Technical Product Specification

Intel® Light-Guided Diagnostics Intel® Server Board S5520UR and S5520URT TPS
Intel order number E44031-012 Revision 1.9
122
Color
State
Criticality
Description
 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.
 Other degraded events (see Appendix B).
Amber
Blink
Non-critical
Non-fatal alarm – system is likely to fail
 Critical voltage threshold crossed.
 VRD hot asserted.
 Minimum numbers of fans to cool the system are not present
or have failed.
 In a non-mirroring mode, if the threshold of ten correctable
errors is crossed within the window.
 Other non-critical events (see Appendix B).
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 (for instance, processor stepping
mismatch).
 Other critical or non-recoverable events (see Appendix B).