Intel S2600CP Technical Product Specification - Page 214

Appendix E: POST Code Diagnostic LED Decoder Intel® Server Board S2600CP and Server System P4000CP TPS Appendix E: POST Code Diagnostic LED Decoder 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 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, the Diagnostic LEDs can be used to identify the last POST process that was executed. Each POST code is represented by a sequence of eight amber diagnostic LEDs. The POST codes are divided into two groups of LEDs as shown in below figure. The diagnostic LED #7 is labeled as "MSB", and the diagnostic LED #0 is labeled as "LSB". Figure 68. POST Code Diagnostic LED Decoder A - System Status LED B - System ID LED LSB 1 2 3 4 5 6 MSB - Diagnostic LED 198 Intel order number G26942-003 Revision 1.2