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Fehlerdiagnose
Light Guided Diagnose
Diagnostic LED Decoder
1 = LED On, 0 = LED O
Checkpoin
Upper Nibble
t
MSB
8h
4h
2h
1h
LED
#7
#6
#5
#4
MRC Fatal Error Codes
E8h
1
1
1
0
E9h
1
1
1
0
EAh
1
1
1
0
EBh
1
1
1
0
EDh
1
1
1
0
EFh
1
1
1
0
Lower Nibble
LSB
8h
4h
2h
1h
#3
#2
#1
#0
No usable memory error
01h = No memory was detected by SPD read, or invalid config
that causes no operable memory.
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.
Memory is locked by Intel Trusted Execution Technology and is
1
0
0
1
inaccessible
DDR3 channel training error
01h = Error on read DQ/DQS (Data/Data Strobe) init
1
0
1
0
02h = Error on Receive Enable
3h = Error on Write Leveling
04h = Error on write DQ/DQS (Data/Data Strobe
Memory test failure
1
0
1
1
01h = Software memtest failure.
02h = Hardware memtest failed.
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.
DIMM configuration population error
01h = Different DIMM types (UDIMM, RDIMM, LRDIMM) are
detected installed in the system.
02h = Violation of DIMM population rules.
1
1
0
1
03h = The 3rd DIMM slot cannot be populated when QR DIMMs
are installed.
04h = UDIMMs are not supported in the 3rd DIMM slot.
05h = Unsupported DIMM Voltage.
Indicates a CLTT table structure error
1
1
1
1
23
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