Intel R2000GZ R2000GZ and R2000GL - Page 81

POST Memory Initialization MRC Diagnostic Codes, Table 29. MRC Progress Codes

Get Intel R2000GZ PDF manuals and user guides View all Intel R2000GZ manuals
Add to My Manuals
Save this manual to your list of manuals

Page 81 highlights

Intel® Server System R2000GZ/GL Product Family TPS POST Memory Initialization MRC Diagnostic Codes There are two types of POST Diagnostic Codes displayed by the MRC during memory initialization; Progress Codes and Fatal Error Codes. The MRC Progress Codes are displays to the Diagnostic LEDs that show the execution point in the MRC operational path at each step. Table 29. MRC Progress Codes 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 MRC Progress Codes Description B0h 1 0 1 1 0 0 0 0 Detect DIMM population B1h 1 0 1 1 0 0 0 1 Set DDR3 frequency B2h 1 0 1 1 0 0 1 0 Gather remaining SPD data B3h 1 0 1 1 0 0 1 1 Program registers on the memory controller level B4h 1 0 1 1 0 1 0 0 Evaluate RAS modes and save rank information B5h 1 0 1 1 0 1 0 1 Program registers on the channel level B6h 1 0 1 1 0 1 1 0 Perform the JEDEC defined initialization sequence B7h 1 0 1 1 0 1 1 1 Train DDR3 ranks B8h 1 0 1 1 1 0 0 0 Initialize CLTT/OLTT B9h 1 0 1 1 1 0 0 1 Hardware memory test and init BAh 1 0 1 1 1 0 1 0 Execute software memory init BBh 1 0 1 1 1 0 1 1 Program memory map and interleaving BCh 1 0 1 1 1 1 0 0 Program RAS configuration BFh 1 0 1 1 1 1 1 1 MRC is done 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. Revision 2.0 71

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
  • 90
  • 91
  • 92
Intel
®
Server System R2000GZ/GL Product Family TPS
Revision 2.0
71
POST Memory Initialization MRC Diagnostic Codes
There are two types of POST Diagnostic Codes displayed by the MRC during memory initialization; Progress
Codes and Fatal Error Codes.
The MRC Progress Codes are displays to the Diagnostic LEDs that show the execution point in the MRC
operational path at each step.
Table 29. MRC Progress Codes
Checkpoint
Diagnostic LED Decoder
Description
1
= LED On
, 0
= LED Off
Upper Nibble
Lower Nibble
MSB
LSB
8h
4h
2h
1h
8h
4h
2h
1h
LED
#7
#6
#5
#4
#3
#2
#1
#0
MRC Progress Codes
B0h
1
0
1
1
0
0
0
0
Detect DIMM population
B1h
1
0
1
1
0
0
0
1
Set DDR3 frequency
B2h
1
0
1
1
0
0
1
0
Gather remaining SPD data
B3h
1
0
1
1
0
0
1
1
Program registers on the memory controller level
B4h
1
0
1
1
0
1
0
0
Evaluate RAS modes and save rank information
B5h
1
0
1
1
0
1
0
1
Program registers on the channel level
B6h
1
0
1
1
0
1
1
0
Perform the JEDEC defined initialization sequence
B7h
1
0
1
1
0
1
1
1
Train DDR3 ranks
B8h
1
0
1
1
1
0
0
0
Initialize CLTT/OLTT
B9h
1
0
1
1
1
0
0
1
Hardware memory test and init
BAh
1
0
1
1
1
0
1
0
Execute software memory init
BBh
1
0
1
1
1
0
1
1
Program memory map and interleaving
BCh
1
0
1
1
1
1
0
0
Program RAS configuration
BFh
1
0
1
1
1
1
1
1
MRC is done
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.