Power / Sleep Led; Table 47. Standard Control Panel Led Functions; Table 48. Ssi Power Led Operation - Intel SR1500 - AXXMINIDIMM DDR-2 RAID Controller Cache Memory Manual

Standard Control Panel
The following table identifies each LED and describes their functionality.
Reference
NIC1 / NIC2
A
Activity
Power / Sleep
B
(on standby power)
System Status
C
(on standby power)
D Disk Activity
E 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, the system fault LED, and the NIC LED's are
located on the baseboard.
8.2.1

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.
56

Table 47. Standard Control Panel LED Functions

LED Color
Green
Green
Green
Off
Green/Amber
Green
Amber
Off
Green
Off
Blue
Off

Table 48. 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.
Intel order number D31982-006
Intel® Server System SR1550AL
State
On NIC Link
Blink NIC Activity
On Legacy power on / ACPI S0 state
1,4
Blink Sleep / ACPI S1 state
Off Power Off / ACPI S4 or S5 state
Alternating Pre DC Power On – 30-35 second
Blink BMC Initialization
On Running / normal operation
1,2
Blink Degraded
On Critical or non-recoverable condition.
1,2
Blink Non-critical condition.
Off POST / system stop.
Random blink Provides an indicator for disk activity.
3
Off No hard disk activity
On Identify active via command or button.
Off No Identification.
Description
Description
Revision – 1.3