Intel S5520SC Service Guide - Page 17

Intel, Light-Guided Diagnostics - system status led

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Intel® Light-Guided Diagnostics Workstation Board Features Callout A. B. C. D. E. F. G. H. LED System Status LED ID LED POST Diagnostics LEDs System fan 5 fault LED Processor 1 fan fault LED DIMM C1 fault LED DIMM C2 fault LED DIMM B1 fault LED Functions The status LED indicates whether a system is operating correctly, has experienced a minor fault, or a major system error. For details about this LED, see the Technical Production Specification. You can turn off this LED either by pressing a chassis button or by using system management software. This LED is useful when the system is grouped with several systems, such as in a rack, and you need to find the system to perform maintenance on it. POST Diagnostics LEDs: You can use the sequence of lit POST Diagnostics LEDs to identify specific errors that might occur during the boot process. For a description of how to read these LEDs, see the appendix of the Technical Product Specification. This LED indicates a fault occurred with the fan installed on the Workstation board System Fan 5 header. Replace the faulty unit. This LED applies only to workstation systems that use an active heatsink. This LED indicates a fault occurred with the fan installed on the heatsink for processor 1. Replace faulty unit. This LED indicates a fault occurred with the DIMM installed in socket DIMM_C1. Replace the faulty DIMM. This LED indicates a fault occurred with the DIMM installed in socket DIMM_C2. Replace the faulty DIMM. This LED indicates a fault occurred with the DIMM installed in socket DIMM_B1. Intel® Workstation Board S5520SC Service Guide 7

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Workstation Board Features
Intel® Workstation Board S5520SC Service Guide
7
Intel
®
Light-Guided Diagnostics
Callout
LED
Functions
A.
System Status LED
The status LED indicates whether a system is operating correctly, has experienced a
minor fault, or a major system error. For details about this LED, see the Technical
Production Specification.
B.
ID LED
You can turn off this LED either by pressing a chassis button or by using system
management software. This LED is useful when the system is grouped with several
systems, such as in a rack, and you need to find the system to perform maintenance
on it.
C.
POST Diagnostics
LEDs
POST Diagnostics LEDs: You can use the sequence of lit POST Diagnostics LEDs to
identify specific errors that might occur during the boot process. For a description of
how to read these LEDs, see the appendix of the Technical Product Specification.
D.
System fan 5 fault
LED
This LED indicates a fault occurred with the fan installed on the Workstation board
System Fan 5 header. Replace the faulty unit.
E.
Processor 1 fan
fault LED
This LED applies only to workstation systems that use an active heatsink. This LED
indicates a fault occurred with the fan installed on the heatsink for processor 1.
Replace faulty unit.
F.
DIMM C1 fault LED
This LED indicates a fault occurred with the DIMM installed in socket DIMM_C1.
Replace the faulty DIMM.
G.
DIMM C2 fault LED
This LED indicates a fault occurred with the DIMM installed in socket DIMM_C2.
Replace the faulty DIMM.
H.
DIMM B1 fault LED
This LED indicates a fault occurred with the DIMM installed in socket DIMM_B1.