Post Code Diagnostic Leds; Figure 26. Rear Panel Diagnostic Leds - Intel S5500WB Technical Product Specification

Intel® Server Board S5500WB TPS
8.5

POST Code Diagnostic LEDs

Eight amber POST code diagnostic LEDs are located on the back edge of the server board in
the rear I/O area of the server board by the VGA connector.
During the system boot process, the BIOS executes a number of platform configuration
processes, each of which is assigned a specific hex POST code number. As each configuration
routine is started, the BIOS displays the given POST code to the POST code diagnostic LEDs
on the back edge of the server board. To assist in troubleshooting a system hang during the
POST process, you can use the Diagnostic LEDs to identify the last POST process executed.
For a complete description of how these LEDs are read and a list of all supported POST codes,
refer to Appendix A.
C
A B
A ID LED
B Status LED
C RJ-45 GbE/Dual USB connector
D Dual USB connector
Revision 1.3
D E

Figure 26. Rear Panel Diagnostic LEDs

Description
Intel order number E53971-004
F G
E
RJ-45 GbE LAN connector
F RJ-45 Serial port connector
G DB15 Video
H Diagnostic LEDs
Intel® Light-Guided Diagnostics
H
AF003052
Description
73