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Fehlerdiagnose
Light Guided Diagnose
Diagnostic LED Decoder
1 = LED On, 0 = LED O
Upper Nibble
Checkpoint
MSB
8h
4h 2h 1h
LED #
#7
#6
#5
#4
B2h
1
0
1
1
B3h
1
0
1
1
B4h
1
0
1
1
B5h
1
0
1
1
B6h
1
0
1
1
B7h
1
0
1
1
00h
0
0
0
0
S3 Resume
E0h
1
1
0
1
E1h
1
1
0
1
E2h
1
1
0
1
E3h
1
1
0
1
BIOS Recovery
F0h
1
1
1
1
F1h
1
1
1
1
F2h
1
1
1
1
F3h
1
1
1
1
F4h
1
1
1
1
Memory Initialisierung:
Diagnostic LED Decoder
1 = LED On, 0 = LED O
Checkpoin
Upper Nibble
t
MSB
8h
4h
2h
1h
LED
#7
#6
#5
#4
MRC Progress Codes
B0h
1
0
1
1
B1h
1
0
1
1
B2h
1
0
1
1
B3h
1
0
1
1
B4h
1
0
1
1
B5h
1
0
1
1
B6h
1
0
1
1
B7h
1
0
1
1
B8h
1
0
1
1
B9h
1
0
1
1
BAh
1
0
1
1
BBh
1
0
1
1
BCh
1
0
1
1
BFh
1
0
1
1
Lower Nibble
LSB
8h 4h 2h
1h
#3
#2
#1
#0
0
0
1
0 DXE Legacy Option ROM init
0
0
1
1 DXE Reset system
0
1
0
0 DXE USB Hot plug
0
1
0
1 DXE PCI BUS Hot plug
0
1
1
0 DXE NVRAM cleanup
0
1
1
1 DXE Configuration Reset
0
0
0
0 INT19
0
0
0
0 S3 Resume PEIM (S3 started)
0
0
0
1 S3 Resume PEIM (S3 boot script)
0
0
1
0 S3 Resume PEIM (S3 Video Repost)
0
0
1
1 S3 Resume PEIM (S3 OS wake)
0
0
0
0 PEIM which detected forced Recovery condition
0
0
0
1 PEIM which detected User Recovery condition
0
0
1
0 Recovery PEIM (Recovery started)
0
0
1
1 Recovery PEIM (Capsule found)
0
1
0
0 Recovery PEIM (Capsule loaded)
Lower Nibble
LSB
8h
4h
2h
1h
#3
#2
#1
#0
0
0
0
0 Detect DIMM population
0
0
0
1 Set DDR3 frequency
0
0
1
0 Gather remaining SPD data
0
0
1
1 Program registers on the memory controller level
0
1
0
0 Evaluate RAS modes and save rank information
0
1
0
1 Program registers on the channel level
0
1
1
0 Perform the JEDEC defined initialization sequence
0
1
1
1 Train DDR3 ranks
1
0
0
0 Initialize CLTT/OLTT
1
0
0
1 Hardware memory test and init
1
0
1
0 Execute software memory init
1
0
1
1 Program memory map and interleaving
1
1
0
0 Program RAS configuration
1
1
1
1 MRC is done
22
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