Product Service Guide

Intel
®
Server Board S5500BC User’s Guide 53
0xE8h O OOX OXXXNo Usable Memory Error:
No memory in the system,
or SPD bad so no memory
could be detected.
0xEAh O OOX OXOXChannel Training Error:
DQ/DQS training failed on
a channel during memory
channel initialization. If no
usable memory remains,
system is halted.
0xEBh O OOX OXOOMemory Test Error:
Memory failed Hardware
BIST.
0xEDh O OOX OOXOPopulation Error: RDIMMs
and UDIMMs cannot be
mixed in the system.
0xEEh O OOX OOOXMismatch Error: More
than two quad-ranked
DIMMs in a channel.
Memory Reference Code Progress Codes (Not accompanied by a beep code)
0xB0h O XOO XXXXChipset Initialization
Phase
0xB1h O XOO XXXOReset Phase
0xB2h O XOO XXOXDIMM Detection Phase
0xB3h O X O O X X O O Clock Initialization Phase
0xb4h O X O O X O X X SPD Data Collection
Phase
0xb6h O X O O X O O X Rank Formation Phase
0xB8h O XOO OXXXChannel Training Phase
0xB9h O X O O O X X O Memory Test Phase
0xBAh O X O O O X O X Memory Map Creation
Phase
0xBBh O X O O O X O O RAS Initialization Phase
0xBCh O XOO OOXXMRC Complete
Host Processor
0x04h X X X O X O X X Early processor
initialization (flat32.asm)
where system BSP is
selected.
Table 8. Diagnostic LED POST Code Decoder