Penguin Computing Relion 1900e, Technical Manual

Page: 151 / 174

Relion 1900e/2900e Manual
Revision 1.3 136
Should a major memory initialization error occur, preventing 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.
NOTE: Fatal MRC errors will 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 3 long beeps as identified in Table 59.
Table 62. MRC Fatal Error 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 Fatal Error Codes
E8h
1 1 1 0 1 0 0 0
No usable memory error
01h = No memory was detected from SPD read, or invalid config that
causes no operable memory.
02h = Memory DIMMs on all channels of all sockets are disabled due to
hardware memtest error.
03h = No memory installed. All channels are disabled.
E9h
1 1 1 0 1 0 0 1 Memory is locked by Intel Trusted Execution Technology and is
inaccessible
EAh
1 1 1 0 1 0 1 0
DDR3 channel training error
01h = Error on read DQ/DQS (Data/Data Strobe) init
02h = Error on Receive Enable
03h = Error on Write Leveling
04h = Error on write DQ/DQS (Data/Data Strobe
EBh
1 1 1 0 1 0 1 1
Memory test failure
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.
EDh
1 1 1 0 1 1 0 1
DIMM configuration population error
01h = Different DIMM types (UDIMM, RDIMM, LRDIMM) are detected
installed in the system.
02h = Violation of DIMM population rules.
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.