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Control Button Functions
LED Indicator Status
Item Description
Power/
Sleep
button
Toggles the system power on/off. Sleep button for
ACPI-compatible operating systems.
Reset
button
Reboots and initializes the system.
ID button Toggles the front panel ID LED and the baseboard ID LED on
and off. The baseboard LED is visible from the rear of the
chassis and allows you to locate the server from the rear of a
rack of systems.
NMI button Puts the server in a halt-state for diagnostic purposes.
Item Description
NIC 1
activity LED
NIC 2
activity LED
Continuous green light indicates a link between the system
and the network to which it is connected.
Blinking green light indicates network activity.
Power/
Sleep LED
Continuous green light indicates the system has power
applied to it.
Blinking green indicates the system is in S1 sleep state (see
Note )
No light indicates the power is off / is in ACPI S4 or S5 state.
Hard disk
drive
status LED
Random blinking green light indicates hard disk drive activity
(SCSI or SATA).
No light indicates no hard disk drive activity.
System
Status LED
Solid green indicates normal operation
Blinking green indicates degraded performance
Solid amber indicates a critical or non-recoverable condition
Blinking amber indicates a non-critical condition
No light indicates POST is running or the system is off (see
Note 1)