Intel S5520SC Specifiche Pagina 140

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Intel® Light Guided Diagnostics Intel® Workstation Board S5520SC TPS
Revision 1.7
Intel order number: E39530-010
126
8.5 POST Code Diagnostic LEDs
Eight amber POST code diagnostic LEDs are located on the back edge of the workstation board
in the rear I/O area of the workstation board by the serial A 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 workstation 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 E.
A. Diagnostic LED #7 (MSB LED) E. Diagnostic LED #3
B. Diagnostic LED #6 F. Diagnostic LED #2
C. Diagnostic LED #5 G. Diagnostic LED #1
D. Diagnostic LED #4 H. Diagnostic LED #0 (LSB LED)
A. Diagnostic LED #7 (MSB LED) E. Diagnostic LED #3
B. Diagnostic LED #6 F. Diagnostic LED #2
C. Diagnostic LED #5 G. Diagnostic LED #1
D. Diagnostic LED #4 H. Diagnostic LED #0 (LSB LED)
Figure 50. POST Code Diagnostic LED Location
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