Table 10. Mrc Fatal Error Codes - Intel M50CYP2UR Series System Integration And Service Manual

Intel® Server System M50CYP2UR Family System Integration and Service Guide
Upper Nibble
Post Code
(Hex) 8h 4h
BB 1 0
BC 1 0
BE 1 0
BF 1 0
Should a major memory initialization error occur, preventing the system from booting with data integrity, a
beep code is generated, the MRC displays 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.
Note: Fatal MRC errors display POST error codes that may be the same as BIOS POST progress codes
displayed later in the POST process. The fatal MRC codes can be distinguished from the BIOS POST progress
codes by the accompanying memory failure beep code of three long beeps as identified in
Upper Nibble
Post Code
(Hex)
8h 4h 2h
E8 1 1
E9 1 1
EA 1 1
EB 1 1
ED 1 1
EF 1 1
Lower Nibble
2h 1h 8h 4h
1 1 1 0
1 1 1 1
1 1 1 1
1 1 1 1
Table 10 lists all MRC fatal errors that are displayed to the diagnostic LEDs.

Table 10. MRC Fatal Error Codes

Lower Nibble
1h 8h 4h 2h
1 0 1 0 0
1 0 1 0 0
1 0 1 0 1
1 0 1 0 1
1 0 1 1 0
1 0 1 1 1
2h 1h
Program memory map and interleaving
1 1
Program RAS configuration
0 0
Execute BSSA RMT
1 0
MRC is done
1 1
1h
No usable memory error
01h = No memory was detected from SPD read, or invalid config that
causes no operable memory.
0
02h = Memory DIMMs on all channels of all sockets are disabled due to
hardware memtest error.
03h = No memory installed. All channels are disabled.
Memory is locked by Intel® TXT and is inaccessible
1
DDR4 channel training error
01h = Error on read DQ/DQS (Data/Data Strobe) init
02h = Error on Receive Enable
0
03h = Error on Write Leveling
04h = Error on write DQ/DQS (Data/Data Strobe
Memory test failure
01h = Software memtest failure.
1
02h = Hardware memtest failed.
DIMM configuration population error
01h = Different DIMM types (RDIMM, LRDIMM) are detected installed in
the system.
02h = Violation of DIMM population rules.
1
03h = The 3rd DIMM slot cannot be populated when QR DIMMs are
installed.
04h = UDIMMs are not supported.
05h = Unsupported DIMM Voltage.
Indicates a CLTT table structure error
1
Description
Table
Description
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