| 
 | 
| 
  0x60 
 | 
  DXE core is started. 
 | 
| 
  0x61   
 | 
 NVRAM initialization. 
 | 
| 
  0x62   
 | 
 Installation of the South Bridge runtime services. 
 | 
| 
  0x63   
 | 
 CPU DXE initialization is started. 
 | 
| 
  0x64   
 | 
 CPU DXE initialization (CPU module specific). 
 | 
| 
  0x65   
 | 
 CPU DXE initialization (CPU module specific). 
 | 
| 
  0x66   
 | 
 CPU DXE initialization (CPU module specific). 
 | 
| 
  0x67   
 | 
 CPU DXE initialization (CPU module specific). 
 | 
| 
  0x68  
 | 
 PCI host bridge initialization. 
 | 
| 
  0x69    
 | 
 North Bridge DXE initialization is started. 
 | 
| 
 0x6A  
 | 
 North Bridge DXE SMM initialization is started. 
 | 
| 
  0x6B   
 | 
 North Bridge DXE initialization (North Bridge module specific). 
 | 
| 
 0x6C    
 | 
 North Bridge DXE initialization (North Bridge module specific). 
 | 
| 
 0x6D    
 | 
 North Bridge DXE initialization (North Bridge module specific). 
 | 
| 
 0x6E   
 | 
 North Bridge DXE initialization (North Bridge module specific). 
 | 
| 
 0x6F   
 | 
 North Bridge DXE initialization (North Bridge module specific). 
 | 
| 
  0x70   
 | 
 South Bridge DXE initialization is started. 
 | 
| 
 0x71   
 | 
 South Bridge DXE SMM initialization is started. 
 | 
| 
 0x72   
 | 
 South Bridge devices initialization. 
 | 
| 
  0x73   
 | 
 South Bridge DXE initialization (South Bridge module specific). 
 | 
| 
  0x74   
 | 
 South Bridge DXE initialization (South Bridge module specific). 
 | 
| 
 0x75   
 | 
 South Bridge DXE initialization (South Bridge module specific). 
 | 
| 
 0x76    
 | 
 South Bridge DXE initialization (South Bridge module specific). 
 | 
| 
 0x77   
 | 
 South Bridge DXE initialization (South Bridge module specific). 
 | 
| 
 0x78   
 | 
 ACPI module initialization. 
 | 
| 
  0x79   
 | 
 CSM initialization. 
 | 
| 
  0x7A – 0x7F   
 | 
 Reserved for future AMI DXE codes. 
 | 
| 
  0x80 – 0x8F   
 | 
 OEM DXE initialization codes. 
 | 
| 
  0x90   
 | 
 Boot device selection (BDS) phase is started. 
 | 
| 
  0x91  
 | 
 Driver connecting is started. 
 | 
| 
 0x92  
 | 
 PCI Bus initialization is started. 
 | 
| 
 0x93  
 | 
 PCI bus hot plug controller initialization. 
 | 
| 
  0x94   
 | 
 PCI bus enumeration. 
 | 
| 
 0x95    
 | 
 PCI bus request resources. 
 | 
| 
 0x96   
 | 
 PCI bus assign resources. 
 | 
| 
  0x97  
 | 
 Console output devices connect. 
 | 
| 
  0x98   
 | 
 Console input devices connect. 
 | 
| 
   0x99  
 | 
 Super IO initialization. 
 | 
| 
  0x9A   
 | 
 USB initialization is started. 
 | 
| 
  0x9B    
 | 
 USB reset. 
 | 
| 
 0x9C  
 | 
 USB detect. 
 | 
| 
  0x9D   
 | 
 USB enable. 
 | 
| 
 0x9E – 0x9F    
 | 
 Reserved for future AMI codes. 
 | 
| 
 0xA0   
 | 
 IDE initialization is started. 
 | 
| 
 0xA1   
 | 
 IDE reset. 
 | 
| 
 0xA2   
 | 
 IDE detect. 
 | 
| 
  0xA3   
 | 
 IDE enable. 
 | 
| 
 0xA4  
 | 
 SCSI initialization is started. 
 | 
| 
   0xA5  
 | 
 SCSI reset. 
 | 
| 
  0xA6   
 | 
 SCSI detect. 
 | 
| 
  0xA7   
 | 
 SCSI enable. 
 | 
| 
  0xA8  
 | 
 Setup verifying password. 
 | 
| 
  0xA9  
 | 
 Start of Setup. 
 | 
| 
  0xAA  
 | 
 Reserved for ASL (see ASL tatus Codes section below). 
 | 
| 
  0xAB   
 | 
 Setup input wait 0xAC reserved for ASL (see ASL Status Codes section below). 
 | 
| 
  0xAD   
 | 
 Ready to boot event. 
 | 
| 
  0xAE  
 | 
 Legacy boot event. 
 | 
| 
   0xAF  
 | 
 Exit boot services event. 
 | 
| 
  0xB0   
 | 
 | 
| 
  0xB1  
 | 
 | 
| 
   0xB2   
 | 
 | 
| 
  0xB3   
 | 
- 
System reset. 
 
- 
Intel: STS_GLOBAL_EARLY 
 
  
 | 
| 
  0xB4   
 | 
- 
USB hot plug. 
 
- 
Intel: STS_RNK_DETECT 
 
  
 | 
| 
  0xB5  
 | 
- 
PCI bus hot plug. 
 
- 
Intel: STS_CHANNEL_EARLY 
 
  
 | 
| 
   0xB6  
 | 
- 
Clean-up of NVRAM. 
 
- 
Intel: STS_JEDEC_INIT 
 
  
 | 
| 
   0xB7   
 | 
 | 
| 
  0xB8 – 0xBF  
 | 
 Reserved for future AMI codes. 
 | 
| 
  0x00B8 
 | 
 | 
| 
 0x00B9 
 | 
 | 
| 
  0x00BA 
 | 
 | 
| 
 0x00BB 
 | 
 | 
| 
 0x00BC 
 | 
 | 
| 
 0x00BD 
 | 
 Reserved for future AMI code. 
 | 
| 
 0x00BE 
 | 
 Reserved for future AMI code. 
 | 
| 
 0x00BF 
 | 
 | 
| 
   0xC0 – 0xCF  
 | 
 OEM BDS initialization codes. 
 |