User Manual

Table Of Contents
1-15
Action PHASE POST CODE TYPE DESCRIPTION
Quick VGA
MRC Memory
initialization
0x70
Progress
High Bandwidth Memory
0x7E Pipe Sync AP Boot Mode
0xB0 Detect DIMM Configuration
0xB1 Initialize clocks for all MemSs
0xB2 Gather SPD Data
0xB3 Early Configuration
0xB4 Check DIMM Ranks
0xB5 Parallel Mode Dispatch
0xB6 DDRIO Initialization
0xB7 DDR Training
0xB8 Initialize Throttling
0xB9 Memory Test
0xBA Memory Init
0xBB Initialize Memory Map
0xBC Set RAS Configuration
0xBD Get Margin
0xBE BIOS SSA Initialization
0xBF MRC Done
0xC1 Check POR Compatibility
0xC2 Unlock Memory
0xC3 Check Status
0xC4 Check XMP
0xC5 Initialize Memory
0xC6 Socket DIMM Information
0xC7 Prep NVDIMM for Training
0xC9 Setup SVL and Scrambling
0xCA Init CMI Credit Programming
0xCB Check Ras Support After MemInit
0xCC Initialize ADR
0xCD Init Structures Late
0xCE Memory Late
0xCF Select Boot Mode
DXE (Driver
Execution
Environment)
phase
0x32
Progress
CPU POST-Memory Initialization
0x33 CPU Cache Initialization
0x34 Application Processor(s) (AP) Initialization
0x35 BSP Selection
0x36 CPU Initialization
0x37 Pre-memory NB Initialization
0x3B Pre-memory SB Initialization
0x4F DXE Initial Program Load(IPL)
0x60 DXE Core Started
0x61 DXE NVRAM Initialization
0x62 SB run-time Initialization
0x63 CPU DXE Initialization
0x68 PCI HB Initialization
0x69 NB DXE Initialization
0x6A NB DXE SMM Initialization
0x70 SB DXE Initialization
0x71 SB DXE SMM Initialization
0x72 SB DEVICES Initialization
0x78 ACPI Module Initialization
0x79 CSM Initialization
Normal boot
BDS (Boot Device
Selection) phase
0x90
Progress
BDS started
0x91 Connect device event
0x92 PCI Bus Enumeration
0x93 PCI Bus Enumeration
0x94 PCI Bus Enumeration
0x95 PCI Bus Enumeration
0x96 PCI Bus Enumeration
0x97 Console output connect event
0x98 Console input connect event
0x99 AMI Super IO start
0x9A AMI USB Driver Initialization
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