Intel®
Server System SR1625UR TPS
Standard Control Panel Functionality
Revision 1.5
Intel order number E47487-007
63
9.2.2
System Status LED
Table 51. Control Panel LED Operation
Color
State
Criticality
Description
Off
N/A
Not ready
AC power off
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 ten 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 up.
In a mirrored configuration, when memory mirroring takes
place and system loses memory redundancy. This is not
covered by the second bullet above.
Redundancy loss such as power supply or fan. This does not
apply to non-redundant subsystems.
PCI Express* 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 the 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 are not present or
have failed
In a 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 shut down
DIMM failure when there is one DIMM present and no good
memory is present
Run-time memory uncorrectable error in non-redundant mode
IERR signal asserted
Processor 1 missing
Temperature (e.g., CPU ThermTrip, memory TempHi, critical
threshold crossed)
No power good – power fault
Processor configuration error (e.g., processor stepping mismatch)
9.2.3
Drive Activity LED
The drive activity LED on the front panel indicates drive activity from the on-board hard disk
controllers. The Intel
®
Server Board S5520UR also provides a header giving access to this LED
for add-in controllers.
