Intel P4000RP Technical Product Specification - Page 249
Intel® Server Board S1200V3RP, C: POST Code Diagnostic LED Decoder, Table 75. POST Progress LED
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Intel® Server Board S1200V3RP Appendix C: POST Code Diagnostic LED Decoder Diagnostic LED Decoder 1 = LED On, 0 = LED Off Checkpoint Upper Nibble Lower Nibble MSB LSB 8h 4h 2h 1h 8h 4h 2h 1h LED #7 #6 #5 #4 #3 #2 #1 #0 BFh 1 0 1 1 1 1 1 1 MRC is done Description Memory Initialization at the beginning of POST includes multiple functions, including: discovery, channel training, validation that the DIMM population is acceptable and functional, initialization of the IMC and other hardware settings, and initialization of applicable RAS configurations. When a major memory initialization error occurs and prevents the system from booting with data integrity, a beep code is generated, the MRC will display a fatal error code on the diagnostic LEDs, and a system halt command is executed. Fatal MRC error halts do NOT change the state of the System Status LED, and they do NOT get logged as SEL events. The following table lists all MRC fatal errors that are displayed to the Diagnostic LEDs. Table 75. POST Progress LED Codes Diagnostic LED Decoder 1 = LED On, 0 = LED Off Checkpoint Upper Nibble MSB Lower Nibble LSB Description 8h 4h 2h 1h 8h 4h 2h 1h LED #7 #6 #5 #4 #3 #2 #1 #0 MRC Fatal Error Codes E8h No usable memory error 01h = No memory was detected from the SPD read, or invalid config that causes no operable memory. 1 1 1 0 1 0 0 0 02h = Memory DIMMs on all channels of all sockets are disabled due to hardware memtest error. 3h = No memory installed. All channels are disabled. E9h 1 1 1 0 1 0 0 1 Memory is locked by Intel® Trusted Execution Technology and is inaccessible EAh DDR3 channel training error 01h = Error on read DQ/DQS (Data/Data Strobe) init 1 1 1 0 1 0 1 0 02h = Error on Receive Enable 3h = Error on Write Leveling 04h = Error on write DQ/DQS (Data/Data Strobe EBh Memory test failure 01h = Software memtest failure. 02h = Hardware memtest failed. 1 1 1 0 1 0 1 1 03h = Hardware Memtest failure in Lockstep Channel mode requiring a channel to be disabled. This is a fatal error which requires a reset and calling MRC with a different RAS mode to retry. Revision 1.0 237