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Intel® Server Chassis SR1475 / Intel® Server System SR1475NH1-E
The following table identifies each LED and describes their functionality.
LED
NIC1 / NIC2
Activity
Power / Sleep
(on standby power)
Disk Activity
System Identification
Notes:
1.
Blink rate is ~1 Hz with at 50% duty cycle.
2.
The amber status takes precedence over the green status. When the amber LED is on or blinking, the green
LED is off.
3.
Also off when the system is powered off (S4/S5) or in a sleep state (S1).
4.
The power LED sleep indication is maintained on standby by the chipset. If the system is powered down
without going through BIOS, the LED state in effect at the time of power off will be restored when the system
is powered on until the BIOS clears it. If the system is not powered down normally, it is possible that the
Power LED will be blinking at the same time that the system status LED is off due to a failure or
configuration change that prevents the BIOS from running.
The current limiting resistors for the power LED and the NIC LEDs are located on the Intel
Server Board SE7230NH1-E.
4.2.1
Power / Sleep LED
State
Power Mode
Power Off
Non-ACPI
Power On
Non-ACPI
S5
ACPI
S4
ACPI
S3-S1
ACPI
S0
ACPI
Notes:
1
. Blink rate is ~ 1Hz with at 50% duty cycle.
4.2.2
Drive Activity LED
The drive activity LED on the front panel indicates drive activity from the onboard hard disk
controllers. The server board also provides a header giving access to this LED for add-in
controllers.
Revision 1.0
Table 17. Standard Control Panel LED Functions
Color
State
Green
On
NIC Link
Green
Blink
NIC Activity
Green
On
Legacy power on / ACPI S0 state
1,4
Blink
Sleep / ACPI S1 state
Off
Off
Power Off / ACPI S4 or S5 state
Green
Random
Provides an indicator for disk activity.
blink
3
Off
Off
No hard disk activity
Blue
Blink
Identify active via command or button.
Off
Off
No Identification.
Table 18. SSI Power LED Operation
LED
Off
System power is off, and the BIOS has not initialized the chipset.
On
System power is on, but the BIOS has not yet initialized the chipset.
Off
Mechanical is off, and the operating system has not saved any context
to the hard disk.
Off
Mechanical is off. The operating system has saved context to the hard
disk.
Slow blink 1
DC power is still on. The operating system has saved context and
gone into a level of low-power state.
Steady on
System and the operating system are up and running.
Description
Description
®
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