green, blinking—The server is performing system
initialization and memory check.
• Amber, steady—The server is in a degraded
operational state (minor fault). For example:
• Power supply redundancy is lost.
• CPUs are mismatched.
• At least one CPU is faulty.
• At least one DIMM is faulty.
• At least one drive in a RAID configuration failed.
• Amber, 2 blinks—There is a major fault with the
system board.
• Amber, 3 blinks—There is a major fault with the
memory DIMMs.
• Amber, 4 blinks—There is a major fault with the
CPUs.
• 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.
• Green—All fan modules are operating properly.
• Amber, blinking—One or more fan modules breached
the non-recoverable threshold.
• Off—The Ethernet LOM port 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.
• 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.
Cisco APIC M4/L4 Server Installation and Service Guide
Front-Panel LEDs
7
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