Intel® Light-Guided Diagnostics
Intel
®
Server Board S5500BC TPS
Intel order number: E42249-003
Revision 1.0
66
Table 30. System Status LED Indicator States
Color
State
System Status
Description
Green
Solid on
OK
System booted and ready
Green blink
Degraded
System degraded:
Non-critical
temperature threshold asserted.
Non-critical voltage threshold asserted.
Non-critical fan threshold asserted.
Fan redundancy lost, sufficient system cooling maintained. This
does not apply to non-redundant systems.
Power supply predictive failure.
Power supply redundancy lost. This does not apply to non-
redundant systems.
Correctable errors over a threshold of 10 and migrating to a spare
DIMM (memory sparing). This indicates the user no longer has
spared DIMMs indicating a redundancy lost condition. Corresponding
DIMM LED should light up.
Amber blink
Non-fatal
Non-fatal alarm – system is likely to fail:
CATERR
asserted.
Critical
temperature threshold asserted.
Critical voltage threshold asserted.
Critical fan threshold asserted.
VRD hot asserted.
SMI Timeout asserted.
Amber Solid
on
Fatal
Fatal alarm – system has failed or shutdown:
CPU
Missing.
Thermtrip
asserted.
Non-recoverable temperature threshold asserted.
Non-recoverable voltage threshold asserted.
Power fault / Power Control Failure.
Fan redundancy lost, insufficient system cooling. This does not
apply to non-redundant systems.
Power supply redundancy lost; insufficient system power. This
does not apply to non-redundant systems.
Off
N/A
Not ready
AC power off, if no degraded, non-critical, critical, or non-recoverable
conditions exist.
7.3 DIMM Fault LEDs
The Intel
®
Server Board S5500BC provides a memory fault LED for each DIMM slot. Refer to
Figure 10 for the LEDs’ location. The DIMM fault LED is illuminated when the system BIOS
disables a DIMM when it reaches a specified number of failures or if specific critical DIMM
failures are detected.
