Table 78. Mrc Progress Codes; Table 79. Mrc Fatal Error Codes - Intel S2600CO Family Technical Product Specification

Intel® Server Board S2600CO Family TPS
Diagnostic LED Decoder
1 = LED On, 0 = LED Off
Upper Nibble
Checkpoint
MSB
8h 4h 2h
LED #7 #6 #5
MRC Progress Codes
B0h
1 0 1
B1h 1 0 1
B2h 1 0 1
B3h 1 0 1
B4h 1 0 1
B5h 1 0 1
B6h 1 0 1
B7h 1 0 1
B8h 1 0 1
B9h 1 0 1
BAh 1 0 1
BBh 1 0 1
BCh 1 0 1
BFh 1 0 1
Memory Initialization at the beginning of POST includes multiple functions, including: discovery,
channel training, validation that 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 do NOT get logged as SEL events. The following table lists all
MRC fatal errors that are displayed to the Diagnostic LEDs.
Diagnostic LED Decoder
1 = LED On, 0 = LED Off
Checkpoint Upper Nibble
MSB
8h 4h 2h
LED #7 #6 #5
MRC Fatal Error Codes
E8h
1 1 1
Revision 1.0

Table 78. MRC Progress Codes

Lower Nibble
LSB
1h 8h 4h 2h 1h
#4 #3 #2 #1 #0
1 0 0 0 0
1 0 0 0 1
1 0 0 1 0
1 0 0 1 1
1 0 1 0 0
1 0 1 0 1
1 0 1 1 0
1 0 1 1 1
1 1 0 0 0
1 1 0 0 1
1 1 0 1 0
1 1 0 1 1
1 1 1 0 0
1 1 1 1 1

Table 79. MRC Fatal Error Codes

Lower Nibble
LSB
1h 8h 4h 2h 1h
#4 #3 #2 #1 #0
0 1 0 0 0
Intel order number G42278-002
Appendix F: POST Code Diagnostic LED Decoder
Detect DIMM population
Set DDR3 frequency
Gather remaining SPD data
Program registers on the memory controller level
Evaluate RAS modes and save rank information
Program registers on the channel level
Perform the JEDEC defined initialization sequence
Train DDR3 ranks
Initialize CLTT/OLTT
Hardware memory test and init
Execute software memory init
Program memory map and interleaving
Program RAS configuration
MRC is done
Description (with MRC Internal Minor Code)
No usable memory error
01h = No memory was detected from the SPD read, or
invalid config that causes no operable memory.
02h = Memory DIMMs on all channels of all sockets are
Description
145