Datasheet

Intel® Server System SR1550AL Intel® Local Control Panel
Revision – 1.3
Intel order number D31982-006
63
9.1.2 System Status LED
Table 56. Control Panel LED Operation
Color State Criticality Description
Off N/A Not ready AC power off
Green/
Amber
Alternating
Blink
Not ready Pre DC Power On – 30-35 second BMC Initialization when
AC is applied to the server. Control Panel buttons are
disabled until BMC initialization is complete.
Green Solid on Ok System booted and ready
Green Blink Degraded System degraded
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 spared DIMMs indicating a redundancy lost
condition. Corresponding DIMM LED should light up.
In mirrored configuration, when memory mirroring takes
place and system loses memory redundancy. This is not
covered by (2).
Redundancy loss such as power-supply or fan. This does
not apply to non-redundant sub-systems.
PCI-e link errors
CPU failure / disabled – if there are two processors and
one of them fails
Fan alarm – Fan failure. Number of operational fans
should be more than minimum number needed to cool the
system
Non-critical threshold crossed – Temperature and voltage
Amber Blink Non-critical Non-fatal alarm – system is likely to fail
Critical voltage threshold crossed
VRD hot asserted
Minimum number of fans to cool the system not present
or failed
In non-sparing and non-mirroring mode if the threshold of
ten correctable errors is crossed within the window
Amber Solid on Critical, non-
recoverable
Fatal alarm – system has failed or shutdown
DIMM failure when there is one DIMM present, no good
memory present
Run-time memory uncorrectable error in non-redundant
mode
IERR signal asserted
Processor 1 missing
Temperature (CPU ThermTrip, memory TempHi, critical
threshold crossed)
No power good – power fault
Processor configuration error (for instance, processor
stepping mismatch)
9.1.2.1 System Status LED – BMC Initialization
When AC power is first applied to the system and 5V-STBY is present, the BMC controller on
the server board requires 30-35 seconds to initialize. During this time, the system status LED
will blink, alternating between amber and green, and the power button functionality of the control
panel is disabled, preventing the server from powering up. Once BMC initialization has
completed, the status LED will stop blinking and the power button functionality is restored and
can be used to turn on the server.