
Standard Control Panel Intel® Server System SR1600UR TPS
48 Intel order number E45725-010 Revision 1.8
Amber
Critical or non-recoverable condition.
Disk Activity
Provides an indicator for disk activity.
Off Off
No hard disk activity
System
Identification
Identify active via command or button.
Notes:
1. Blink rate is ~1 Hz 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. 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 the BIOS, the LED state in effect at the time of power-off is 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 is blinking while the system status LED is off. This is 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 LEDs are
located on the Intel
®
Server Board S5520UR.
7.2.1 Power/Sleep LED
Table 37. SSI Power LED Operation
System power is off, and the BIOS has not initialized the chipset.
System power is on, but the BIOS has not yet initialized the chipset.
Mechanical is off, and the operating system has not saved any
context to the hard disk.
Mechanical is off. The operating system has saved context to the
hard disk.
DC power is still on. The operating system has saved context and
gone into a level of low-power state.
System and the operating system are up and running.
Note:
1. Blink rate is ~ 1 Hz at 50% duty cycle.
7.2.2 System Status LED
Table 38. Control Panel LED Operation
Unable to use all of the installed memory (more than one
DIMM installed).
Correctable errors over a threshold of 10 and migrating to
a spare DIMM (memory sparing). This indicates that the
user no longer has spare DIMMs indicating a redundancy
lost condition. The corresponding DIMM LED should light
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