Intel® Server Board S3420GP TPS
Intel® Light Guided Diagnostics
Revision 2.4
Intel order number E65697-010
95
9.
Intel
®
Light Guided Diagnostics
The server board has several on-board diagnostic LEDs to assist in troubleshooting board-level
issues. This section shows where each LED is located on the server board and describes the
function of each LED.
9.1
System Status LED (For the Intel
®
Server Board S3420GPLX and
S3420GPLC)
The server board provides a system status indicator LED on the front panel. This indicator LED
has specific states and corresponding interpretation as shown in the following table.
Table 60. Front Panel Status LED Behavior Summary
Color
State
Criticality
Description
Off
N/A
Not ready
AC power off. If no degraded, non-critical, critical, or non-
recoverable conditions exist.
Amber
Solid on
Critical, non-
recoverable
Fatal alarm – system has failed or shutdown:
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.
Uncorrectable memory error.
Amber Blink
Non-critical
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.
Correctable error threshold has been reached for a failing DDR3
DIMM.
Green
Solid on
System 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.
Unable to use all of the installed memory (more than one DDR3
DIMM installed).
Correctable error threshold has been reached for a failing DDR3
DIMM on a given channel.
