Server Board Features
Intel® Server Board S5520HC, S5520HCT and S5500HCV Service Guide 7
Intel
®
Light-Guided Diagnostics
Callout LED Functions
A. POST Diagnostics LEDs POST Diagnostics LEDs: The sequence of lit POST Diagnostics LEDs is used to
identify specific errors that might occur during the boot process. For a description of
how to read these LEDs, refer to the appendix of the Technical Product
Specification.
B. ID LED You can turn this LED on and off 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. 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, refer to the
Technical Production Specification.
D. System fan 5 fault LED This LED indicates a fault occurred with a fan installed on the Server Board System
Fan 5 header. Replace the faulty unit.
E. Processor 1 fan fault
LED
This LED applies only to server 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.
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