Error Messages and Beep Codes 
73 
Table 41.  Port 80h POST Codes (continued) 
Port 80 Code  Progress Code Enumeration 
  Removable Media 
0xB8  Resetting removable media 
0xB9  Disabling removable media 
0xBA  Detecting presence of a removable media (IDE, CDROM detection 
etc.) 
0xBB  Enabling/configuring a removable media 
  DXE Core 
0xE4  Entered DXE phase 
  BDS 
0xE7  Waiting for user input 
0xE8  Checking password 
0xE9  Entering BIOS setup 
0xEB  Calling Legacy Option ROMs 
  Runtime Phase/EFI OS Boot 
0xF8  EFI boot service ExitBootServices( ) has been called 
0xF9  EFI runtime service SetVirtualAddressMap(  ) has been called